Newer
Older
# Data model: *_img_L1_1.fits
## File contents
| HDU | data | note |
|------|-------------------------|------------|
| HDU0 | None | PrimaryHDU |
| HDU1 | reduced image (9k x 9k) | ImageHDU |
## HDU0
| keyword | value | comment | fallback_value | type | module |
|---------|:------|---------------|----------------|------|-----------|
| SIMPLE | True | Fits standard | True | bool | csst_sims |
## HDU1
| keyword | value | comment | fallback_value | type | module |
|-----------|:--------------------------|-------------------------------|----------------|------|-------------------------|
|SATURATE | 1833.333333333333 | | | f32 | csst_ms_mbi_instrument |
|CRCOUNT | 66791 | | | i8 | csst_ms_mbi_instrument |
|INST_V | '0.0.1 ' | | | str | csst_ms_mbi_instrument |
|INST-TOL | '2022-12-30T10:18:53' | Time of last modification | | str | csst_ms_mbi_instrument |
|DATASUM | '1352015684' | data unit checksum updated 2022-10-28T19:29:10 | | str | csst_ms_mbi_instrument |
| keyword | value | comment | fallback_value | type | module |
|-----------|:--------------------------|-------------------------------|----------------|------|-------------------------|
| RADESYS | 'ICRS ' | should be always 'ICRS' | 'ICRS' | str | csst_ms_mbi_distortion |
| STAR_FIT | 11 | | 0 | i8 | csst_ms_mbi_distortion |
| PV1_0 | 0.003205383944913964 | | 0 | f32 | csst_ms_mbi_distortion |
| PV1_1 | 0.8673020820536499 | | 0 | f32 | csst_ms_mbi_distortion |
| PV1_2 | -0.2011989871377834 | | 0 | f32 | csst_ms_mbi_distortion |
| PV1_3 | -0.2597214229472611 | | 0 | f32 | csst_ms_mbi_distortion |
| PV1_4 | 0.4353828741811097 | | 0 | f32 | csst_ms_mbi_distortion |
| PV1_5 | -0.5054216569802673 | | 0 | f32 | csst_ms_mbi_distortion |
| PV1_6 | 0.1951474426617432 | | 0 | f32 | csst_ms_mbi_distortion |
| PV2_0 | 0.00109803885992697 | | 0 | f32 | csst_ms_mbi_distortion |
| PV2_1 | 0.9171065857705857 | | 0 | f32 | csst_ms_mbi_distortion |
| PV2_2 | -0.04908256792722099 | | 0 | f32 | csst_ms_mbi_distortion |
| PV2_3 | -0.09860562038448289 | | 0 | f32 | csst_ms_mbi_distortion |
| PV2_4 | 0.07961855240788976 | | 0 | f32 | csst_ms_mbi_distortion |
| PV2_5 | -0.2009224365497067 | | 0 | f32 | csst_ms_mbi_distortion |
| PV2_6 | 0.1741954691884874 | | 0 | f32 | csst_ms_mbi_distortion |
| RA_OFF | -0.0 | mas in unit | -99 | f32 | csst_ms_mbi_distortion |
| DEC_OFF | 0.0 | mas in unit | -99 | f32 | csst_ms_mbi_distortion |
| RA_STD | 127.1 | mas in unit | -99 | f32 | csst_ms_mbi_distortion |
| DEC_STD | 60.4 | mas in unit | -99 | f32 | csst_ms_mbi_distortion |
| RA_CEN | 192.1940713422841 | the center of detector in ra | -99 | f32 | csst_ms_mbi_distortion |
| DEC_CEN | 26.72643742371229 | the center of detector in dec | -99 | f32 | csst_ms_mbi_distortion |
| DIST_V | '1.0 ' | version of distortion | '0.0' | str | csst_ms_mbi_distortion |
| DIST_TOL | '2022-12-29T16:36:47' | distortion operation time | '2022-12-29T16:36:47' | str | csst_ms_mbi_distortion |
### Header of position calibration
| keyword | value | comment | fallback_value | type | module |
|-----------|:--------------------------|-------------------------------|----------------|------|-------------------------|
| RADESYS | 'ICRS ' | should be always 'ICRS' | 'ICRS' | str | csst_ms_mbi_position |
| PV1_0 | -7.032303876526E-04 | | 0 | f32 | csst_ms_mbi_position |
| PV1_1 | 9.986639936274E-01 | | 0 | f32 | csst_ms_mbi_position |
| PV1_2 | -3.506141592607E-03 | | 0 | f32 | csst_ms_mbi_position |
| PV1_4 | -2.342575913122E-03 | | 0 | f32 | csst_ms_mbi_position |
| PV1_5 | -2.216829433925E-03 | | 0 | f32 | csst_ms_mbi_position |
| PV1_6 | -5.122207406521E-03 | | 0 | f32 | csst_ms_mbi_position |
| PV2_0 | -6.939462894407E-04 | | 0 | f32 | csst_ms_mbi_position |
| PV2_1 | 9.988294486003E-01 | | 0 | f32 | csst_ms_mbi_position |
| PV2_2 | -1.687802061938E-03 | | 0 | f32 | csst_ms_mbi_position |
| PV2_4 | 1.561587727533E-03 | | 0 | f32 | csst_ms_mbi_position |
| PV2_5 | -4.159618376671E-03 | | 0 | f32 | csst_ms_mbi_position |
| PV2_6 | 3.398895060382E-03 | | 0 | f32 | csst_ms_mbi_position |
| FGROUPNO | 1 | SCAMP field group label | | i8 | csst_ms_mbi_position |
| ASTIRMS1 | 0.000000000000E+00 | Astrom. dispersion RMS (intern., high S/N) | | f32 | csst_ms_mbi_position |
| ASTIRMS2 | 0.000000000000E+00 | Astrom. dispersion RMS (intern., high S/N) | | f32 | csst_ms_mbi_position |
| ASTRRMS1 | 6.458653303335E-06 | Astrom. dispersion RMS (ref., high S/N) | | f32 | csst_ms_mbi_position |
| ASTRRMS2 | 8.724734011714E-06 | Astrom. dispersion RMS (ref., high S/N) | | f32 | csst_ms_mbi_position |
| ASTINST | 1 | SCAMP astrometric instrument label | | i8 | csst_ms_mbi_position |
| FLXSCALE | 1.000000000000E+00 | SCAMP relative flux scale | | f32 | csst_ms_mbi_position |
| MAGZEROP | 0.00000000 | SCAMP zero-point | | f32 | csst_ms_mbi_position |
| PHOTIRMS | 0.00000000 | mag dispersion RMS (internal, high S/N) | | f32 | csst_ms_mbi_position |
| PHOTINST | 1 | SCAMP photometric instrument label | | i8 | csst_ms_mbi_position |
| PHOTLINK | F | True if linked to a photometric field | | bool | csst_ms_mbi_position |
| WCS_S | 0 | 0=done | | i8 | csst_ms_mbi_position |
| WCS_V | '2.0.4 ' | Version of WCS calibration | | str | csst_ms_mbi_position |
| WCS_P | 'default.scamp' | Configure file name of WCS | | str | csst_ms_mbi_position |
| WCS_TOL | '2022-12-30 18:32:46 PM' | Time of last wcs calibration | | str | csst_ms_mbi_position |
| keyword | value | comment | fallback_value | type | module |
|-----------|:--------------------------|-------------------------------|----------------|------|-------------------------|
| CALI_REF | 'GAIA ' | the reference database for calibration | | str | csst_ms_mbi_flux |
| ZP | 23.8435 | photometric zero point in magnitude | | f32 | csst_ms_mbi_flux |
| ZPRMS | 0.0101 | zpt rms of the matched objects | | f32 | csst_ms_mbi_flux |
| APER_R | 10 | (pixels) photo-aperture radius | | i8 | csst_ms_mbi_flux |
| FWHM | 2.147 | FWHM in pixel | | f32 | csst_ms_mbi_flux |
| RAOFF | -0.188 | median positional offset from GAIA, in arcsec | | f32 | csst_ms_mbi_flux |
| DECOFF | -0.1061 | median positional offset from GAIA, in arcsec | | f32 | csst_ms_mbi_flux |
| NSTAR | 49 | total number of stars detected | | i8 | csst_ms_mbi_flux |
| NMATCH | 25 | total number of matched stars in 2 arcsec | | i8 | csst_ms_mbi_flux |
| MDNCOL | 0.0 | median (BP-RP)_GAIA of matched stars | | f32 | csst_ms_mbi_flux |
| SKY | 0.0359 | (e-/s per pixel) | | f32 | csst_ms_mbi_flux |
| SKYRMS | 0.1766 | rms/pixel of the sky in unit of e-/s | | f32 | csst_ms_mbi_flux |
| MLIM | 21.83 | magnitude limiting of 5-sigma galaxy detection| | f32 | csst_ms_mbi_flux |
| FLUX_S | 0 | flux calibration status | | i8 | csst_ms_mbi_flux |
| FLUX_V | '1.3 ' | version of calibration code | | str | csst_ms_mbi_flux |
| FLUX_TOL= | '2022-12-30 18:36:05' | flux calibration operation time | | str | csst_ms_mbi_flux |