ASTROSAT CZTI

Data Quality Report

Orbit 34106

Creation date: 2024-06-27T20:56:55.350008
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_093T01_9000004872_34106cztM0_level2.evt modeM0/AS1T04_093T01_9000004872_34106cztM0_level2_quad_clean.evt
Size (bytes)85,737,60010,091,520
Size81.8 MB 9.6 MB
Events in quadrant A398,83862,978
Events in quadrant B795,21959,502
Events in quadrant C768,86757,491
Events in quadrant D574,29959,683

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A016732
B029061
C028281
D022431

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0180
B0180
C0180
D0180

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140
B0140
C0140
D0140

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A82420.242718%
B82413316.140777%
C8249711.771845%
D824192.305825%

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 824 824 0 0 0.00% 0.00%
B 824 824 103 103 12.50% 12.50%
C 824 824 82 82 9.95% 9.95%
D 824 824 8 8 0.97% 0.97%

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 10 83 8700 392.38 100 98 21.9
A 13 6 2298 100.35 100 98 21.9
A 13 254 1596 68.33 100 98 21.9
B 5 172 425971 21094.72 92 90 20.2
B 12 111 2153 102.18 92 90 20.2
B 11 111 2078 98.47 92 90 20.2
C 0 10 209827 9383.11 89 88 22.4
C 14 254 93688 4187.39 89 88 22.4
C 0 239 76954 3438.76 89 88 22.4
D 8 195 96873 3886.13 95 91 24.9
D 2 250 68174 2733.77 95 91 24.9
D 12 6 23916 956.66 95 91 24.9

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