ASTROSAT CZTI

Data Quality Report

Orbit 23694

Creation date: 2024-06-27T18:57:36.196964
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/AS1C05_012T03_9000003500_23694cztM0_level2.evt modeM0/AS1C05_012T03_9000003500_23694cztM0_level2_quad_clean.evt
Size (bytes)608,181,120124,142,400
Size580.0 MB 118.4 MB
Events in quadrant A3,044,744858,729
Events in quadrant B3,258,982892,756
Events in quadrant C3,190,356865,838
Events in quadrant D8,509,455714,069

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01260
B01260
C01260
D01260

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130653
B0135872
C0134492
D0295842

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6124410.669497%
B6124600.979752%
C6124851.387982%
D6124196732.119530%

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 7449 6125 0 0 0.00% 0.00%
B 7449 6124 3 3 0.04% 0.05%
C 7449 6124 0 0 0.00% 0.00%
D 7449 6124 1640 1640 22.02% 26.78%

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 10673 62.95 790 777 157.2
A 0 226 6761 38.06 790 777 157.2
A 3 137 6429 35.95 790 777 157.2
B 0 245 40762 272.12 798 779 146.9
B 0 183 31509 209.14 798 779 146.9
B 0 219 23467 154.41 798 779 146.9
C 14 238 124919 696.45 780 788 178.2
C 7 247 18615 100.02 780 788 178.2
C 3 233 6980 34.74 780 788 178.2
D 13 174 5305976 32955.12 677 661 161.0
D 1 52 594169 3686.7 677 661 161.0
D 8 195 26261 159.02 677 661 161.0

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