ASTROSAT CZTI

Data Quality Report

Orbit 36032

Creation date: 2022-08-09T22:13:41.758676
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/AS1T04_069T01_9000005158_36032cztM0_level2.evt modeM0/AS1T04_069T01_9000005158_36032cztM0_level2_quad_clean.evt
Size (bytes)500,472,00079,755,840
Size477.3 MB 76.1 MB
Events in quadrant A2,805,495525,223
Events in quadrant B3,771,704504,384
Events in quadrant C3,296,082518,848
Events in quadrant D4,894,896465,907

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0117993
B0147752
C0131932
D0182252

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0400
B0400
C0400
D0400

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01180
B01180
C01180
D01180

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5728120.209497%
B57283586.250000%
C57281672.915503%
D57285088.868715%

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 9764 5730 0 0 0.00% 0.00%
B 9764 5729 303 303 3.10% 5.29%
C 9764 5730 123 123 1.26% 2.15%
D 9764 5730 492 492 5.04% 8.59%

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 83 175381 1288.83 676 664 135.6
A 13 6 14117 99.24 676 664 135.6
A 13 254 9480 65.03 676 664 135.6
B 5 236 961633 7587.83 652 634 126.6
B 5 255 124001 974.07 652 634 126.6
B 5 172 58241 454.85 652 634 126.6
C 15 214 238526 1587.64 644 647 149.8
C 9 187 217255 1445.68 644 647 149.8
C 0 10 210773 1402.42 644 647 149.8
D 12 227 1231926 7917.59 632 614 155.5
D 12 235 484681 3112.65 632 614 155.5
D 10 118 243530 1562.0 632 614 155.5

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