ASTROSAT CZTI

Data Quality Report

Orbit 05019

Creation date: 2024-06-27T14:50:15.763672
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/AS1G05_250T02_9000000638_05019cztM0_level2.evt modeM0/AS1G05_250T02_9000000638_05019cztM0_level2_quad_clean.evt
Size (bytes)381,732,48069,888,960
Size364.0 MB 66.7 MB
Events in quadrant A2,610,764426,305
Events in quadrant B2,751,073431,993
Events in quadrant C2,572,068435,448
Events in quadrant D3,228,895413,352

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0110

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01200
B01200
C01200
D01200

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0119472
B0121031
C0119631
D0138651

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5851210.358913%
B5851340.581097%
C5851160.273458%
D5851460.786190%

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 6931 5852 2 2 0.03% 0.03%
B 6931 5852 1 1 0.01% 0.02%
C 6931 5852 1 1 0.01% 0.02%
D 6931 5852 29 29 0.42% 0.50%

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 13 251 44548 327.64 660 644 134.0
A 0 50 11698 82.49 660 644 134.0
A 15 174 8817 60.99 660 644 134.0
B 15 204 93589 728.54 666 651 127.6
B 4 80 50641 391.87 666 651 127.6
B 4 48 14978 112.31 666 651 127.6
C 1 16 72898 490.2 637 641 147.4
C 13 61 5399 32.28 637 641 147.4
C 14 67 4986 29.47 637 641 147.4
D 2 136 208594 1321.96 635 616 157.3
D 13 53 130343 824.57 635 616 157.3
D 12 227 127711 807.84 635 616 157.3

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