ASTROSAT CZTI

Data Quality Report

Orbit 22389

Creation date: 2024-06-27T18:40:10.061688
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/AS1A07_007T04_9000003310_22389cztM0_level2.evt modeM0/AS1A07_007T04_9000003310_22389cztM0_level2_quad_clean.evt
Size (bytes)475,387,20097,496,640
Size453.4 MB 93.0 MB
Events in quadrant A3,115,379641,044
Events in quadrant B3,286,333644,540
Events in quadrant C3,181,182617,502
Events in quadrant D4,374,467597,990

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0136632
B0140122
C0136982
D0175594

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0130
C0130
D0130

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6471540.834492%
B6471661.019935%
C64711251.931695%
D64702403.709428%

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 7566 6471 0 0 0.00% 0.00%
B 7566 6471 2 2 0.03% 0.03%
C 7566 6471 8 8 0.11% 0.12%
D 7565 6470 166 166 2.19% 2.57%

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 3 1 10081 57.57 806 788 161.4
A 13 254 8919 50.37 806 788 161.4
A 0 226 7138 39.34 806 788 161.4
B 0 190 45334 293.77 801 781 151.7
B 6 36 42531 275.29 801 781 151.7
B 0 228 18558 117.22 801 781 151.7
C 14 238 121642 672.7 775 781 179.7
C 0 10 35387 192.61 775 781 179.7
C 13 61 5480 26.15 775 781 179.7
D 1 52 1188825 6297.7 782 760 188.7
D 12 227 96823 509.21 782 760 188.7
D 7 38 58765 307.47 782 760 188.7

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