ASTROSAT CZTI

Data Quality Report

Orbit 06715

Creation date: 2024-06-27T15:10:42.851677
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/AS1C02_003T01_9000000924_06715cztM0_level2.evt modeM0/AS1C02_003T01_9000000924_06715cztM0_level2_quad_clean.evt
Size (bytes)345,528,00065,577,600
Size329.5 MB 62.5 MB
Events in quadrant A2,389,545428,882
Events in quadrant B2,033,883444,995
Events in quadrant C1,979,037434,182
Events in quadrant D3,774,249380,276

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0860
B0860
C0860
D0860

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A099584
B088011
C087261
D01417111

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A42181714.054054%
B4219751.777672%
C4219461.090306%
D421867716.050261%

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 5503 4219 16 16 0.29% 0.38%
B 5504 4220 1 1 0.02% 0.02%
C 5504 4220 0 0 0.00% 0.00%
D 5504 4220 605 605 10.99% 14.34%

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 14 111 332814 3224.77 505 495 103.1
A 8 15 81888 789.82 505 495 103.1
A 13 251 27761 264.58 505 495 103.1
B 10 252 15531 151.81 519 507 99.0
B 12 111 9866 94.57 519 507 99.0
B 11 111 7698 72.66 519 507 99.0
C 10 22 6781 53.14 503 506 118.1
C 9 247 6074 47.15 503 506 118.1
C 13 61 4029 29.83 503 506 118.1
D 2 33 1941417 16928.19 468 453 114.7
D 8 195 35718 307.57 468 453 114.7
D 2 136 25162 215.5 468 453 114.7

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