ASTROSAT CZTI

Data Quality Report

Orbit 19036

Creation date: 2024-06-27T17:58:22.542195
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/AS1A05_046T01_9000002834_19036cztM0_level2.evt modeM0/AS1A05_046T01_9000002834_19036cztM0_level2_quad_clean.evt
Size (bytes)590,077,44096,678,720
Size562.7 MB 92.2 MB
Events in quadrant A3,321,996623,898
Events in quadrant B3,555,191640,374
Events in quadrant C3,748,418611,637
Events in quadrant D6,778,939572,235

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01400
B01400
C01400
D01400

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0141361
B0147781
C0151481
D0249074

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6882600.871840%
B6883841.220398%
C68831101.598140%
D68826148.921825%

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 7892 6883 0 0 0.00% 0.00%
B 7893 6884 6 6 0.08% 0.09%
C 7893 6884 1 1 0.01% 0.01%
D 7892 6883 489 489 6.20% 7.10%

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 8106 41.6 862 845 174.5
A 0 226 7587 38.63 862 845 174.5
A 3 137 6372 31.66 862 845 174.5
B 7 220 96944 583.27 858 835 164.8
B 3 112 35502 210.39 858 835 164.8
B 0 229 23159 135.48 858 835 164.8
C 3 233 324779 1655.33 831 839 195.7
C 14 238 128375 651.71 831 839 195.7
C 9 15 55412 278.87 831 839 195.7
D 7 238 3565516 17725.13 825 804 201.1
D 2 234 28682 138.62 825 804 201.1
D 1 31 25295 121.78 825 804 201.1

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