ASTROSAT CZTI

Data Quality Report

Orbit 56710

Creation date: 2026-03-22T22:30:52.759571
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_083T06_9000006558_56710cztM0_level2.fits modeM0/AS1A14_083T06_9000006558_56710cztM0_level2_quad_clean.evt
Size (bytes)457,418,88085,161,600
Size436.2 MB 81.2 MB
Events in quadrant A3,694,103559,428
Events in quadrant B5,580,225563,519
Events in quadrant C3,688,840533,700
Events in quadrant D3,505,386505,148

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01220
B01220
C01220
D01220

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0110

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0154281
B0206681
C0152041
D0146961

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A59633475.819219%
B596376812.879423%
C59642113.537894%
D59642303.856472%

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 7078 5963 233 233 3.29% 3.91%
B 7078 5963 531 531 7.50% 8.90%
C 7079 5965 158 158 2.23% 2.65%
D 7079 5965 177 177 2.50% 2.97%

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 62 918680 5886.65 628 613 156.0
A 8 26 113561 724.22 628 613 156.0
A 4 95 91279 581.35 628 613 156.0
B 5 185 2912527 22602.04 603 583 128.8
B 10 247 133898 1034.77 603 583 128.8
B 2 249 52941 406.39 603 583 128.8
C 13 3 766322 4674.51 601 594 163.8
C 9 38 310461 1891.63 601 594 163.8
C 12 252 79616 482.4 601 594 163.8
D 2 249 585415 3414.66 605 576 171.3
D 8 240 179072 1042.17 605 576 171.3
D 6 239 68723 397.89 605 576 171.3

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