ASTROSAT CZTI

Data Quality Report

Orbit 19378

Creation date: 2024-06-27T18:02:07.555712
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_226T06_9000002864_19378cztM0_level2.evt modeM0/AS1A05_226T06_9000002864_19378cztM0_level2_quad_clean.evt
Size (bytes)422,795,52044,870,400
Size403.2 MB 42.8 MB
Events in quadrant A1,873,964287,634
Events in quadrant B2,031,311287,564
Events in quadrant C1,855,705272,352
Events in quadrant D6,777,809234,636

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A079741
B084111
C079491
D0228381

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A030
B040
C040
D040

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0780
B0780
C0780
D0780

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A3905170.435339%
B3905320.819462%
C3905180.460948%
D3905147337.720871%

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 3905 3905 0 0 0.00% 0.00%
B 3905 3905 15 15 0.38% 0.38%
C 3905 3905 0 0 0.00% 0.00%
D 3904 3904 1361 1361 34.86% 34.86%

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 0 226 4143 37.02 486 476 99.1
A 3 137 3781 33.36 486 476 99.1
A 12 194 3538 30.91 486 476 99.1
B 7 220 75526 810.39 480 469 92.6
B 3 64 15718 164.64 480 469 92.6
B 15 32 15133 158.33 480 469 92.6
C 14 238 71319 659.5 455 458 107.4
C 3 233 8800 77.64 455 458 107.4
C 13 61 3167 25.21 455 458 107.4
D 10 66 4754919 46917.74 417 406 101.3
D 11 176 182885 1800.71 417 406 101.3
D 7 238 118472 1165.08 417 406 101.3

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