ASTROSAT CZTI

Data Quality Report

Orbit 29156

Creation date: 2024-06-27T20:00:54.995155
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_099T01_9000004184_29156cztM0_level2.evt modeM0/AS1A10_099T01_9000004184_29156cztM0_level2_quad_clean.evt
Size (bytes)610,505,280109,224,000
Size582.2 MB 104.2 MB
Events in quadrant A3,833,633704,344
Events in quadrant B4,133,016717,033
Events in quadrant C3,902,250684,852
Events in quadrant D6,087,981655,755

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0150
B0150
C0150
D0150

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01600
B01600
C01600
D01600

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0165022
B0173352
C0165742
D0235402

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A7855340.432845%
B78551391.769574%
C78551141.451305%
D78555146.543603%

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 9345 7857 0 0 0.00% 0.00%
B 9345 7857 6 6 0.06% 0.08%
C 9345 7857 0 0 0.00% 0.00%
D 9345 7857 209 209 2.24% 2.66%

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 15291 71.74 992 972 199.6
A 3 137 9773 44.09 992 972 199.6
A 0 226 8469 37.56 992 972 199.6
B 0 190 92796 485.14 985 959 189.3
B 10 246 55134 286.19 985 959 189.3
B 0 183 48788 252.66 985 959 189.3
C 14 238 161248 717.16 949 956 223.5
C 2 114 18872 80.16 949 956 223.5
C 14 254 15117 63.36 949 956 223.5
D 1 52 1597829 7263.51 929 903 219.9
D 8 195 811857 3688.57 929 903 219.9
D 10 33 59610 267.02 929 903 219.9

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