ASTROSAT CZTI

Data Quality Report

Orbit 48229

Creation date: 2024-08-28T21:45:58.687984
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_029T01_9000006422_48229cztM0_level2.fits modeM0/AS1A13_029T01_9000006422_48229cztM0_level2_quad_clean.evt
Size (bytes)202,239,36035,510,400
Size192.9 MB 33.9 MB
Events in quadrant A2,502,436240,042
Events in quadrant B1,704,140233,546
Events in quadrant C1,550,129233,818
Events in quadrant D1,571,267220,935

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A087791
B063471
C059361
D059852

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0440
B0440
C0440
D0440

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0110

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A201128514.172054%
B201138018.896072%
C201123611.735455%
D20101497.412935%

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 3151 2011 34 34 1.08% 1.69%
B 3151 2011 235 235 7.46% 11.69%
C 3151 2011 146 146 4.63% 7.26%
D 3150 2010 35 35 1.11% 1.74%

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 1455818 25488.09 264 258 57.1
A 13 248 17282 298.1 264 258 57.1
A 0 243 4953 82.21 264 258 57.1
B 4 21 639576 12587.29 245 237 50.8
B 0 200 60459 1185.65 245 237 50.8
B 5 255 15471 299.93 245 237 50.8
C 12 2 559442 9194.4 252 253 60.8
C 12 249 5394 84.53 252 253 60.8
C 13 61 1694 23.69 252 253 60.8
D 2 165 486439 7079.98 264 255 68.7
D 7 38 35113 507.61 264 255 68.7
D 13 23 10152 144.12 264 255 68.7

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