ASTROSAT CZTI

Data Quality Report

Orbit 10762

Creation date: 2024-06-27T16:03:31.978518
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_051T01_9000001550_10762cztM0_level2.evt modeM0/AS1G07_051T01_9000001550_10762cztM0_level2_quad_clean.evt
Size (bytes)1,070,159,040130,576,320
Size1020.6 MB 124.5 MB
Events in quadrant A6,262,221793,252
Events in quadrant B9,534,176783,199
Events in quadrant C5,629,158804,268
Events in quadrant D10,128,620697,363

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02580
B02580
C02580
D02580

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0267453
B0366549
C0257686
D0386948

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A126611731.366401%
B1265910838.555178%
C126591010.797851%
D12659135210.680149%

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 13886 12661 30 30 0.22% 0.24%
B 13886 12662 588 588 4.23% 4.64%
C 13886 12663 0 0 0.00% 0.00%
D 13886 12663 1106 1106 7.96% 8.73%

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 15 239 378403 1263.72 1471 1436 298.3
A 15 174 132828 440.47 1471 1436 298.3
A 13 248 41300 133.64 1471 1436 298.3
B 4 239 2012021 7235.56 1444 1408 277.9
B 0 85 1666333 5991.54 1444 1408 277.9
B 0 214 77828 275.01 1444 1408 277.9
C 13 61 10717 27.63 1440 1446 335.5
C 12 4 6659 15.54 1440 1446 335.5
C 8 222 6181 14.11 1440 1446 335.5
D 10 157 2892871 8780.22 1367 1330 329.3
D 1 52 844770 2561.12 1367 1330 329.3
D 8 195 462933 1401.67 1367 1330 329.3

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