ASTROSAT CZTI

Data Quality Report

Orbit 05683

Creation date: 2024-06-27T14:57:55.788790
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_115T01_9000000734_05683cztM0_level2.evt modeM0/AS1G06_115T01_9000000734_05683cztM0_level2_quad_clean.evt
Size (bytes)624,274,560102,821,760
Size595.4 MB 98.1 MB
Events in quadrant A4,218,103617,779
Events in quadrant B4,949,466613,191
Events in quadrant C4,531,772621,082
Events in quadrant D4,560,393601,636

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A020233974
B0220981125
C020838970
D0212101014

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0180
B0180
C0180
D0180

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02027
B02044
C020410
D02044

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A9503640.673472%
B94721381.456926%
C9507730.767855%
D9523830.871574%

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 11786 9902 0 0 0.00% 0.00%
B 11786 9887 30 30 0.25% 0.30%
C 11786 9896 0 0 0.00% 0.00%
D 11786 9907 19 19 0.16% 0.19%

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 6 12780 52.38 1093 1066 223.6
A 12 194 10567 42.49 1093 1066 223.6
A 0 226 10278 41.2 1093 1066 223.6
B 15 204 301086 1428.29 1097 1071 210.1
B 4 81 211441 1001.52 1097 1071 210.1
B 0 214 57676 269.48 1097 1071 210.1
C 1 16 355374 1435.51 1066 1069 246.8
C 13 61 8794 31.3 1066 1069 246.8
C 8 128 7057 24.26 1066 1069 246.8
D 8 195 117690 445.72 1067 1031 261.7
D 2 152 98131 370.99 1067 1031 261.7
D 12 233 95396 360.54 1067 1031 261.7

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