ASTROSAT CZTI

Data Quality Report

Orbit 07785

Creation date: 2024-06-27T15:23:58.180878
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/AS1G06_169T01_9000001070_07785cztM0_level2.evt modeM0/AS1G06_169T01_9000001070_07785cztM0_level2_quad_clean.evt
Size (bytes)445,331,52086,941,440
Size424.7 MB 82.9 MB
Events in quadrant A3,017,219552,086
Events in quadrant B3,238,534564,589
Events in quadrant C3,026,138546,658
Events in quadrant D3,762,746515,752

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0250
B0250
C0250
D0250

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0132863
B0138512
C0133622
D0153002

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A651490.138164%
B6514240.368437%
C651490.138164%
D6514951.458397%

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 8934 6516 0 0 0.00% 0.00%
B 8934 6516 9 9 0.10% 0.14%
C 8934 6516 0 0 0.00% 0.00%
D 8934 6516 71 71 0.79% 1.09%

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 7320 40.92 783 766 160.2
A 12 194 6643 36.7 783 766 160.2
A 13 254 3985 20.1 783 766 160.2
B 0 219 28179 182.87 793 775 149.9
B 4 173 27869 180.8 793 775 149.9
B 4 81 26091 168.94 793 775 149.9
C 12 16 26182 143.43 764 767 177.2
C 12 4 13866 73.92 764 767 177.2
C 1 16 6193 30.62 764 767 177.2
D 1 52 489677 2653.21 751 728 184.3
D 13 104 125603 677.61 751 728 184.3
D 1 239 66461 356.69 751 728 184.3

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