ASTROSAT CZTI

Data Quality Report

Orbit 19962

Creation date: 2024-06-27T18:09:17.821562
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_103T05_9000002974_19962cztM0_level2.evt modeM0/AS1A05_103T05_9000002974_19962cztM0_level2_quad_clean.evt
Size (bytes)292,466,88055,704,960
Size278.9 MB 53.1 MB
Events in quadrant A1,925,673360,415
Events in quadrant B2,028,661364,885
Events in quadrant C2,729,771338,840
Events in quadrant D1,898,123338,204

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0840
B0840
C0840
D0840

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A083661
B085811
C0109441
D084531

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0110

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A4026210.521610%
B4026501.241927%
C4026882.185792%
D4026190.471932%

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 5166 4027 0 0 0.00% 0.00%
B 5166 4027 8 8 0.15% 0.20%
C 5166 4026 1 1 0.02% 0.02%
D 5166 4027 8 8 0.15% 0.20%

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 0 226 4246 37.12 499 490 101.2
A 3 137 4064 35.32 499 490 101.2
A 13 254 3864 33.35 499 490 101.2
B 0 197 41655 434.78 498 487 94.7
B 12 111 11226 113.42 498 487 94.7
B 11 111 9875 99.15 498 487 94.7
C 3 233 372106 3357.21 477 479 110.7
C 10 222 362682 3272.08 477 479 110.7
C 14 238 75447 677.25 477 479 110.7
D 7 96 25912 218.84 482 469 116.3
D 2 234 19554 164.15 482 469 116.3
D 7 238 15093 125.78 482 469 116.3

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