ASTROSAT CZTI

Data Quality Report

Orbit 54330

Creation date: 2025-10-13T19:06:35.111677
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_126T15_9000006516_54330cztM0_level2.fits modeM0/AS1A14_126T15_9000006516_54330cztM0_level2_quad_clean.evt
Size (bytes)536,221,44096,073,920
Size511.4 MB 91.6 MB
Events in quadrant A3,193,225667,617
Events in quadrant B3,228,873708,755
Events in quadrant C7,116,768491,670
Events in quadrant D5,771,555557,777

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01420
B01420
C01420
D01420

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0146831
B0147241
C0263531
D0221201

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A060
B060
C060
D060

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6929911.313321%
B6929881.270025%
C6930157722.756133%
D69305447.849928%

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 7594 6930 11 11 0.14% 0.16%
B 7594 6930 19 19 0.25% 0.27%
C 7595 6931 1539 1539 20.26% 22.20%
D 7595 6931 492 492 6.48% 7.10%

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 15 174 102560 562.19 734 714 181.2
A 5 243 77296 422.73 734 714 181.2
A 4 78 71307 389.67 734 714 181.2
B 5 172 65073 416.82 718 690 154.5
B 1 223 59247 379.11 718 690 154.5
B 10 247 46721 298.01 718 690 154.5
C 1 241 4119187 23303.59 642 634 176.7
C 12 252 126345 711.29 642 634 176.7
C 14 254 124766 702.36 642 634 176.7
D 15 108 1854675 9439.41 688 656 196.4
D 8 176 602954 3066.49 688 656 196.4
D 2 120 156277 792.32 688 656 196.4

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