ASTROSAT CZTI

Data Quality Report

Orbit 03392

Creation date: 2024-06-27T14:28:25.092979
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/AS1G05_112T01_9000000452_03392cztM0_level2.evt modeM0/AS1G05_112T01_9000000452_03392cztM0_level2_quad_clean.evt
Size (bytes)807,200,640122,918,400
Size769.8 MB 117.2 MB
Events in quadrant A5,622,355731,985
Events in quadrant B5,923,063737,361
Events in quadrant C6,715,178724,202
Events in quadrant D5,376,620702,853

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A030
B020
C020
D020

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02420
B02420
C02420
D02420

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0250161
B0251841
C0280181
D0248865

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A119383522.948568%
B119382852.387335%
C119383152.638633%
D119372772.320516%

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 19380 11940 18 18 0.09% 0.15%
B 19380 11940 5 5 0.03% 0.04%
C 19380 11940 22 22 0.11% 0.18%
D 19380 11939 14 14 0.07% 0.12%

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 0 118 163653 564.25 1397 1363 287.6
A 15 170 35320 118.06 1397 1363 287.6
A 0 226 29362 97.35 1397 1363 287.6
B 15 204 304242 1102.94 1412 1377 274.6
B 14 167 79571 284.76 1412 1377 274.6
B 2 249 30651 106.61 1412 1377 274.6
C 9 144 1218685 3818.19 1359 1366 318.8
C 1 16 134288 416.92 1359 1366 318.8
C 12 4 15868 45.49 1359 1366 318.8
D 2 206 71441 211.08 1364 1320 332.2
D 13 223 51693 151.63 1364 1320 332.2
D 10 34 37173 107.93 1364 1320 332.2

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