ASTROSAT CZTI

Data Quality Report

Orbit 36292

Creation date: 2022-06-15T05:34:08.995397
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/AS1A10_071T33_9000005186_36292cztM0_level2.evt modeM0/AS1A10_071T33_9000005186_36292cztM0_level2_quad_clean.evt
Size (bytes)383,803,20053,726,400
Size366.0 MB 51.2 MB
Events in quadrant A2,471,858325,180
Events in quadrant B3,387,985325,898
Events in quadrant C2,637,682321,335
Events in quadrant D2,789,260306,786

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0103933
B0133162
C0106992
D0115782

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01000
B01000
C01000
D01000

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0330
B0330
C0330
D0340

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A4954120.242229%
B49541553.128785%
C4954450.908357%
D4954280.565200%

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 7017 4955 3 3 0.04% 0.06%
B 7017 4955 76 76 1.08% 1.53%
C 7017 4955 35 35 0.50% 0.71%
D 7017 4955 25 25 0.36% 0.50%

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 168727 1425.83 583 573 117.9
A 9 143 17349 142.25 583 573 117.9
A 13 6 11413 91.92 583 573 117.9
B 4 171 604930 5405.52 577 561 111.8
B 5 172 157720 1405.64 577 561 111.8
B 5 236 127238 1133.01 577 561 111.8
C 15 214 209295 1568.22 567 572 133.1
C 0 10 168608 1262.52 567 572 133.1
C 0 207 30590 225.54 567 572 133.1
D 7 223 214070 1528.95 561 546 139.7
D 13 171 80780 574.52 561 546 139.7
D 1 20 80503 572.54 561 546 139.7

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