ASTROSAT CZTI

Data Quality Report

Orbit 10599

Creation date: 2024-06-27T16:01:19.882133
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/AS1T01_191T01_9000001536_10599cztM0_level2.evt modeM0/AS1T01_191T01_9000001536_10599cztM0_level2_quad_clean.evt
Size (bytes)637,968,960102,153,600
Size608.4 MB 97.4 MB
Events in quadrant A3,525,667669,925
Events in quadrant B5,232,446643,570
Events in quadrant C3,418,345672,101
Events in quadrant D6,654,830604,755

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01460
B01460
C01460
D01460

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0151751
B0201950
C0150660
D0246260

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A72181902.632308%
B721872810.085896%
C72181532.119701%
D721890012.468828%

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 7218 7218 0 0 0.00% 0.00%
B 7218 7218 353 353 4.89% 4.89%
C 7218 7218 11 11 0.15% 0.15%
D 7218 7218 670 670 9.28% 9.28%

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 1 162 39672 210.05 884 868 184.7
A 13 251 24988 130.56 884 868 184.7
A 14 254 21057 109.28 884 868 184.7
B 4 239 1704926 10321.93 859 839 165.1
B 0 219 54227 323.38 859 839 165.1
B 11 51 42440 251.98 859 839 165.1
C 14 234 32356 156.1 865 871 201.7
C 1 0 8521 37.93 865 871 201.7
C 13 61 6583 28.32 865 871 201.7
D 2 16 2102679 10398.88 826 804 202.1
D 10 199 652328 3223.37 826 804 202.1
D 8 195 422622 2086.91 826 804 202.1

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