ASTROSAT CZTI

Data Quality Report

Orbit 58299

Creation date: 2026-07-07T20:36:12.210858
Switch to: Orbit-wise | Merged OBSID-wise
web.py, SVN revision $Rev$

Source files: Data quality report (detailed, human readable) | Data quality report (concise, machine readable)

Observation information


Basic statistics of files

Param Original file Final file
FilenamemodeM0/AS1A14_044T03_9000006588_58299cztM0_level2.fits modeM0/AS1A14_044T03_9000006588_58299cztM0_level2_quad_clean.evt
Size (bytes)825,039,36075,510,720
Size786.8 MB 72.0 MB
Events in quadrant A3,251,518652,882
Events in quadrant B15,041,607183,765
Events in quadrant C7,742,196375,823
Events in quadrant D3,961,945586,929

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01400
B01400
C01400
D01400

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0148970
B0494530
C0280770
D0164640

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6984460.658648%
B6985549878.711525%
C6985277839.770938%
D6985851.216893%

Noise dominated fraction

Noise dominated data is calculated using 1-second bins in cleaned event files. If a bin has >2000 counts, and if more than 50% of those come from <1% of pixels, then it is considered to be noise-dominated and hence unusable.

Quadrant # 1 sec bins Bins with >0 counts Bins with >2000 counts High rate bins dominated by noise Noise dominated (total time) Noise dominated (detector-on time) Marked lightcurve
A 6984 6984 33 33 0.47% 0.47%
B 6984 6984 4957 4957 70.98% 70.98%
C 6985 6985 1336 1336 19.13% 19.13%
D 6985 6985 73 73 1.05% 1.05%

Top noisy pixels

Top three noisy pixels from each quadrant. If the there are fewer than three noisy pixels in the level2.evt file, extra rows are filled as -1

Pixel properties Quadrant properties
Quadrant DetID PixID Counts Sigma Mean Median Sigma
A 3 245 77123 406.94 751 730 187.7
A 10 251 66741 351.64 751 730 187.7
A 2 143 41902 219.32 751 730 187.7
B 10 128 11406867 125500.28 419 406 90.9
B 2 249 797301 8767.89 419 406 90.9
B 3 238 507189 5575.91 419 406 90.9
C 15 199 4943318 36337.76 493 489 136.0
C 12 249 393609 2890.07 493 489 136.0
C 4 5 215215 1578.58 493 489 136.0
D 11 129 286245 1379.51 730 698 207.0
D 12 110 172707 831.0 730 698 207.0
D 12 3 132105 634.84 730 698 207.0

Detector plane histogram (DPH)

Histogram calculated using DETX and DETY for each event in the final _common_clean file

Quadrant A Quadrant B
Quadrant D Quadrant C

Count rate plots and images

Plot type Count rate plots Images
Comparison with Poisson distribution
Blue bars denote a histogram of data divided into 1 sec bins.
Red curve is a Poisson curve with rate = median count rate of data.
Quadrant-wise count rates
Data is divided into 100 sec bins
Module-wise count rates for Quadrant A
Data is divided into 100 sec bins
Module-wise count rates for Quadrant B
Data is divided into 100 sec bins
Module-wise count rates for Quadrant C
Data is divided into 100 sec bins
Module-wise count rates for Quadrant D
Data is divided into 100 sec bins

Housekeeping plots

Parameter Plot
CZT HV Monitor
D_VDD
Temperature 1
Veto HV Monitor
Veto LLD
Alpha Counter
_CPM_Rate
CZT Counter
+2.5 Volts monitor
+5 Volts monitor
_ROLL_ROT
_Roll_DEC
_Roll_RA
Veto Counter