ASTROSAT CZTI

Data Quality Report

Orbit 05794

Creation date: 2024-06-27T14:59:14.239571
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/AS1A02_106T01_9000000744_05794cztM0_level2.evt modeM0/AS1A02_106T01_9000000744_05794cztM0_level2_quad_clean.evt
Size (bytes)463,389,12083,908,800
Size441.9 MB 80.0 MB
Events in quadrant A3,322,363513,898
Events in quadrant B3,589,247522,619
Events in quadrant C3,279,487506,823
Events in quadrant D3,346,016489,098

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0150467
B0155166
C0150326
D0152756

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01460
B01460
C01460
D01460

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A73031091.492537%
B73031251.711625%
C7303560.766808%
D7303580.794194%

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 7306 7306 0 0 0.00% 0.00%
B 7306 7306 7 7 0.10% 0.10%
C 7306 7306 0 0 0.00% 0.00%
D 7306 7306 1 1 0.01% 0.01%

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 8544 43.36 861 842 177.6
A 12 194 8396 42.53 861 842 177.6
A 13 14 4161 18.69 861 842 177.6
B 4 81 82599 486.74 870 847 168.0
B 15 85 80535 474.45 870 847 168.0
B 15 204 30162 174.54 870 847 168.0
C 13 61 6673 30.01 840 842 194.3
C 1 16 2696 9.54 840 842 194.3
C 3 202 2004 5.98 840 842 194.3
D 12 233 105457 504.09 840 811 207.6
D 8 195 39051 184.2 840 811 207.6
D 7 203 14833 67.54 840 811 207.6

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