ASTROSAT CZTI

Data Quality Report

Orbit 59292

Creation date: 2026-09-12T17:11:25.716859
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_021T06_9000006606_59292cztM0_level2.fits modeM0/AS1A14_021T06_9000006606_59292cztM0_level2_quad_clean.evt
Size (bytes)2,011,481,280232,652,160
Size1.9 GB 221.9 MB
Events in quadrant A10,488,6551,706,798
Events in quadrant B16,091,3271,700,770
Events in quadrant C10,439,6991,647,067
Events in quadrant D35,973,378682,847

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0451034
B0608134
C0447594
D01199004

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A03840
B03840
C03840
D03840

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0170
B0170
C0170
D0170

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A189468634.555051%
B18947264713.970549%
C189475312.802554%
D189471190962.854278%

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 20581 18950 617 617 3.00% 3.26%
B 20582 18950 2029 2029 9.86% 10.71%
C 20582 18952 393 393 1.91% 2.07%
D 20582 18949 9836 9836 47.79% 51.91%

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 1314112 2680.01 2003 1952 489.6
A 7 64 645278 1313.96 2003 1952 489.6
A 15 233 548436 1116.16 2003 1952 489.6
B 4 236 5418040 13449.43 1897 1825 402.7
B 5 236 1493791 3704.82 1897 1825 402.7
B 4 201 385420 952.53 1897 1825 402.7
C 15 198 930845 1743.37 1960 1939 532.8
C 12 252 746780 1397.92 1960 1939 532.8
C 4 5 489905 915.82 1960 1939 532.8
D 12 110 27394775 60924.82 1564 1491 449.6
D 11 129 1598283 3551.39 1564 1491 449.6
D 12 2 329112 728.65 1564 1491 449.6

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