ASTROSAT CZTI

Data Quality Report

Orbit 08542

Creation date: 2024-06-27T15:34:04.408773
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/AS1G07_060T01_9000001200_08542cztM0_level2.evt modeM0/AS1G07_060T01_9000001200_08542cztM0_level2_quad_clean.evt
Size (bytes)481,538,88080,985,600
Size459.2 MB 77.2 MB
Events in quadrant A3,676,618491,222
Events in quadrant B3,724,524494,998
Events in quadrant C3,267,479491,743
Events in quadrant D3,427,377474,803

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01460
B01460
C01460
D01460

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01586925
B01587220
C01481013
D01551517

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0210
B0210
C0210
D0210

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A7177971.351540%
B71781852.577320%
C7182290.403787%
D7181570.793761%

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 9212 7189 24 24 0.26% 0.33%
B 9212 7188 74 74 0.80% 1.03%
C 9212 7189 0 0 0.00% 0.00%
D 9212 7189 34 34 0.37% 0.47%

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 15 223 249632 1433.34 852 833 173.6
A 15 239 97537 557.12 852 833 173.6
A 13 248 32818 184.27 852 833 173.6
B 10 16 337044 2044.58 857 836 164.4
B 0 214 28040 165.44 857 836 164.4
B 12 111 18786 109.16 857 836 164.4
C 9 54 19330 95.85 832 836 192.9
C 13 61 6390 28.79 832 836 192.9
C 8 222 4398 18.46 832 836 192.9
D 1 52 183133 892.24 822 798 204.4
D 7 71 40989 196.67 822 798 204.4
D 9 64 27676 131.53 822 798 204.4

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