ASTROSAT CZTI

Data Quality Report

Orbit 09743

Creation date: 2024-06-27T15:50:07.636001
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/AS1A03_114T01_9000001390_09743cztM0_level2.evt modeM0/AS1A03_114T01_9000001390_09743cztM0_level2_quad_clean.evt
Size (bytes)727,885,440119,148,480
Size694.2 MB 113.6 MB
Events in quadrant A5,240,392718,196
Events in quadrant B5,279,551736,152
Events in quadrant C5,131,281713,130
Events in quadrant D5,646,545678,644

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02279541
B02276664
C02277044
D02447263

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02262
B02260
C02260
D02260

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0200
B0200
C0200
D0200

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A110051891.717401%
B109942292.082954%
C110031331.208761%
D110002872.609091%

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 13064 11022 0 0 0.00% 0.00%
B 13064 11022 0 0 0.00% 0.00%
C 13064 11022 0 0 0.00% 0.00%
D 13064 11021 121 121 0.93% 1.10%

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 0 226 12439 40.43 1357 1330 274.7
A 14 111 10988 35.15 1357 1330 274.7
A 12 194 10672 34.0 1357 1330 274.7
B 12 111 31262 115.35 1354 1323 259.5
B 11 111 25731 94.04 1354 1323 259.5
B 14 111 21243 76.75 1354 1323 259.5
C 13 61 9749 27.71 1312 1323 304.1
C 14 234 6296 16.35 1312 1323 304.1
C 8 222 6112 15.75 1312 1323 304.1
D 1 52 534818 1596.01 1288 1263 334.3
D 13 104 74451 218.93 1288 1263 334.3
D 13 137 56861 166.31 1288 1263 334.3

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