ASTROSAT CZTI

Data Quality Report

Orbit 07383

Creation date: 2024-06-27T15:19:09.592127
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/AS1G06_117T01_9000001012_07383cztM0_level2.evt modeM0/AS1G06_117T01_9000001012_07383cztM0_level2_quad_clean.evt
Size (bytes)515,007,36099,385,920
Size491.1 MB 94.8 MB
Events in quadrant A4,613,756611,390
Events in quadrant B3,527,625650,659
Events in quadrant C3,326,277647,852
Events in quadrant D3,651,516609,435

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0260
B0260
C0260
D0260

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0185143
B0153002
C0147452
D0158752

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01420
B01420
C01420
D01420

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A70513294.666005%
B7051871.233868%
C7051620.879308%
D7051981.389874%

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 9571 7053 201 201 2.10% 2.85%
B 9571 7053 4 4 0.04% 0.06%
C 9571 7053 1 1 0.01% 0.01%
D 9571 7053 28 28 0.29% 0.40%

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 15 239 1199119 7027.91 839 820 170.5
A 15 234 150443 877.53 839 820 170.5
A 0 23 22785 128.82 839 820 170.5
B 0 214 94189 567.96 867 847 164.3
B 4 81 47857 286.04 867 847 164.3
B 12 111 16787 96.99 867 847 164.3
C 1 16 18125 88.71 844 850 194.7
C 12 4 7247 32.85 844 850 194.7
C 10 22 6771 30.4 844 850 194.7
D 14 34 188856 917.9 833 804 204.9
D 13 137 162879 791.11 833 804 204.9
D 1 52 49387 237.14 833 804 204.9

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