ASTROSAT CZTI

Data Quality Report

Orbit 58383

Creation date: 2026-07-13T12:08:08.625134
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_045T01_9000006590_58383cztM0_level2.fits modeM0/AS1A14_045T01_9000006590_58383cztM0_level2_quad_clean.evt
Size (bytes)424,906,56094,858,560
Size405.2 MB 90.5 MB
Events in quadrant A3,380,405624,879
Events in quadrant B4,862,758645,134
Events in quadrant C3,078,305603,260
Events in quadrant D3,917,651559,761

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0143401
B0186161
C0136681
D0158972

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0110

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A62931392.208803%
B62935168.199587%
C6293701.112347%
D62921312.082009%

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 7393 6293 63 63 0.85% 1.00%
B 7393 6293 276 276 3.73% 4.39%
C 7393 6294 45 45 0.61% 0.71%
D 7392 6292 109 109 1.47% 1.73%

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 13 248 256512 1440.03 725 707 177.6
A 12 114 84993 474.48 725 707 177.6
A 12 80 73090 407.47 725 707 177.6
B 5 172 903031 5953.07 704 680 151.6
B 6 255 513056 3380.3 704 680 151.6
B 2 249 150354 987.44 704 680 151.6
C 4 5 179534 923.72 701 694 193.6
C 6 223 102713 526.93 701 694 193.6
C 7 2 15295 75.41 701 694 193.6
D 12 110 805789 4098.08 696 663 196.5
D 11 129 120888 611.94 696 663 196.5
D 2 249 87022 439.57 696 663 196.5

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