ASTROSAT CZTI

Data Quality Report

Orbit 29382

Creation date: 2024-06-27T20:03:40.817395
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/AS1T03_280T01_9000004222_29382cztM0_level2.evt modeM0/AS1T03_280T01_9000004222_29382cztM0_level2_quad_clean.evt
Size (bytes)663,359,040110,831,040
Size632.6 MB 105.7 MB
Events in quadrant A3,506,120762,101
Events in quadrant B3,708,623781,219
Events in quadrant C3,879,813760,275
Events in quadrant D8,538,982582,224

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0170
B0180
C0180
D0180

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0145182
B0152092
C0158142
D0299052

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01380
B01380
C01380
D01380

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6741330.489542%
B6741600.890076%
C67411011.498294%
D6741181526.924789%

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 7966 6742 12 12 0.15% 0.18%
B 7966 6742 18 18 0.23% 0.27%
C 7966 6742 1 1 0.01% 0.01%
D 7966 6742 1672 1672 20.99% 24.80%

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 15 174 87109 494.33 885 872 174.5
A 13 254 13203 70.68 885 872 174.5
A 3 137 7738 39.35 885 872 174.5
B 0 229 79282 477.04 889 869 164.4
B 5 255 69672 418.57 889 869 164.4
B 0 156 22984 134.54 889 869 164.4
C 3 233 282269 1374.88 878 889 204.7
C 14 238 141596 687.52 878 889 204.7
C 2 114 16140 74.52 878 889 204.7
D 12 33 3983732 22216.35 767 749 179.3
D 1 52 1149445 6407.21 767 749 179.3
D 13 153 123179 682.89 767 749 179.3

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