ASTROSAT CZTI

Data Quality Report

Orbit 17363

Creation date: 2024-06-27T17:35:29.987706
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/AS1A05_165T12_9000002562_17363cztM0_level2.evt modeM0/AS1A05_165T12_9000002562_17363cztM0_level2_quad_clean.evt
Size (bytes)1,263,600,000247,564,800
Size1.2 GB 236.1 MB
Events in quadrant A8,636,7791,579,204
Events in quadrant B8,803,4461,603,296
Events in quadrant C8,840,1661,516,776
Events in quadrant D10,699,7851,486,884

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0230
B0230
C0230
D0230

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0386274
B0387534
C0386944
D0445794

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A03880
B03880
C03880
D03880

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A19046710.372782%
B190451350.708847%
C190452021.060646%
D190462531.328363%

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 21306 19050 0 0 0.00% 0.00%
B 21305 19049 3 3 0.01% 0.02%
C 21305 19049 0 0 0.00% 0.00%
D 21306 19050 121 121 0.57% 0.64%

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 19520 38.33 2244 2193 452.0
A 3 137 17583 34.05 2244 2193 452.0
A 12 194 16040 30.63 2244 2193 452.0
B 12 111 53507 119.69 2245 2186 428.8
B 11 111 45983 102.15 2245 2186 428.8
B 14 111 40060 88.33 2245 2186 428.8
C 14 238 333524 653.05 2166 2178 507.4
C 3 233 33136 61.01 2166 2178 507.4
C 8 128 16357 27.94 2166 2178 507.4
D 5 222 1048232 1979.23 2181 2120 528.5
D 13 232 572562 1079.27 2181 2120 528.5
D 1 52 428386 806.49 2181 2120 528.5

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