ASTROSAT CZTI

Data Quality Report

Orbit 22622

Creation date: 2024-06-27T18:43:41.927620
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/AS1A07_112T01_9000003360_22622cztM0_level2.evt modeM0/AS1A07_112T01_9000003360_22622cztM0_level2_quad_clean.evt
Size (bytes)479,520,00094,464,000
Size457.3 MB 90.1 MB
Events in quadrant A3,395,644611,272
Events in quadrant B3,428,608623,483
Events in quadrant C3,466,464594,690
Events in quadrant D3,797,627585,121

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0130
C0130
D0130

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0139912
B0140572
C0141962
D0153502

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6394921.438849%
B6394921.438849%
C63941071.673444%
D6394881.376290%

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 7614 6395 0 0 0.00% 0.00%
B 7614 6395 0 0 0.00% 0.00%
C 7614 6395 0 0 0.00% 0.00%
D 7614 6395 8 8 0.11% 0.13%

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 13 254 9788 51.02 881 865 174.9
A 0 226 7642 38.75 881 865 174.9
A 3 137 6723 33.49 881 865 174.9
B 12 111 18899 112.51 866 847 160.4
B 11 111 16715 98.9 866 847 160.4
B 14 111 14810 87.03 866 847 160.4
C 14 238 136317 695.71 843 850 194.7
C 10 22 28252 140.73 843 850 194.7
C 2 16 6332 28.15 843 850 194.7
D 12 227 339659 1648.33 858 836 205.6
D 1 52 84062 404.88 858 836 205.6
D 2 136 61539 295.31 858 836 205.6

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