ASTROSAT CZTI

Data Quality Report

Orbit 59388

Creation date: 2026-09-19T02:19:35.420271
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_033T01_9000006608_59388cztM0_level2.fits modeM0/AS1A14_033T01_9000006608_59388cztM0_level2_quad_clean.evt
Size (bytes)564,099,840108,339,840
Size538.0 MB 103.3 MB
Events in quadrant A3,474,907719,163
Events in quadrant B5,621,229731,900
Events in quadrant C3,559,910700,903
Events in quadrant D7,646,836610,157

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01520
B01520
C01520
D01520

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0159462
B0218712
C0159682
D0280264

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A74511121.503154%
B74526789.098229%
C7452971.301664%
D74515967.998926%

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 8721 7451 34 34 0.39% 0.46%
B 8722 7452 399 399 4.57% 5.35%
C 8722 7453 25 25 0.29% 0.34%
D 8721 7451 431 431 4.94% 5.78%

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 14 238 121055 592.75 831 808 202.9
A 10 251 85881 419.36 831 808 202.9
A 3 245 15863 74.21 831 808 202.9
B 5 185 1530604 8821.04 806 777 173.4
B 5 236 548979 3160.95 806 777 173.4
B 0 157 75813 432.66 806 777 173.4
C 6 223 177906 788.83 823 815 224.5
C 12 241 45213 197.76 823 815 224.5
C 15 208 34030 147.95 823 815 224.5
D 12 110 4153705 18528.35 795 761 224.1
D 5 32 141654 628.59 795 761 224.1
D 2 31 72625 320.62 795 761 224.1

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

TCT plots

Parameter TCT0 TCT_healed
Tct