ASTROSAT CZTI

Data Quality Report

Orbit 08514

Creation date: 2024-06-27T15:33:44.246475
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/AS1G07_060T01_9000001200_08514cztM0_level2.evt modeM0/AS1G07_060T01_9000001200_08514cztM0_level2_quad_clean.evt
Size (bytes)517,570,56079,102,080
Size493.6 MB 75.4 MB
Events in quadrant A3,593,598472,386
Events in quadrant B4,327,451467,249
Events in quadrant C3,486,945473,564
Events in quadrant D3,752,832455,765

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01540
B01540
C01540
D01540

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0159483
B0179364
C0158102
D0167632

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A75632833.741901%
B75624566.030151%
C75631772.340341%
D75632953.900569%

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 8723 7563 9 9 0.10% 0.12%
B 8723 7564 109 109 1.25% 1.44%
C 8723 7565 0 0 0.00% 0.00%
D 8723 7564 103 103 1.18% 1.36%

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 5 16 50789 262.88 917 894 189.8
A 1 162 9401 44.82 917 894 189.8
A 0 226 8542 40.29 917 894 189.8
B 10 16 550908 3085.3 912 889 178.3
B 5 255 185557 1035.89 912 889 178.3
B 12 111 20545 110.26 912 889 178.3
C 13 61 6909 28.94 890 893 207.9
C 8 128 6013 24.63 890 893 207.9
C 8 222 4612 17.89 890 893 207.9
D 8 230 255352 1131.18 882 858 225.0
D 1 52 49983 218.35 882 858 225.0
D 13 105 41869 182.29 882 858 225.0

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