ASTROSAT CZTI

Data Quality Report

Orbit 46769

Creation date: 2024-06-27T23:27:25.636057
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/AS1A13_053T01_9000006266_46769cztM0_level2.fits modeM0/AS1A13_053T01_9000006266_46769cztM0_level2_quad_clean.evt
Size (bytes)548,527,680121,875,840
Size523.1 MB 116.2 MB
Events in quadrant A7,136,179804,104
Events in quadrant B4,140,445838,002
Events in quadrant C3,497,465796,647
Events in quadrant D4,927,648710,837

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01540
B01540
C01540
D01540

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0259410
B01746510
C0161490
D0200850

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A77781972.532785%
B7776510.655864%
C7779330.424219%
D77793414.383597%

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 7778 7778 156 156 2.01% 2.01%
B 7779 7777 25 25 0.32% 0.32%
C 7779 7779 31 31 0.40% 0.40%
D 7779 7779 320 320 4.11% 4.11%

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 10 83 3430002 19997.72 827 808 171.5
A 13 248 392926 2286.68 827 808 171.5
A 9 191 100420 580.9 827 808 171.5
B 3 112 509208 3104.24 831 807 163.8
B 4 171 116501 706.42 831 807 163.8
B 5 255 99588 603.15 831 807 163.8
C 14 254 148850 763.1 823 827 194.0
C 12 249 45076 228.12 823 827 194.0
C 15 208 25139 125.33 823 827 194.0
D 13 249 925506 4574.24 803 777 202.2
D 1 52 553385 2733.52 803 777 202.2
D 10 181 148502 730.73 803 777 202.2

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