ASTROSAT CZTI

Data Quality Report

Orbit 28934

Creation date: 2024-06-27T19:58:13.591893
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/AS1A10_082T04_9000004150_28934cztM0_level2.evt modeM0/AS1A10_082T04_9000004150_28934cztM0_level2_quad_clean.evt
Size (bytes)305,395,20059,702,400
Size291.2 MB 56.9 MB
Events in quadrant A1,910,292392,902
Events in quadrant B1,974,631404,791
Events in quadrant C1,995,535385,951
Events in quadrant D3,116,933363,137

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0760
B0760
C0760
D0760

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A080171
B082101
C082501
D0117962

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A3686401.085187%
B3686571.546392%
C36861223.309821%
D36852927.924016%

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 4940 3686 0 0 0.00% 0.00%
B 4940 3686 1 1 0.02% 0.03%
C 4940 3686 0 0 0.00% 0.00%
D 4939 3685 240 240 4.86% 6.51%

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 13 254 6086 56.33 493 484 99.4
A 13 6 6084 56.31 493 484 99.4
A 3 137 4719 42.59 493 484 99.4
B 10 245 20570 213.43 492 480 94.1
B 5 255 15847 163.25 492 480 94.1
B 12 111 10986 111.61 492 480 94.1
C 14 238 82851 741.38 475 479 111.1
C 3 233 40241 357.87 475 479 111.1
C 2 114 8662 73.65 475 479 111.1
D 8 195 1310804 11773.36 467 454 111.3
D 1 52 20703 181.94 467 454 111.3
D 2 234 14230 123.78 467 454 111.3

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