KOAID:

KOAID is a unique file name assigned by the archive software to each FITS file. Each filename is in the form XX.YYYYMMDD.#####.fits (pre real-time ingestion) or XX.YYYYMMDD.#####.nn.fits (post real-time ingestion.) NIRC2 additionally has XX.YYYYMMDD.#####.nn_unp.fits), where XX denotes the 2 letter instrument name, YYYYMMDD is the UT date of observation (from the DATE-OBS keyword in the FITS header), and #####.nn is the UTC time (in seconds) at which the exposure was taken (from the UTC keyword). The decimal (nn) portion of the UTC time in seconds is added only for Real Time Ingested files. When the KOAID column contains an active link, clicking on it will initiate a download of that FITS file. Selecting the checkbox to the left of the KOAID will add the FITS file to your download selection list. The 2 letter instrument names are:

• DE = DEIMOS, DF = DEIMOS Flexure Compensation System (fcscal)
• ES = ESI
• HI = HIRES
• KB = KCWI Blue, KF = KCWI Focal Plane Camera (fpc), KR = KCRM Red, KS = KCWI Svc
• KP = KPF
• LB = LRIS Blue, LR = LRIS Red
• LW = LWS
• MF = MOSFIRE
• N1 = NIRC
• N2 = NIRC2
• NR = NIRES spectroscopy, NI = NIRES imaging
• NS = NIRSPEC spectroscopy, NC = NIRSPEC-SCAM imaging
• OS = OSIRIS spectroscopy, OI = OSIRIS imaging

You may enter a whole or partial KOAID value known from a previous session with the archive by using one of the following formats:

N2.20230413.06826.17_unp.fits (NIRC2 only)
N2.20230413.06826.17.fits
HI.20031212.18900.fits
HI.20031212.18900
HI.20031212
HI.2003