ASTROSAT CZTI

Data Quality Report

Orbit 07062

Creation date: 2024-06-27T15:15:05.951129
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/AS1A02_155T01_9000000966_07062cztM0_level2.evt modeM0/AS1A02_155T01_9000000966_07062cztM0_level2_quad_clean.evt
Size (bytes)427,786,56080,403,840
Size408.0 MB 76.7 MB
Events in quadrant A2,829,360508,121
Events in quadrant B2,876,417523,841
Events in quadrant C3,654,335502,642
Events in quadrant D3,194,963488,224

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120882
B0121611
C0146521
D0130731

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01200
B01200
C01200
D01200

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5893160.271509%
B5893220.373324%
C58932293.885966%
D5893290.492109%

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 7153 5894 0 0 0.00% 0.00%
B 7153 5894 0 0 0.00% 0.00%
C 7153 5894 186 186 2.60% 3.16%
D 7153 5894 15 15 0.21% 0.25%

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 40139 271.7 720 706 145.1
A 8 15 11032 71.15 720 706 145.1
A 13 14 7236 44.99 720 706 145.1
B 0 214 32632 233.14 728 711 136.9
B 0 187 14228 98.72 728 711 136.9
B 12 111 12783 88.17 728 711 136.9
C 4 254 895932 5458.29 706 709 164.0
C 13 61 5489 29.14 706 709 164.0
C 4 238 4311 21.96 706 709 164.0
D 8 195 330438 1915.11 709 688 172.2
D 12 233 110218 636.12 709 688 172.2
D 7 55 21468 120.69 709 688 172.2

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