ASTROSAT CZTI

Data Quality Report

Orbit 32245

Creation date: 2024-06-27T20:38:01.571598
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/AS1T04_054T01_9000004694_32245cztM0_level2.evt modeM0/AS1T04_054T01_9000004694_32245cztM0_level2_quad_clean.evt
Size (bytes)625,608,000105,575,040
Size596.6 MB 100.7 MB
Events in quadrant A3,261,137710,011
Events in quadrant B5,376,933704,136
Events in quadrant C4,722,504661,015
Events in quadrant D5,130,197653,097

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01380
B01380
C01380
D01380

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0139962
B0207961
C0188691
D0197371

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A080
B080
C080
D080

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6723570.847836%
B67231422.112152%
C6723152422.668452%
D67231942.885617%

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 7583 6724 0 0 0.00% 0.00%
B 7583 6724 33 33 0.44% 0.49%
C 7583 6723 31 31 0.41% 0.46%
D 7583 6724 85 85 1.12% 1.26%

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 13 254 13575 75.71 839 822 168.4
A 13 6 13175 73.34 839 822 168.4
A 3 137 8708 46.82 839 822 168.4
B 6 159 1845133 11611.97 824 803 158.8
B 5 172 126125 789.03 824 803 158.8
B 0 229 67639 420.8 824 803 158.8
C 0 10 754335 4650.11 687 691 162.1
C 14 254 443576 2732.67 687 691 162.1
C 14 238 421425 2596.0 687 691 162.1
D 8 195 1513888 7803.77 809 787 193.9
D 12 233 365630 1881.66 809 787 193.9
D 2 250 92587 473.46 809 787 193.9

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