ASTROSAT CZTI

Data Quality Report

Orbit 11584

Creation date: 2024-06-27T16:15:30.981496
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/AS1G08_031T01_9000001702_11584cztM0_level2.evt modeM0/AS1G08_031T01_9000001702_11584cztM0_level2_quad_clean.evt
Size (bytes)681,301,44090,244,800
Size649.7 MB 86.1 MB
Events in quadrant A5,535,176580,925
Events in quadrant B5,149,988573,987
Events in quadrant C3,151,126586,784
Events in quadrant D6,310,896490,297

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0214722
B0199621
C0146041
D0236911

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A030
B030
C030
D030

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01460
B01460
C01460
D01460

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A71833064.260058%
B71834866.765975%
C7183120.167061%
D7183101714.158430%

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 7484 7185 125 125 1.67% 1.74%
B 7484 7185 356 356 4.76% 4.95%
C 7484 7185 0 0 0.00% 0.00%
D 7484 7185 927 927 12.39% 12.90%

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 1824724 10712.29 830 809 170.3
A 1 162 183770 1074.57 830 809 170.3
A 1 178 105938 617.45 830 809 170.3
B 4 239 1321496 8326.92 823 802 158.6
B 3 64 330116 2076.31 823 802 158.6
B 11 51 119998 751.53 823 802 158.6
C 13 61 5768 26.23 806 812 189.0
C 14 239 5267 23.58 806 812 189.0
C 12 4 2196 7.32 806 812 189.0
D 1 52 2916821 16079.5 747 724 181.4
D 10 199 153077 840.08 747 724 181.4
D 7 71 128278 703.34 747 724 181.4

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