ASTROSAT CZTI

Data Quality Report

Orbit 14997

Creation date: 2024-06-27T17:02:19.239412
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/AS1T02_056T01_9000002210_14997cztM0_level2.evt modeM0/AS1T02_056T01_9000002210_14997cztM0_level2_quad_clean.evt
Size (bytes)477,694,08093,456,000
Size455.6 MB 89.1 MB
Events in quadrant A3,588,581603,812
Events in quadrant B3,789,945608,273
Events in quadrant C3,442,414585,631
Events in quadrant D3,198,628573,172

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0146493
B0152162
C0139762
D0138012

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0160
B0160
C0160
D0170

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01340
B01340
C01340
D01340

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A65871562.368301%
B65872113.203279%
C65871021.548505%
D65871051.594049%

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 7648 6588 1 1 0.01% 0.02%
B 7648 6588 41 41 0.54% 0.62%
C 7648 6589 3 3 0.04% 0.05%
D 7648 6588 4 4 0.05% 0.06%

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 1 162 109303 632.64 848 829 171.5
A 12 189 92379 533.93 848 829 171.5
A 1 178 47476 272.05 848 829 171.5
B 3 64 195870 1222.94 837 815 159.5
B 0 229 122717 764.29 837 815 159.5
B 0 197 102928 640.22 837 815 159.5
C 3 233 235182 1250.94 810 815 187.4
C 10 22 32899 171.25 810 815 187.4
C 14 234 15202 76.79 810 815 187.4
D 7 38 30109 143.77 817 795 203.9
D 2 234 23117 109.47 817 795 203.9
D 13 104 17657 82.7 817 795 203.9

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