Using the nexsciTAP Server with the PyVO Client to Access LWS or NIRC Data At KOA In Synchronous Mode

The nexsciTAP server

The NASA Exoplanet Science Institute (NExScI) (visit https://nexsci.caltech.edu) has developed a Python-based server to implement an API that complies with the Virtual Observatory (VO) Table Access Protocol(TAP) version 1.1 (September 2019) (http://ivoa.net/documents/TAP/20190927/index.html), a standard recommended by the International Virtual Observatory alliance (IVOA) (http://ivoa.net).

The TAP API enables a rich variety of searches against tabular data, including cone, box or all-sky searches, temporal searches, combinations of spatial searches and temporal searches, searches against instrumental attributes and program attributes.

This tutorial supports demonstrates how to use the PyVO client to perform synchronous TAP-based queries for public raw science and calibation data acquired with the Long Wavelength Spectrometer (LWS) or Near Infrared Camera (NIRC); these data are hosted at the Keck Observatory Archive (KOA; https://koa.ipac.caltech.edu).

Requirements

This tutorial uses PyVO version 1.1.1, and can be installed from PyPI:

$ pip install --upgrade PyVO

The tutorial requires Python 3.6 (or above), plus the table read and write functions from Astropy. We have tested with Astropy 4.0.1, but any version should work. We recommend using the Ananconda Python distribution.

A note on output records

The number of records returned here may differ from those returned here because new data are released daily.

Version 1.0 (August, 2021)

Set up

print("from pyvo.dal import tap")
print("koa = tap.TAPService(\"https://koa.ipac.caltech.edu/TAP\")")
print("import time")
print("import sys")
print("import os")
print("import time")
print("import warnings")
print(" ")
print('─' * 10)
print(" ")


from pyvo.dal import tap 
koa = tap.TAPService("https://koa.ipac.caltech.edu/TAP")
import time

import sys
import os
import time
import warnings

from pyvo.dal import tap
koa = tap.TAPService("https://koa.ipac.caltech.edu/TAP")
import time
import sys
import os
import time
import warnings
 
──────────
 

Define instrument

Uncomment the instrument below for either LWS or NIRC

# Uncomment below for LWS
instrument = 'LWS'

# Uncomment for NIRC
#instrument = 'NIRC'

Define search parameters

if (instrument == 'LWS'):
    instr = 'lws'
    koatable = 'koa_lws'    
    outdir = './outputLW_sync/'
    koaid_date = '19981203'
    startdate = '1998-12-03 00:00:00'
    enddate = '1998-12-27 23:59:59'
    date = '1998-12-03'
    program = 'A078LS'
    circle_pos = '68.98 16.51 1.0'
    box_pos = '68.98 16.51 0.5 0.5'
    polygon_pos = '67.98,15.51,67.98,17.51,70.98,22.03'

if (instrument == 'NIRC'):
    instr = 'nirc'
    koatable = 'koa_nirc'
    outdir = './outputN1_sync/'
    koaid_date = '19950316'
    startdate = '1995-03-16 00:00:00'
    enddate = '1995-04-01 23:59:59'
    date = '1995-03-16'
    program = 'U41N'
    circle_pos = '162.07 12.63 1.0'
    box_pos = '162.07 12.63 0.5 0.5'
    polygon_pos = '161.07,11.63,161.07,13.63,164.07,12.63'

Create output directory

print("try:")
print("\tos.mkdir('" + outdir + "')")
print("except:")
print("\tprint (\" " + instrument + " Directory exists already\", flush=True)")
print(" ")
print('─' * 10)
print(" ")

try:
    os.mkdir(outdir)
except:
    print(instrument + " Directory exists already", flush=True)

try:
	os.mkdir('./outputLW_sync/')
except:
	print (" LWS Directory exists already", flush=True)
 
──────────
 
LWS Directory exists already

Query by date

# write results to VOTable format
print("sql = \"select koaid, filehand from "+ koatable + " where koaid like '%" + koaid_date + "%'\"")
print("results= koa.run_sync(sql)")
print("print(results)")
print("table=results.to_table()")
print("table.write ('" + outdir + instr + "_table_ipacascii.vot',format='votable',overwrite=True)")
print(" ")
print('─' * 10)
print(" ")

sql = "select koaid, filehand from " + koatable + " where koaid like '%" + koaid_date + "%'"
results = koa.run_sync(sql)
print(results)
table=results.to_table()
table.write (outdir + instr + "_table_ipacascii.vot",format='votable',overwrite=True)

sql = "select koaid, filehand from koa_lws where koaid like '%19981203%'"
results= koa.run_sync(sql)
print(results)
table=results.to_table()
table.write ('./outputLW_sync/lws_table_ipacascii.vot',format='votable',overwrite=True)
 
──────────
 
<Table length=63>
        koaid                                filehand                     
        object                                object                      
---------------------- ---------------------------------------------------
LW.19981203.08419.fits /koadata31/LWS/19981203/lev0/LW.19981203.08419.fits
LW.19981203.55485.fits /koadata31/LWS/19981203/lev0/LW.19981203.55485.fits
LW.19981203.59695.fits /koadata31/LWS/19981203/lev0/LW.19981203.59695.fits
LW.19981203.55023.fits /koadata31/LWS/19981203/lev0/LW.19981203.55023.fits
LW.19981203.57381.fits /koadata31/LWS/19981203/lev0/LW.19981203.57381.fits
LW.19981203.55703.fits /koadata31/LWS/19981203/lev0/LW.19981203.55703.fits
LW.19981203.56388.fits /koadata31/LWS/19981203/lev0/LW.19981203.56388.fits
LW.19981203.56623.fits /koadata31/LWS/19981203/lev0/LW.19981203.56623.fits
LW.19981203.56888.fits /koadata31/LWS/19981203/lev0/LW.19981203.56888.fits
LW.19981203.57719.fits /koadata31/LWS/19981203/lev0/LW.19981203.57719.fits
                   ...                                                 ...
LW.19981203.23814.fits /koadata31/LWS/19981203/lev0/LW.19981203.23814.fits
LW.19981203.23960.fits /koadata31/LWS/19981203/lev0/LW.19981203.23960.fits
LW.19981203.24201.fits /koadata31/LWS/19981203/lev0/LW.19981203.24201.fits
LW.19981203.39808.fits /koadata31/LWS/19981203/lev0/LW.19981203.39808.fits
LW.19981203.37619.fits /koadata31/LWS/19981203/lev0/LW.19981203.37619.fits
LW.19981203.39910.fits /koadata31/LWS/19981203/lev0/LW.19981203.39910.fits
LW.19981203.44693.fits /koadata31/LWS/19981203/lev0/LW.19981203.44693.fits
LW.19981203.47031.fits /koadata31/LWS/19981203/lev0/LW.19981203.47031.fits
LW.19981203.49426.fits /koadata31/LWS/19981203/lev0/LW.19981203.49426.fits
LW.19981203.49988.fits /koadata31/LWS/19981203/lev0/LW.19981203.49988.fits

PyVO by default returns results in VOTable format. Convert them to IPAC ASCII and CSV format.

# write results to an IPAC ASCII table
print("sql = \"select koaid, filehand from " + koatable + " where koaid like '%" + koaid_date + "%'\"")
print("results = koa.run_sync(sql)")
print("print(results)")
print("table=results.to_table()")
print("table.write ('" + outdir + instr + "_table_ipacascii.tbl',format='ascii.ipac',overwrite=True)")
print(" ")
print('─' * 10)
print(" ")

sql = "select koaid, filehand from " + koatable + " where koaid like '%" + koaid_date + "%' "
results = koa.run_sync(sql)
print(results)
table=results.to_table()
table.write (outdir + instr + "_table_ipacascii.tbl",format='ascii.ipac',overwrite=True)

sql = "select koaid, filehand from koa_lws where koaid like '%19981203%'"
results = koa.run_sync(sql)
print(results)
table=results.to_table()
table.write ('./outputLW_sync/lws_table_ipacascii.tbl',format='ascii.ipac',overwrite=True)
 
──────────
 
<Table length=63>
        koaid                                filehand                     
        object                                object                      
---------------------- ---------------------------------------------------
LW.19981203.08419.fits /koadata31/LWS/19981203/lev0/LW.19981203.08419.fits
LW.19981203.55485.fits /koadata31/LWS/19981203/lev0/LW.19981203.55485.fits
LW.19981203.59695.fits /koadata31/LWS/19981203/lev0/LW.19981203.59695.fits
LW.19981203.55023.fits /koadata31/LWS/19981203/lev0/LW.19981203.55023.fits
LW.19981203.57381.fits /koadata31/LWS/19981203/lev0/LW.19981203.57381.fits
LW.19981203.55703.fits /koadata31/LWS/19981203/lev0/LW.19981203.55703.fits
LW.19981203.56388.fits /koadata31/LWS/19981203/lev0/LW.19981203.56388.fits
LW.19981203.56623.fits /koadata31/LWS/19981203/lev0/LW.19981203.56623.fits
LW.19981203.56888.fits /koadata31/LWS/19981203/lev0/LW.19981203.56888.fits
LW.19981203.57719.fits /koadata31/LWS/19981203/lev0/LW.19981203.57719.fits
                   ...                                                 ...
LW.19981203.23814.fits /koadata31/LWS/19981203/lev0/LW.19981203.23814.fits
LW.19981203.23960.fits /koadata31/LWS/19981203/lev0/LW.19981203.23960.fits
LW.19981203.24201.fits /koadata31/LWS/19981203/lev0/LW.19981203.24201.fits
LW.19981203.39808.fits /koadata31/LWS/19981203/lev0/LW.19981203.39808.fits
LW.19981203.37619.fits /koadata31/LWS/19981203/lev0/LW.19981203.37619.fits
LW.19981203.39910.fits /koadata31/LWS/19981203/lev0/LW.19981203.39910.fits
LW.19981203.44693.fits /koadata31/LWS/19981203/lev0/LW.19981203.44693.fits
LW.19981203.47031.fits /koadata31/LWS/19981203/lev0/LW.19981203.47031.fits
LW.19981203.49426.fits /koadata31/LWS/19981203/lev0/LW.19981203.49426.fits
LW.19981203.49988.fits /koadata31/LWS/19981203/lev0/LW.19981203.49988.fits

#  write results to CSV file
print("sql = \"select koaid, filehand from " + koatable + " where koaid like '%" + koaid_date + "%'\"")
print("results = koa.run_sync(sql)")
print("print (results)")
print("table=results.to_table()")
print("table.write ('"+ outdir + instr + "_table_csv.csv',format='csv', overwrite=True)")
print(" ")
print('─' * 10)
print(" ")
      
sql = "select koaid, filehand from " + koatable + " where koaid like '%" + koaid_date + "%' "
results = koa.run_sync(sql)
print(results)
table=results.to_table()
table.write (outdir + instr + "_table_csv.csv",format='csv', overwrite=True)

sql = "select koaid, filehand from koa_lws where koaid like '%19981203%'"
results = koa.run_sync(sql)
print (results)
table=results.to_table()
table.write ('./outputLW_sync/lws_table_csv.csv',format='csv', overwrite=True)
 
──────────
 
<Table length=63>
        koaid                                filehand                     
        object                                object                      
---------------------- ---------------------------------------------------
LW.19981203.08419.fits /koadata31/LWS/19981203/lev0/LW.19981203.08419.fits
LW.19981203.55485.fits /koadata31/LWS/19981203/lev0/LW.19981203.55485.fits
LW.19981203.59695.fits /koadata31/LWS/19981203/lev0/LW.19981203.59695.fits
LW.19981203.55023.fits /koadata31/LWS/19981203/lev0/LW.19981203.55023.fits
LW.19981203.57381.fits /koadata31/LWS/19981203/lev0/LW.19981203.57381.fits
LW.19981203.55703.fits /koadata31/LWS/19981203/lev0/LW.19981203.55703.fits
LW.19981203.56388.fits /koadata31/LWS/19981203/lev0/LW.19981203.56388.fits
LW.19981203.56623.fits /koadata31/LWS/19981203/lev0/LW.19981203.56623.fits
LW.19981203.56888.fits /koadata31/LWS/19981203/lev0/LW.19981203.56888.fits
LW.19981203.57719.fits /koadata31/LWS/19981203/lev0/LW.19981203.57719.fits
                   ...                                                 ...
LW.19981203.23814.fits /koadata31/LWS/19981203/lev0/LW.19981203.23814.fits
LW.19981203.23960.fits /koadata31/LWS/19981203/lev0/LW.19981203.23960.fits
LW.19981203.24201.fits /koadata31/LWS/19981203/lev0/LW.19981203.24201.fits
LW.19981203.39808.fits /koadata31/LWS/19981203/lev0/LW.19981203.39808.fits
LW.19981203.37619.fits /koadata31/LWS/19981203/lev0/LW.19981203.37619.fits
LW.19981203.39910.fits /koadata31/LWS/19981203/lev0/LW.19981203.39910.fits
LW.19981203.44693.fits /koadata31/LWS/19981203/lev0/LW.19981203.44693.fits
LW.19981203.47031.fits /koadata31/LWS/19981203/lev0/LW.19981203.47031.fits
LW.19981203.49426.fits /koadata31/LWS/19981203/lev0/LW.19981203.49426.fits
LW.19981203.49988.fits /koadata31/LWS/19981203/lev0/LW.19981203.49988.fits

Select all keywords for data acquired on UT Date

print("sql = \"select * from " + koatable + " where koaid like '%" + koaid_date + "%' \"")
print("results = koa.run_sync(sql)")
print("print (results)")
print("table_selectall=results.to_table()")
print("table_selectall.write ('" + outdir + instr + "_table_selectall.vot',format='votable',overwrite=True)")
print(" ")
print('─' * 10)
print(" ")


sql = "select * from " + koatable + " where koaid like '%" + koaid_date + "%' "
results = koa.run_sync(sql)
print (results)
table_selectall=results.to_table()
table_selectall.write (outdir + instr + "_table_selectall.vot",format='votable',overwrite=True)

sql = "select * from koa_lws where koaid like '%19981203%' "
results = koa.run_sync(sql)
print (results)
table_selectall=results.to_table()
table_selectall.write ('./outputLW_sync/lws_table_selectall.vot',format='votable',overwrite=True)
 
──────────
 
<Table length=63>
        koaid              ofname     propint ...         z           spt_ind 
        object             object      int32  ...      float64         int32  
---------------------- -------------- ------- ... ------------------ ---------
LW.19981203.08419.fits   lws0001.fits      18 ...   0.94128377839366 231320231
LW.19981203.55485.fits   irc0080.fits      18 ...   0.22971800335177 220221323
LW.19981203.59695.fits   irc0102.fits      18 ...  0.229531147144593 220221323
LW.19981203.55023.fits   irc0078.fits      18 ...   0.22971800335177 220221323
LW.19981203.57381.fits   irc0090.fits      18 ...  0.229701016773622 220221323
LW.19981203.55703.fits   irc0082.fits      18 ...   0.22971800335177 220221323
LW.19981203.56388.fits   irc0084.fits      18 ...  0.229701016773622 220221323
LW.19981203.56623.fits   irc0086.fits      18 ...  0.229701016773622 220221323
LW.19981203.56888.fits   irc0088.fits      18 ...  0.229701016773622 220221323
LW.19981203.57719.fits   irc0092.fits      18 ...  0.229701016773622 220221323
                   ...            ...     ... ...                ...       ...
LW.19981203.23814.fits   lws0025.fits      18 ...  0.470673134104844 200111131
LW.19981203.23960.fits   lws0028.fits      18 ...  0.470719330980502 200111131
LW.19981203.24201.fits   lws0031.fits      18 ...  0.470719330980502 200111131
LW.19981203.39808.fits   lws0047.fits      18 ...   0.28417398445677 230301121
LW.19981203.37619.fits   lws0043.fits      18 ...  0.284157250672583 230301121
LW.19981203.39910.fits   lws0048.fits      18 ...   0.28417398445677 230301121
LW.19981203.44693.fits vycma0056.fits      18 ... -0.434735114462566 110110112
LW.19981203.47031.fits vycma0061.fits      18 ... -0.434703678780342 110110112
LW.19981203.49426.fits vycma0063.fits      18 ... -0.434703678780342 110110112
LW.19981203.49988.fits vycma0067.fits      18 ... -0.434703678780342 110110112

Select columns acquired on UT date

print("sql = \"select koaid, filehand from " + koatable + " where koaid like '%" + koaid_date + "%'\"")
print("results = koa.run_sync(sql)")
print("print(results)")
print("table   = results.to_table()")
print("table.write('" + outdir + instr + "_select_columns.tbl',format='ascii.ipac',overwrite=True)")
print(" ")
print('─' * 10)
print(" ")

sql = "select koaid, filehand from " + koatable + " where koaid like '%" + koaid_date + "%'"
results = koa.run_sync(sql)
print(results)
table   = results.to_table()
table.write(outdir + instr + "_select_columns.tbl",format='ascii.ipac',overwrite=True)

sql = "select koaid, filehand from koa_lws where koaid like '%19981203%'"
results = koa.run_sync(sql)
print(results)
table   = results.to_table()
table.write('./outputLW_sync/lws_select_columns.tbl',format='ascii.ipac',overwrite=True)
 
──────────
 
<Table length=63>
        koaid                                filehand                     
        object                                object                      
---------------------- ---------------------------------------------------
LW.19981203.08419.fits /koadata31/LWS/19981203/lev0/LW.19981203.08419.fits
LW.19981203.55485.fits /koadata31/LWS/19981203/lev0/LW.19981203.55485.fits
LW.19981203.59695.fits /koadata31/LWS/19981203/lev0/LW.19981203.59695.fits
LW.19981203.55023.fits /koadata31/LWS/19981203/lev0/LW.19981203.55023.fits
LW.19981203.57381.fits /koadata31/LWS/19981203/lev0/LW.19981203.57381.fits
LW.19981203.55703.fits /koadata31/LWS/19981203/lev0/LW.19981203.55703.fits
LW.19981203.56388.fits /koadata31/LWS/19981203/lev0/LW.19981203.56388.fits
LW.19981203.56623.fits /koadata31/LWS/19981203/lev0/LW.19981203.56623.fits
LW.19981203.56888.fits /koadata31/LWS/19981203/lev0/LW.19981203.56888.fits
LW.19981203.57719.fits /koadata31/LWS/19981203/lev0/LW.19981203.57719.fits
                   ...                                                 ...
LW.19981203.23814.fits /koadata31/LWS/19981203/lev0/LW.19981203.23814.fits
LW.19981203.23960.fits /koadata31/LWS/19981203/lev0/LW.19981203.23960.fits
LW.19981203.24201.fits /koadata31/LWS/19981203/lev0/LW.19981203.24201.fits
LW.19981203.39808.fits /koadata31/LWS/19981203/lev0/LW.19981203.39808.fits
LW.19981203.37619.fits /koadata31/LWS/19981203/lev0/LW.19981203.37619.fits
LW.19981203.39910.fits /koadata31/LWS/19981203/lev0/LW.19981203.39910.fits
LW.19981203.44693.fits /koadata31/LWS/19981203/lev0/LW.19981203.44693.fits
LW.19981203.47031.fits /koadata31/LWS/19981203/lev0/LW.19981203.47031.fits
LW.19981203.49426.fits /koadata31/LWS/19981203/lev0/LW.19981203.49426.fits
LW.19981203.49988.fits /koadata31/LWS/19981203/lev0/LW.19981203.49988.fits

Select a maximum number of records

print("sql = \"select koaid, filehand, frameno from " + koatable + " where koaid like '%" + koaid_date + "%'\"")
print("results = koa.run_sync(sql, maxrec=20)")
print("print (results)")
print("table   = results.to_table()")
print("table.write('" + outdir + instr +  "_select_maxrec.tbl',format='ascii.ipac',overwrite=True)")
print(" ")
print('─' * 10)
print(" ")

sql = "select koaid, filehand, frameno from " +  koatable + " where koaid like '%" + koaid_date + "%'"
results = koa.run_sync(sql, maxrec=20)
print (results)

table   = results.to_table()
table.write(outdir + instr + "_select_maxrec.tbl",format='ascii.ipac',overwrite=True)

sql = "select koaid, filehand, frameno from koa_lws where koaid like '%19981203%'"
results = koa.run_sync(sql, maxrec=20)
print (results)
table   = results.to_table()
table.write('./outputLW_sync/lws_select_maxrec.tbl',format='ascii.ipac',overwrite=True)
 
──────────
 
<Table length=20>
        koaid          ... frameno
        object         ...  int32 
---------------------- ... -------
LW.19981203.08419.fits ...       1
LW.19981203.55485.fits ...      80
LW.19981203.59695.fits ...     102
LW.19981203.55023.fits ...      78
LW.19981203.57381.fits ...      90
LW.19981203.55703.fits ...      82
LW.19981203.56388.fits ...      84
LW.19981203.56623.fits ...      86
LW.19981203.56888.fits ...      88
LW.19981203.57719.fits ...      92
LW.19981203.59336.fits ...      98
LW.19981203.58397.fits ...      94
LW.19981203.58630.fits ...      95
LW.19981203.59572.fits ...     101
LW.19981203.59487.fits ...     100
LW.19981203.20446.fits ...      14
LW.19981203.13742.fits ...       2
LW.19981203.19367.fits ...       9
LW.19981203.19491.fits ...      10
LW.19981203.20423.fits ...      13

Select records by time range

print("sql = \"select koaid, filehand from "+ koatable + " where (utdatetime >= to_date('" + startdate + "', 'yyyy-mm-dd HH24:MI:SS') and utdatetime <= to_date('" + enddate + "', 'yyyy-mm-dd HH24:MI:SS'))\"")
print("results  = koa.run_sync(sql)")
print("print (results)")
print("table_daterange=results.to_table()")
print("table.write ('" + outdir + instr + "_table_daterange.vot',format='votable',overwrite=True)")
print(" ")
print('─' * 10)
print(" ")


sql = "select koaid, filehand from " + koatable + " where (utdatetime >= to_date('" + startdate + "', 'yyyy-mm-dd HH24:MI:SS') and utdatetime <= to_date('" + enddate + "', 'yyyy-mm-dd HH24:MI:SS'))"
results  = koa.run_sync(sql)
print (results)
table_daterange=results.to_table()
table.write (outdir + instr + "_table_daterange.vot",format='votable',overwrite=True)

sql = "select koaid, filehand from koa_lws where (utdatetime >= to_date('1998-12-03 00:00:00', 'yyyy-mm-dd HH24:MI:SS') and utdatetime <= to_date('1998-12-27 23:59:59', 'yyyy-mm-dd HH24:MI:SS'))"
results  = koa.run_sync(sql)
print (results)
table_daterange=results.to_table()
table.write ('./outputLW_sync/lws_table_daterange.vot',format='votable',overwrite=True)
 
──────────
 
<Table length=229>
        koaid                                filehand                     
        object                                object                      
---------------------- ---------------------------------------------------
LW.19981227.32380.fits /koadata31/LWS/19981227/lev0/LW.19981227.32380.fits
LW.19981227.47503.fits /koadata31/LWS/19981227/lev0/LW.19981227.47503.fits
LW.19981227.47636.fits /koadata31/LWS/19981227/lev0/LW.19981227.47636.fits
LW.19981227.47724.fits /koadata31/LWS/19981227/lev0/LW.19981227.47724.fits
LW.19981227.47904.fits /koadata31/LWS/19981227/lev0/LW.19981227.47904.fits
LW.19981227.47993.fits /koadata31/LWS/19981227/lev0/LW.19981227.47993.fits
LW.19981227.48087.fits /koadata31/LWS/19981227/lev0/LW.19981227.48087.fits
LW.19981227.48197.fits /koadata31/LWS/19981227/lev0/LW.19981227.48197.fits
LW.19981227.48319.fits /koadata31/LWS/19981227/lev0/LW.19981227.48319.fits
LW.19981227.49207.fits /koadata31/LWS/19981227/lev0/LW.19981227.49207.fits
                   ...                                                 ...
LW.19981205.16579.fits /koadata31/LWS/19981205/lev0/LW.19981205.16579.fits
LW.19981205.17364.fits /koadata31/LWS/19981205/lev0/LW.19981205.17364.fits
LW.19981205.16650.fits /koadata31/LWS/19981205/lev0/LW.19981205.16650.fits
LW.19981205.16687.fits /koadata31/LWS/19981205/lev0/LW.19981205.16687.fits
LW.19981205.16724.fits /koadata31/LWS/19981205/lev0/LW.19981205.16724.fits
LW.19981205.17438.fits /koadata31/LWS/19981205/lev0/LW.19981205.17438.fits
LW.19981205.17401.fits /koadata31/LWS/19981205/lev0/LW.19981205.17401.fits
LW.19981205.17478.fits /koadata31/LWS/19981205/lev0/LW.19981205.17478.fits
LW.19981205.17513.fits /koadata31/LWS/19981205/lev0/LW.19981205.17513.fits
LW.19981205.17605.fits /koadata31/LWS/19981205/lev0/LW.19981205.17605.fits

Select records by program ID

print("sql= (\"select koaid, filehand, progid from " + koatable + " where (progid = '" + program + "')\")")
print("results  = koa.run_sync(sql)")
print("print(results)")
print("table_progid=results.to_table()")
print("table.write ('"+ outdir +instr + "_progid.vot',format='votable',overwrite=True)")
print(" ")
print('─' * 10)
print(" ")

sql= ("select koaid, filehand, progid from " + koatable + " where (progid = '" + program + "')")
results  = koa.run_sync(sql)
print(results)
table_progid=results.to_table()
table.write (outdir + instr + "_progid.vot",format='votable',overwrite=True)

sql= ("select koaid, filehand, progid from koa_lws where (progid = 'A078LS')")
results  = koa.run_sync(sql)
print(results)
table_progid=results.to_table()
table.write ('./outputLW_sync/lws_progid.vot',format='votable',overwrite=True)
 
──────────
 
<Table length=338>
        koaid          ... progid
        object         ... object
---------------------- ... ------
LW.20050219.22427.fits ... A078LS
LW.20050219.22529.fits ... A078LS
LW.20050219.23025.fits ... A078LS
LW.20050219.23128.fits ... A078LS
LW.20050219.23332.fits ... A078LS
LW.20050219.23433.fits ... A078LS
LW.20050219.23865.fits ... A078LS
LW.20050219.24609.fits ... A078LS
LW.20050219.24710.fits ... A078LS
LW.20050219.24926.fits ... A078LS
                   ... ...    ...
LW.20050220.43116.fits ... A078LS
LW.20050220.43477.fits ... A078LS
LW.20050220.45889.fits ... A078LS
LW.20050220.49828.fits ... A078LS
LW.20050220.50336.fits ... A078LS
LW.20050220.50700.fits ... A078LS
LW.20050220.51124.fits ... A078LS
LW.20050220.51861.fits ... A078LS
LW.20050220.52308.fits ... A078LS
LW.20050220.53887.fits ... A078LS

Spatial cone search with column selection

print("sql=(\"select koaid, filehand, ra, dec from " + koatable + " where contains(point('J2000', ra, dec), circle('J2000', " + circle_pos + ")) = 1\")")
print("results  = koa.run_sync(sql)")
print("print(results)")
print("table_spatial_1=results.to_table()")
print("table.write ('" + outdir + instr + "_table_spatial_circle.vot',format='votable',overwrite=True)")
print(" ")
print('─' * 10)
print(" ")

sql=("select koaid, filehand, ra, dec from " + koatable + " where contains(point('J2000', ra, dec), circle('J2000', " + circle_pos + ")) = 1")
results  = koa.run_sync(sql)
print(results)
table_spatial_1=results.to_table()
table.write (outdir + instr + "_table_spatial_circle.vot",format='votable',overwrite=True)

sql=("select koaid, filehand, ra, dec from koa_lws where contains(point('J2000', ra, dec), circle('J2000', 68.98 16.51 1.0)) = 1")
results  = koa.run_sync(sql)
print(results)
table_spatial_1=results.to_table()
table.write ('./outputLW_sync/lws_table_spatial_circle.vot',format='votable',overwrite=True)
 
──────────
 
<Table length=518>
        koaid          ...   dec   
        object         ... float64 
---------------------- ... --------
LW.20050219.26119.fits ...   16.508
LW.20050219.26167.fits ...   16.509
LW.20050219.26268.fits ...   16.508
LW.20050219.26436.fits ...   16.508
LW.20050219.26018.fits ...    16.51
LW.20050219.26334.fits ...   16.509
LW.20050220.22673.fits ...    16.51
LW.20050220.29357.fits ...    16.51
LW.20050220.29528.fits ...   16.509
LW.20050220.22843.fits ...   16.508
                   ... ...      ...
LW.19990902.50388.fits ...   16.508
LW.19990902.50306.fits ...   16.508
LW.19990902.50775.fits ...   16.509
LW.19990902.54480.fits ...   16.509
LW.19990902.54570.fits ...   16.509
LW.19990902.54954.fits ...   16.509
LW.19990902.56523.fits ...   16.509
LW.19991122.42812.fits ... 16.50648
LW.19991122.42980.fits ... 16.50648
LW.19991122.47190.fits ... 16.51249

Spatial box search

print("sql=(\"select koaid, filehand, ra, dec from " + koatable + " where contains(point('J2000', ra, dec), box('J2000', " + box_pos + ")) = 1\")")
print("results  = koa.run_sync(sql)")
print("print(results)")
print("table_spatial_1=results.to_table()")
print("table.write ('" + outdir + instr + "_table_spatial_box.vot',format='votable',overwrite=True)")
print(" ")
print('─' * 10)
print(" ")

sql=("select koaid, filehand, ra, dec from " + koatable + " where contains(point('J2000', ra, dec), box('J2000', " + box_pos + ")) = 1")
results  = koa.run_sync(sql)
print(results)
table_spatial_1=results.to_table()
table.write (outdir + instr + "_table_spatial_box.vot",format='votable',overwrite=True)

sql=("select koaid, filehand, ra, dec from koa_lws where contains(point('J2000', ra, dec), box('J2000', 68.98 16.51 0.5 0.5)) = 1")
results  = koa.run_sync(sql)
print(results)
table_spatial_1=results.to_table()
table.write ('./outputLW_sync/lws_table_spatial_box.vot',format='votable',overwrite=True)
 
──────────
 
<Table length=518>
        koaid          ...   dec   
        object         ... float64 
---------------------- ... --------
LW.20050219.26119.fits ...   16.508
LW.20050219.26167.fits ...   16.509
LW.20050219.26268.fits ...   16.508
LW.20050219.26436.fits ...   16.508
LW.20050219.26018.fits ...    16.51
LW.20050219.26334.fits ...   16.509
LW.20050220.22673.fits ...    16.51
LW.20050220.29357.fits ...    16.51
LW.20050220.29528.fits ...   16.509
LW.20050220.22843.fits ...   16.508
                   ... ...      ...
LW.19990902.50388.fits ...   16.508
LW.19990902.50306.fits ...   16.508
LW.19990902.50775.fits ...   16.509
LW.19990902.54480.fits ...   16.509
LW.19990902.54570.fits ...   16.509
LW.19990902.54954.fits ...   16.509
LW.19990902.56523.fits ...   16.509
LW.19991122.42812.fits ... 16.50648
LW.19991122.42980.fits ... 16.50648
LW.19991122.47190.fits ... 16.51249

Spatial polygon search

print("sql=(\"select koaid, filehand, ra, dec from " + koatable + " where contains(point('icrs', ra, dec), polygon('J2000', " + polygon_pos + ")) = 1\")")
print("results  = koa.run_sync(sql)")
print("print(results)")
print("table_spatial_1=results.to_table()")
print("table.write ('" + outdir + instr + "_table_spatial_polygon.vot',format='votable',overwrite=True)")
print(" ")
print('─' * 10)
print(" ")

sql=("select koaid, filehand, ra, dec from " + koatable + " where contains(point('icrs', ra, dec), polygon('J2000', " + polygon_pos + ")) = 1")
results  = koa.run_sync(sql)
print(results)
table_spatial_1=results.to_table()
table.write (outdir + instr + "_table_spatial_polygon.vot",format='votable',overwrite=True)

sql=("select koaid, filehand, ra, dec from koa_lws where contains(point('icrs', ra, dec), polygon('J2000', 67.98,15.51,67.98,17.51,70.98,22.03)) = 1")
results  = koa.run_sync(sql)
print(results)
table_spatial_1=results.to_table()
table.write ('./outputLW_sync/lws_table_spatial_polygon.vot',format='votable',overwrite=True)
 
──────────
 
<Table length=41>
        koaid          ...   dec   
        object         ... float64 
---------------------- ... --------
LW.20021113.44213.fits ... 17.86405
LW.20021113.44828.fits ... 17.86406
LW.20030220.22189.fits ...   17.525
LW.20030220.23158.fits ...   17.525
LW.20010312.19037.fits ...   17.528
LW.19990823.52297.fits ...   17.528
LW.19990823.52460.fits ...   17.528
LW.19990823.53149.fits ...   17.528
LW.19990823.53945.fits ...   17.528
LW.19990823.54734.fits ...   17.528
                   ... ...      ...
LW.19991028.50744.fits ... 17.52735
LW.19991123.44243.fits ...   17.862
LW.19991123.44614.fits ...   17.862
LW.19991122.40111.fits ...    17.53
LW.19991122.41310.fits ...   17.527
LW.19991122.38915.fits ...   17.528
LW.19991122.39504.fits ...    17.53
LW.19991122.40493.fits ...   17.527
LW.19991122.40932.fits ...   17.527
LW.19991122.41699.fits ...   17.527

Count number of records in date range

print("sql=(\"select count(*) as count from " + koatable + " where date_obs=to_date('" + date + " ', 'YYYY-MM-DD')\")")
print("results = koa.run_sync(sql)")
print("print(results)")
print(" ")
print('─' * 10)
print(" ")

sql=("select count(*) as count from " + koatable +  " where date_obs=to_date('" + date + "', 'YYYY-MM-DD')")
results = koa.run_sync(sql)
print(results)

sql=("select count(*) as count from koa_lws where date_obs=to_date('1998-12-03 ', 'YYYY-MM-DD')")
results = koa.run_sync(sql)
print(results)
 
──────────
 
<Table length=1>
count
int32
-----
   63

Count total number of records in table

print("sql=\"select count(*) as total from " + koatable + "\"")
print("results = koa.run_sync(sql)")
print("print(results)")
print(" ")
print('─' * 10)
print(" ")

sql="select count(*) as total from " + koatable
results = koa.run_sync(sql)
print(results)

sql="select count(*) as total from koa_lws"
results = koa.run_sync(sql)
print(results)
 
──────────
 
<Table length=1>
total
int32
-----
23737

---

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The Keck Observatory Archive (KOA) is a collaboration between the NASA Exoplanet Science Institute (NExScI) and the W. M. Keck Observatory (WMKO). NExScI is sponsored by NASA's Exoplanet Exploration Program, and operated by the California Institute of Technology in coordination with the Jet Propulsion Laboratory (JPL).

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