L1-MBI Data model

File: *_{img/wht/flg}_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

Header of csst_ms_mbi_instrument

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

Header of csst_ms_mbi_distortion

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

192.1940713422841

f32

csst_ms_mbi_distortion

DEC_CEN

26.72643742371229

the center of detector in dec

26.72643742371229

f32

csst_ms_mbi_distortion

DIST_V

‘1.0 ‘

version of distortion

‘1.0’

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

DIST_S

0

0=done 1=wrong

1

i8

csst_ms_mbi_distortion

Header of csst_ms_mbi_position

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

Header of csst_ms_mbi_flux

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

File: *_cat.fits

File contents

HDU

data

note

HDU0

None

PrimaryHDU

HDU1

Table

ImageHDU

HDU0

Header of photometry

keyword

value

comment

fallback_value

type

module

APERSIZE

‘3,4,5,6,8,10,13,16,20,25,30,40,’

aperture radii in pixels

str

csst_ms_mbi_photometry

NS_APER

75

number of stars used in aperture correction

i8

csst_ms_mbi_photometry

APCOR0

-0.06074262037873268

mag correction for aperture #0

f32

csst_ms_mbi_photometry

APERR0

0.0

mag correction error for aperture #0

f32

csst_ms_mbi_photometry

APCOR1

-0.01975813694298267

mag correction for aperture #1

f32

csst_ms_mbi_photometry

APERR1

0.0

mag correction error for aperture #1

f32

csst_ms_mbi_photometry

APCOR2

0.0

mag correction for aperture #2

f32

csst_ms_mbi_photometry

APERR2

0.0

mag correction error for aperture #2

f32

csst_ms_mbi_photometry

APCOR3

0.01290098764002323

mag correction for aperture #3

f32

csst_ms_mbi_photometry

APERR3

0.0

mag correction error for aperture #3

f32

csst_ms_mbi_photometry

APCOR4

0.02804811112582684

mag correction for aperture #4

f32

csst_ms_mbi_photometry

APERR4

0.0

mag correction error for aperture #4

f32

csst_ms_mbi_photometry

APCOR5

0.03705496713519096

mag correction for aperture #5

f32

csst_ms_mbi_photometry

APERR5

0.0

mag correction error for aperture #5

f32

csst_ms_mbi_photometry

APCOR6

0.04462624341249466

mag correction for aperture #6

f32

csst_ms_mbi_photometry

APERR6

0.0

mag correction error for aperture #6

f32

csst_ms_mbi_photometry

APCOR7

0.05059236660599709

mag correction for aperture #7

f32

csst_ms_mbi_photometry

APERR7

0.0

mag correction error for aperture #7

f32

csst_ms_mbi_photometry

APCOR8

0.05710481852293015

mag correction for aperture #8

f32

csst_ms_mbi_photometry

APERR8

0.0

mag correction error for aperture #8

f32

csst_ms_mbi_photometry

APCOR9

0.06682745367288589

mag correction for aperture #9

f32

csst_ms_mbi_photometry

APERR9

0.0

mag correction error for aperture #9

f32

csst_ms_mbi_photometry

APCOR10

0.07620415091514587

mag correction for aperture #10

f32

csst_ms_mbi_photometry

APERR10

0.0

mag correction error for aperture #10

f32

csst_ms_mbi_photometry

APCOR11

0.0952027440071106

mag correction for aperture #11

f32

csst_ms_mbi_photometry

APERR11

0.0

mag correction error for aperture #11

f32

csst_ms_mbi_photometry

HIERARCH ns_HYBRID

328

number of stars used in HYBRID correction

i8

csst_ms_mbi_photometry

HYBCOR

0.0498337559401989

mag correction for HYBRID

f32

csst_ms_mbi_photometry

HYBERR

0.000711286964798456

mag correction error

f32

csst_ms_mbi_photometry

NS_PSF

306

number of stars used in PSF correction

i8

csst_ms_mbi_photometry

PSFCOR

-0.00268870708532631

mag correction for PSF

f32

csst_ms_mbi_photometry

PSFERR

0.000903990056504255

mag correction error

f32

csst_ms_mbi_photometry

NS_MODEL

324

number of stars used in MODEL correction

i8

csst_ms_mbi_photometry

MODCOR

0.04189466685056686

mag correction for MODEL

f32

csst_ms_mbi_photometry

MODERR

0.000894258863834524

mag correction error

f32

csst_ms_mbi_photometry

HDU1

File: *_psf.fits

File contents

HDU

data

note

HDU0

None

PrimaryHDU

HDU1

Table

ImageHDU

HDU0

Header

keyword

value

comment

fallback_value

type

module

SIMPLE

True

Fits standard

True

bool

csst_ooc_psf_mbi

HDU1

Header of csst_ooc_psf_mbi

keyword

value

comment

fallback_value

type

module

LOADED

579

Number of loaded sources

I8

csst_ooc_psf_mbi

ACCEPTED

573

Number of accepted sources

I8

csst_ooc_psf_mbi

CHI2

1.12832649

Final reduced chi2

f32

csst_ooc_psf_mbi

POLNAXIS

2

Number of context parameters

I8

csst_ooc_psf_mbi

POLGRP1

1

Polynom group for this context parameter

I8

csst_ooc_psf_mbi

POLNAME1

‘XWIN_IMAGE’

Name of this context parameter

Str

csst_ooc_psf_mbi

POLZERO1

4607.403434

Offset value for this context parameter

f32

csst_ooc_psf_mbi

POLSCAL1

9161.359825

Scale value for this context parameter

f32

csst_ooc_psf_mbi

POLGRP2

1

Polynom group for this context parameter

I8

csst_ooc_psf_mbi

POLNAME2

‘YWIN_IMAGE’

Name of this context parameter

Str

csst_ooc_psf_mbi

POLZERO2

4631.62895

Offset value for this context parameter

f32

csst_ooc_psf_mbi

POLSCAL2

9174.347872

Scale value for this context parameter

f32

csst_ooc_psf_mbi

POLNGRP

1

Number of context groups

I8

csst_ooc_psf_mbi

POLDEG1

2

Polynom degree for this context group

I8

csst_ooc_psf_mbi

PSF_FWHM

2.31607056

PSF FWHM in image pixels

f32

csst_ooc_psf_mbi

PSF_SAMP

0.49278098

Sampling step of the PSF data in image pixels

f32

csst_ooc_psf_mbi

PSFNAXIS

3

Dimensionality of the PSF data

I8

csst_ooc_psf_mbi

PSFAXIS1

71

Number of element along this axis

I8

csst_ooc_psf_mbi

PSFAXIS2

71

Number of element along this axis

I8

csst_ooc_psf_mbi

PSFAXIS3

6

Number of element along this axis

I8

csst_ooc_psf_mbi

Header of csst_ooc_psf_strategy_crds

keyword

value

comment

fallback_value

type

module

USEAFTER

‘2028-07-22T18:52:33’

date and time after the reference files will be used. (YYYY-MM-DDThh:mm:ss)

str

csst_ooc_psf_strategy_crds

OBSSTART

‘2028-07-22T18:52:33’

UTC date and time of start of first observation (YYYY-MM-DDThh:mm:ss)

str

csst_ooc_psf_strategy_crds

OBSEND

‘2028-07-23T17:54:27’

UTC date and time of end of last observation (YYYY-MM-DDThh:mm:ss)

str

csst_ooc_psf_strategy_crds

EXPTYPE

‘SCI’

type of exposes used to create the reference file (‘SCI’or ‘OOC’)

str

csst_ooc_psf_strategy_crds

COMBINE_N

135

number of exposes used to create the reference file.

I8

csst_ooc_psf_strategy_crds

BREAPHAS

‘hot’

phase of breathing effect, which is the focus varies over orbital time
scales due to thermal changes. (‘hot’, ‘cold’. ‘none’)

str

csst_ooc_psf_strategy_crds

TEMP_PM

20.72563452

average temperature surrounding the primary mirror (in K)

f32

csst_ooc_psf_strategy_crds

TEMP_SM

20.72563452

average temperature surrounding the secondary mirror (in K)

f32

csst_ooc_psf_strategy_crds

TEMP_TM

20.72563452

average temperature surrounding the tertiary mirror (in K)

f32

csst_ooc_psf_strategy_crds

LFOCUST

‘2028-07-22T18:52:33’

last focus (AM1 or AM2) time (YYYY-MM-DDThh:mm:ss)

str

csst_ooc_psf_strategy_crds

P1_FOCUS

28025.63452

parameter 1 of focal length calculated from the positions ofthe focus
adjustment mechanism (FAM) and the secondary mirror (in mm)

f32

csst_ooc_psf_strategy_crds

P2_ FOCUS

28025.63452

parameter 2 of focal length (in mm)

f32

csst_ooc_psf_strategy_crds

P3_ FOCUS

28025.63452

parameter 3 of focal length (in mm)

f32

csst_ooc_psf_strategy_crds

P4_ FOCUS

28025.63452

parameter 4 of focal length (in mm)

f32

csst_ooc_psf_strategy_crds

P5_ FOCUS

28025.63452

parameter 5 of focal length (in mm)

f32

csst_ooc_psf_strategy_crds

P6_ FOCUS

28025.63452

parameter 6 of focal length (in mm)

f32

csst_ooc_psf_strategy_crds

FSM_STAT

T

working state of fast-steering mirror (FSM)

bool

csst_ooc_psf_strategy_crds