ASTROSAT CZTI

Data Quality Report

Orbit 58807

Creation date: 2026-08-11T00:33:50.221174
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_106T01_9000006596_58807cztM0_level2.fits modeM0/AS1A14_106T01_9000006596_58807cztM0_level2_quad_clean.evt
Size (bytes)615,686,40097,384,320
Size587.2 MB 92.9 MB
Events in quadrant A3,523,398680,261
Events in quadrant B4,529,781705,295
Events in quadrant C5,035,409580,601
Events in quadrant D9,161,061496,424

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0153750
B0183860
C0199400
D0321940

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01380
B01380
C01380
D01380

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6980741.060172%
B69793745.358934%
C697982411.806849%
D6979155722.309787%

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 6980 6980 30 30 0.43% 0.43%
B 6979 6979 195 195 2.79% 2.79%
C 6979 6979 422 422 6.05% 6.05%
D 6978 6978 1401 1401 20.08% 20.08%

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 10 251 210866 1068.32 789 768 196.7
A 15 233 73035 367.47 789 768 196.7
A 2 143 56910 285.47 789 768 196.7
B 2 136 492948 2938.25 771 739 167.5
B 4 171 208940 1242.86 771 739 167.5
B 8 128 200813 1194.35 771 739 167.5
C 15 198 1445086 7360.1 708 702 196.2
C 13 3 314426 1598.63 708 702 196.2
C 12 252 253030 1285.78 708 702 196.2
D 12 110 3887348 19265.53 705 675 201.7
D 11 129 1431826 7093.95 705 675 201.7
D 2 249 467343 2313.19 705 675 201.7

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

TCT plots

Parameter TCT0 TCT_healed
Tct