ASTROSAT CZTI

Data Quality Report

Orbit 10962

Creation date: 2024-06-27T16:06:18.815360
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/AS1T01_193T01_9000001590_10962cztM0_level2.evt modeM0/AS1T01_193T01_9000001590_10962cztM0_level2_quad_clean.evt
Size (bytes)593,792,640114,491,520
Size566.3 MB 109.2 MB
Events in quadrant A4,801,979737,507
Events in quadrant B4,261,672756,244
Events in quadrant C3,194,521772,143
Events in quadrant D5,242,508705,844

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01460
B01460
C01460
D01460

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0191547
B01747113
C0145296
D0206794

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A020
B020
C020
D020

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A71103064.303797%
B71092653.727669%
C7110420.590717%
D71116579.239207%

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 7347 7114 136 136 1.85% 1.91%
B 7347 7114 131 131 1.78% 1.84%
C 7347 7114 0 0 0.00% 0.00%
D 7346 7113 496 496 6.75% 6.97%

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 8 5 1643094 9818.43 811 796 167.3
A 14 238 16352 93.0 811 796 167.3
A 8 6 8459 45.81 811 796 167.3
B 4 239 877861 5552.81 824 804 157.9
B 0 214 37652 233.29 824 804 157.9
B 0 228 29364 180.82 824 804 157.9
C 8 128 8840 42.51 814 818 188.7
C 13 61 6078 27.88 814 818 188.7
C 8 112 5908 26.98 814 818 188.7
D 10 253 1230048 6524.14 775 753 188.4
D 1 52 689273 3654.13 775 753 188.4
D 14 34 139415 735.91 775 753 188.4

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