ASTROSAT CZTI

Data Quality Report

Orbit 30169

Creation date: 2024-06-27T20:11:45.677978
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_097T03_9000004336_30169cztM0_level2.evt modeM0/AS1A10_097T03_9000004336_30169cztM0_level2_quad_clean.evt
Size (bytes)652,034,880104,163,840
Size621.8 MB 99.3 MB
Events in quadrant A3,439,998674,042
Events in quadrant B5,504,704676,745
Events in quadrant C6,269,159644,331
Events in quadrant D4,046,405657,942

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A050
B050
C050
D050

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01440
B01440
C01440
D01440

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0148621
B0217141
C0236911
D0164471

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A72051862.581541%
B72062263.136275%
C72064456.175409%
D72061912.650569%

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 7645 7205 0 0 0.00% 0.00%
B 7646 7207 0 0 0.00% 0.00%
C 7646 7206 38 38 0.50% 0.53%
D 7646 7207 36 36 0.47% 0.50%

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 16927 90.3 884 864 177.9
A 13 254 13363 70.27 884 864 177.9
A 8 192 9842 50.47 884 864 177.9
B 6 159 2063242 12210.48 869 844 168.9
B 0 190 24491 140.0 869 844 168.9
B 12 111 20769 117.97 869 844 168.9
C 3 233 2794966 14092.4 847 850 198.3
C 14 238 133625 669.66 847 850 198.3
C 15 208 22734 110.37 847 850 198.3
D 1 52 331393 1524.64 867 845 216.8
D 8 195 178681 820.26 867 845 216.8
D 11 176 138900 636.77 867 845 216.8

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