ASTROSAT CZTI

Data Quality Report

Orbit 58322

Creation date: 2026-07-11T01:00:02.312397
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_58322cztM0_level2.fits modeM0/AS1A14_044T03_9000006588_58322cztM0_level2_quad_clean.evt
Size (bytes)452,424,96095,028,480
Size431.5 MB 90.6 MB
Events in quadrant A3,602,988629,566
Events in quadrant B5,962,807600,393
Events in quadrant C3,135,166618,708
Events in quadrant D3,541,506575,975

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0200
B0210
C0210
D0210

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0151422
B0221432
C0141142
D0150372

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A64901532.357473%
B649097415.007704%
C6490490.755008%
D6490791.217257%

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 7655 6491 80 80 1.05% 1.23%
B 7655 6491 671 671 8.77% 10.34%
C 7655 6491 42 42 0.55% 0.65%
D 7655 6491 70 70 0.91% 1.08%

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 0 12 274468 1542.98 714 697 177.4
A 4 238 130861 733.61 714 697 177.4
A 12 114 83773 468.22 714 697 177.4
B 10 128 1879776 13182.62 666 642 142.5
B 2 249 609066 4268.25 666 642 142.5
B 5 185 505468 3541.49 666 642 142.5
C 6 223 116212 602.54 699 695 191.7
C 9 38 114775 595.04 699 695 191.7
C 6 13 49018 252.05 699 695 191.7
D 11 129 307463 1572.22 688 659 195.1
D 8 160 148133 755.73 688 659 195.1
D 11 176 109446 557.48 688 659 195.1

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