ASTROSAT CZTI

Data Quality Report

Orbit 28010

Creation date: 2024-06-27T19:46:59.642139
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/AS1A10_021T08_9000004042_28010cztM0_level2.evt modeM0/AS1A10_021T08_9000004042_28010cztM0_level2_quad_clean.evt
Size (bytes)506,448,00090,149,760
Size483.0 MB 86.0 MB
Events in quadrant A3,342,298581,304
Events in quadrant B3,350,709596,136
Events in quadrant C3,429,371573,443
Events in quadrant D4,797,830549,130

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0132000
B0132690
C0135880
D0184360

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6156941.526966%
B61561071.738142%
C61571302.111418%
D61562814.564652%

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 7396 6156 0 0 0.00% 0.00%
B 7396 6156 2 2 0.03% 0.03%
C 7397 6157 1 1 0.01% 0.02%
D 7396 6156 219 219 2.96% 3.56%

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 0 13 49287 284.46 853 837 170.3
A 13 254 10033 53.99 853 837 170.3
A 3 137 7570 39.53 853 837 170.3
B 10 245 31367 192.82 839 818 158.4
B 12 111 18824 113.65 839 818 158.4
B 4 200 18348 110.64 839 818 158.4
C 14 238 134953 701.74 824 831 191.1
C 3 233 42975 220.5 824 831 191.1
C 15 208 37484 191.77 824 831 191.1
D 8 195 813796 4169.39 826 808 195.0
D 2 250 428623 2194.04 826 808 195.0
D 1 52 359852 1841.35 826 808 195.0

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