ASTROSAT CZTI

Data Quality Report

Orbit 07110

Creation date: 2024-06-27T15:15:43.011418
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/AS1A02_090T01_9000000970_07110cztM0_level2.evt modeM0/AS1A02_090T01_9000000970_07110cztM0_level2_quad_clean.evt
Size (bytes)513,679,68093,885,120
Size489.9 MB 89.5 MB
Events in quadrant A3,537,716588,113
Events in quadrant B3,693,001595,801
Events in quadrant C3,628,278586,705
Events in quadrant D4,191,962554,527

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0153573
B0155812
C0157322
D0171492

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01520
B01520
C01520
D01520

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A74411982.660933%
B74412132.862518%
C74411552.083053%
D74412032.728128%

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 7771 7441 0 0 0.00% 0.00%
B 7771 7441 3 3 0.04% 0.04%
C 7771 7441 11 11 0.14% 0.15%
D 7771 7441 43 43 0.55% 0.58%

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 8 15 21548 109.41 907 884 188.9
A 14 111 10612 51.51 907 884 188.9
A 13 14 9135 43.69 907 884 188.9
B 0 214 78628 441.86 915 893 175.9
B 10 246 37838 210.0 915 893 175.9
B 12 111 17699 95.53 915 893 175.9
C 10 22 113831 551.07 884 889 204.9
C 4 254 34260 162.83 884 889 204.9
C 9 68 22319 104.56 884 889 204.9
D 2 216 580727 2653.96 883 854 218.5
D 8 195 222309 1013.55 883 854 218.5
D 2 14 33060 147.4 883 854 218.5

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