ASTROSAT CZTI

Data Quality Report

Orbit 47847

Creation date: 2024-08-03T04:15:49.240734
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/AS1T05_216T01_9000006356_47847cztM0_level2.fits modeM0/AS1T05_216T01_9000006356_47847cztM0_level2_quad_clean.evt
Size (bytes)674,910,72098,896,320
Size643.6 MB 94.3 MB
Events in quadrant A7,108,775698,886
Events in quadrant B3,544,618724,733
Events in quadrant C3,183,617702,302
Events in quadrant D10,617,756392,983

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0130
C0130
D0130

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01380
B01380
C01380
D01380

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0255982
B0155672
C0146302
D0361818

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A68172854.180725%
B68171271.862990%
C68171061.554936%
D6816290242.576291%

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 7707 6817 112 112 1.45% 1.64%
B 7707 6817 52 52 0.67% 0.76%
C 7707 6817 84 84 1.09% 1.23%
D 7705 6815 2852 2852 37.01% 41.85%

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 4226693 27943.95 726 710 151.2
A 14 248 46999 306.08 726 710 151.2
A 13 248 14230 89.4 726 710 151.2
B 5 255 210042 1446.33 728 706 144.7
B 0 186 119908 823.58 728 706 144.7
B 5 29 91503 627.33 728 706 144.7
C 14 254 200815 1171.09 720 724 170.9
C 12 2 136050 792.03 720 724 170.9
C 3 233 30719 175.55 720 724 170.9
D 2 165 6610863 44838.3 575 557 147.4
D 12 2 664213 4501.64 575 557 147.4
D 2 37 611277 4142.57 575 557 147.4

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