ASTROSAT CZTI

Data Quality Report

Orbit 43559

Creation date: 2024-06-27T22:53:09.132273
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/AS1A05_174T01_9000005880_43559cztM0_level2.fits modeM0/AS1A05_174T01_9000005880_43559cztM0_level2_quad_clean.evt
Size (bytes)919,428,48076,034,880
Size876.8 MB 72.5 MB
Events in quadrant A5,133,323681,670
Events in quadrant B3,482,007709,652
Events in quadrant C13,799,863377,131
Events in quadrant D11,164,060118,456

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0110

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0197181
B0142671
C0449273
D0372291

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01200
B01200
C01200
D01200

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A58682814.788684%
B58691342.283183%
C5868472080.436264%
D5868585299.727335%

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 6973 5868 51 51 0.73% 0.87%
B 6974 5869 24 24 0.34% 0.41%
C 6972 5867 4483 4483 64.30% 76.41%
D 6972 5867 2430 2430 34.85% 41.42%

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 0 228 1182479 8411.14 686 673 140.5
A 10 83 625679 4448.29 686 673 140.5
A 15 222 385662 2740.04 686 673 140.5
B 3 25 221041 1630.87 688 667 135.1
B 0 199 120474 886.63 688 667 135.1
B 3 42 116905 860.21 688 667 135.1
C 15 142 5122353 56166.03 380 382 91.2
C 15 126 4681425 51330.94 380 382 91.2
C 15 158 1190117 13046.28 380 382 91.2
D 4 212 3654031 78262.06 146 139 46.7
D 4 216 3559303 76233.1 146 139 46.7
D 14 210 517465 11080.51 146 139 46.7

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