ASTROSAT CZTI

Data Quality Report

Orbit 04715

Creation date: 2024-06-27T14:45:56.063957
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_227T01_9000000592_04715cztM0_level2.evt modeM0/AS1G05_227T01_9000000592_04715cztM0_level2_quad_clean.evt
Size (bytes)193,651,20026,648,640
Size184.7 MB 25.4 MB
Events in quadrant A1,369,613153,149
Events in quadrant B1,432,000154,658
Events in quadrant C1,335,475154,218
Events in quadrant D1,538,170147,130

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A058512
B060121
C057511
D063401

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0110

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0560
B0560
C0560
D0560

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A2759582.102211%
B2759521.884741%
C2759351.268576%
D2759541.957231%

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 3799 2759 0 0 0.00% 0.00%
B 3799 2760 0 0 0.00% 0.00%
C 3799 2760 0 0 0.00% 0.00%
D 3799 2760 3 3 0.08% 0.11%

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 13 251 10548 141.07 349 341 72.4
A 8 15 8530 113.18 349 341 72.4
A 13 14 6071 79.19 349 341 72.4
B 14 167 19682 275.2 352 344 70.3
B 15 204 17404 242.78 352 344 70.3
B 4 80 12169 168.28 352 344 70.3
C 9 16 8076 96.02 339 340 80.6
C 13 61 2755 29.98 339 340 80.6
C 9 247 1983 20.39 339 340 80.6
D 2 63 144992 1755.84 337 327 82.4
D 2 234 43778 527.38 337 327 82.4
D 2 136 30916 371.27 337 327 82.4

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