ASTROSAT CZTI

Data Quality Report

Orbit 06949

Creation date: 2024-06-27T15:13:33.530130
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/AS1A02_103T01_9000000950_06949cztM0_level2.evt modeM0/AS1A02_103T01_9000000950_06949cztM0_level2_quad_clean.evt
Size (bytes)174,144,96016,591,680
Size166.1 MB 15.8 MB
Events in quadrant A1,211,69282,367
Events in quadrant B1,330,73681,820
Events in quadrant C1,197,87781,759
Events in quadrant D1,365,29279,902

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0500
B0500
C0500
D0500

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A060
B060
C060
D070

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A050521
B054161
C050141
D055511

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A244180.327735%
B2441120.491602%
C244110.040967%
D2441220.901270%

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 2441 2441 0 0 0.00% 0.00%
B 2441 2441 0 0 0.00% 0.00%
C 2441 2441 0 0 0.00% 0.00%
D 2441 2441 20 20 0.82% 0.82%

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 3079 41.97 314 308 66.0
A 12 194 2984 40.53 314 308 66.0
A 13 14 1770 22.15 314 308 66.0
B 0 228 81624 1325.6 313 306 61.3
B 4 81 12408 197.28 313 306 61.3
B 12 111 5343 82.11 313 306 61.3
C 7 220 2725 33.51 305 306 72.2
C 10 22 2712 33.33 305 306 72.2
C 13 61 2407 29.11 305 306 72.2
D 1 20 66986 882.66 306 298 75.6
D 8 195 49768 654.77 306 298 75.6
D 2 136 27912 365.49 306 298 75.6

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