ASTROSAT CZTI

Data Quality Report

Orbit 16099

Creation date: 2024-06-27T17:17:58.288895
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/AS1T02_110T01_9000002376_16099cztM0_level2.evt modeM0/AS1T02_110T01_9000002376_16099cztM0_level2_quad_clean.evt
Size (bytes)414,823,68057,360,960
Size395.6 MB 54.7 MB
Events in quadrant A2,379,488377,895
Events in quadrant B2,518,321375,706
Events in quadrant C2,291,288358,382
Events in quadrant D5,027,222267,220

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01020
B01020
C01020
D01020

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0105360
B0107090
C0102370
D0185140

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5091300.589275%
B5091100.196425%
C5091140.274995%
D5091115222.628167%

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 5092 5092 27 27 0.53% 0.53%
B 5092 5092 0 0 0.00% 0.00%
C 5092 5092 1 1 0.02% 0.02%
D 5092 5092 1137 1137 22.33% 22.33%

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 15 174 100353 828.93 584 572 120.4
A 12 96 21852 176.78 584 572 120.4
A 9 143 6284 47.45 584 572 120.4
B 0 189 97154 859.39 586 572 112.4
B 0 229 26124 227.36 586 572 112.4
B 0 190 18284 157.6 586 572 112.4
C 14 238 86389 648.12 561 565 132.4
C 0 207 10805 77.33 561 565 132.4
C 3 233 5887 40.19 561 565 132.4
D 7 38 2445273 19380.07 486 472 126.2
D 12 218 502213 3977.33 486 472 126.2
D 15 0 137537 1086.52 486 472 126.2

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