ASTROSAT CZTI

Data Quality Report

Orbit 43999

Creation date: 2024-06-27T22:58:07.278606
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_034T03_9000005926_43999cztM0_level2.fits modeM0/AS1A13_034T03_9000005926_43999cztM0_level2_quad_clean.evt
Size (bytes)590,279,040124,917,120
Size562.9 MB 119.1 MB
Events in quadrant A7,509,016761,721
Events in quadrant B3,948,158873,699
Events in quadrant C3,980,249844,157
Events in quadrant D5,784,215740,380

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0110

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01680
B01680
C01680
D01680

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0285872
B0172702
C0175582
D0226992

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A8090122615.154512%
B80904285.290482%
C80903444.252163%
D80906728.306551%

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 9190 8093 587 587 6.39% 7.25%
B 9190 8093 1 1 0.01% 0.01%
C 9190 8093 11 11 0.12% 0.14%
D 9190 8093 317 317 3.45% 3.92%

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 14 238 2258962 11866.53 907 884 190.3
A 10 83 1236794 6494.89 907 884 190.3
A 15 223 466306 2445.86 907 884 190.3
B 4 171 43669 220.33 962 929 194.0
B 4 173 26826 133.5 962 929 194.0
B 12 111 24991 124.04 962 929 194.0
C 14 254 126992 557.1 959 962 226.2
C 3 233 101944 446.38 959 962 226.2
C 2 14 8652 33.99 959 962 226.2
D 1 52 1323374 5580.57 942 910 237.0
D 13 249 203081 853.13 942 910 237.0
D 13 171 195899 822.82 942 910 237.0

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