ASTROSAT CZTI

Data Quality Report

Orbit 07322

Creation date: 2024-06-27T15:18:26.453059
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_178T01_9000001006_07322cztM0_level2.evt modeM0/AS1A02_178T01_9000001006_07322cztM0_level2_quad_clean.evt
Size (bytes)436,060,80086,330,880
Size415.9 MB 82.3 MB
Events in quadrant A3,488,065544,452
Events in quadrant B3,233,067563,530
Events in quadrant C3,041,270546,488
Events in quadrant D3,016,117520,927

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0145723
B0137742
C0132342
D0133572

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0240
B0240
C0240
D0240

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A62872483.944648%
B6287921.463337%
C6287641.017974%
D6287620.986162%

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 8702 6288 71 71 0.82% 1.13%
B 8702 6287 4 4 0.05% 0.06%
C 8702 6289 4 4 0.05% 0.06%
D 8702 6288 11 11 0.13% 0.17%

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 13 240 207920 1296.31 783 767 159.8
A 8 15 179988 1121.52 783 767 159.8
A 14 111 82461 511.22 783 767 159.8
B 11 51 66351 437.22 796 780 150.0
B 0 214 38103 248.87 796 780 150.0
B 4 81 21112 135.57 796 780 150.0
C 9 68 39498 221.83 761 767 174.6
C 1 16 23490 130.14 761 767 174.6
C 14 234 6106 30.58 761 767 174.6
D 2 14 41556 221.72 757 737 184.1
D 12 233 38009 202.45 757 737 184.1
D 2 216 21289 111.63 757 737 184.1

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