ASTROSAT CZTI

Data Quality Report

Orbit 59329

Creation date: 2026-09-15T03:09:06.676137
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_59329cztM0_level2.fits modeM0/AS1A14_021T06_9000006606_59329cztM0_level2_quad_clean.evt
Size (bytes)527,293,44097,300,800
Size502.9 MB 92.8 MB
Events in quadrant A3,693,957666,413
Events in quadrant B5,882,727651,434
Events in quadrant C3,393,649635,378
Events in quadrant D6,022,134521,237

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0160552
B0221812
C0151972
D0224812

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01360
B01360
C01360
D01360

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A090
B090
C090
D090

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A67711051.550731%
B677288813.112817%
C67721211.786769%
D677295414.087419%

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 7586 6772 52 52 0.69% 0.77%
B 7587 6773 638 638 8.41% 9.42%
C 7587 6773 88 88 1.16% 1.30%
D 7587 6773 842 842 11.10% 12.43%

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 7 64 540903 3032.11 725 707 178.2
A 10 251 74797 415.86 725 707 178.2
A 10 143 67269 373.61 725 707 178.2
B 4 236 2050127 14031.75 695 670 146.1
B 4 171 560946 3835.97 695 670 146.1
B 10 31 108846 740.63 695 670 146.1
C 3 242 188693 955.79 715 707 196.7
C 6 13 140595 711.24 715 707 196.7
C 4 5 80220 404.27 715 707 196.7
D 12 2 1376198 7261.89 672 640 189.4
D 12 110 1262888 6663.7 672 640 189.4
D 2 249 523243 2758.94 672 640 189.4

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