ASTROSAT CZTI

Data Quality Report

Orbit 14015

Creation date: 2024-06-27T16:49:10.608648
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/AS1G08_064T01_9000002070_14015cztM0_level2.evt modeM0/AS1G08_064T01_9000002070_14015cztM0_level2_quad_clean.evt
Size (bytes)574,427,520120,841,920
Size547.8 MB 115.2 MB
Events in quadrant A3,988,438772,634
Events in quadrant B4,113,731782,064
Events in quadrant C3,945,708779,738
Events in quadrant D4,784,652747,838

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0174613
B0178872
C0173262
D0197922

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01700
B01700
C01700
D01700

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A080
B080
C080
D080

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A8315720.865905%
B8315911.094408%
C8315420.505111%
D83151101.322910%

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 9116 8319 8 8 0.09% 0.10%
B 9116 8319 2 2 0.02% 0.02%
C 9116 8319 0 0 0.00% 0.00%
D 9116 8319 45 45 0.49% 0.54%

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 14 111 32292 153.87 997 976 203.5
A 4 2 29679 141.03 997 976 203.5
A 12 189 29379 139.56 997 976 203.5
B 0 189 60511 313.89 994 967 189.7
B 3 209 28527 145.28 994 967 189.7
B 0 214 24606 124.61 994 967 189.7
C 3 233 108216 468.04 981 983 229.1
C 13 61 7073 26.58 981 983 229.1
C 8 128 4808 16.7 981 983 229.1
D 1 52 368021 1569.15 966 942 233.9
D 13 189 249946 1064.42 966 942 233.9
D 8 195 220407 938.15 966 942 233.9

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