ASTROSAT CZTI

Data Quality Report

Orbit 47387

Creation date: 2024-07-03T01:50:56.186791
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/AS1A13_093T25_9000006324_47387cztM0_level2.fits modeM0/AS1A13_093T25_9000006324_47387cztM0_level2_quad_clean.evt
Size (bytes)455,316,480106,960,320
Size434.2 MB 102.0 MB
Events in quadrant A7,066,588695,974
Events in quadrant B3,257,636750,083
Events in quadrant C2,914,124707,671
Events in quadrant D3,128,082646,158

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0200
B0210
C0210
D0210

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0255492
B0136572
C0130292
D0138012

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A62884116.536260%
B6288520.826972%
C6288160.254453%
D6288490.779262%

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 7493 6288 212 212 2.83% 3.37%
B 7493 6289 10 10 0.13% 0.16%
C 7493 6289 6 6 0.08% 0.10%
D 7493 6288 40 40 0.53% 0.64%

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 10 83 3687954 24420.29 721 707 151.0
A 9 191 488182 3228.5 721 707 151.0
A 15 235 81070 532.24 721 707 151.0
B 5 255 103664 706.47 734 714 145.7
B 0 190 90751 617.85 734 714 145.7
B 0 200 40943 276.06 734 714 145.7
C 0 207 65144 381.71 714 718 168.8
C 12 249 26315 151.66 714 718 168.8
C 3 233 14458 81.41 714 718 168.8
D 2 249 131488 731.44 706 685 178.8
D 9 49 116343 646.75 706 685 178.8
D 2 165 45867 252.65 706 685 178.8

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