ASTROSAT CZTI

Data Quality Report

Orbit 47315

Creation date: 2024-06-28T06:04:05.123103
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/AS1A13_093T23_9000006316_47315cztM0_level2.fits modeM0/AS1A13_093T23_9000006316_47315cztM0_level2_quad_clean.evt
Size (bytes)564,137,280105,788,160
Size538.0 MB 100.9 MB
Events in quadrant A7,286,866700,766
Events in quadrant B3,077,579771,721
Events in quadrant C6,101,745627,358
Events in quadrant D3,924,365660,198

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0200
B0210
C0210
D0210

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0263614
B0132082
C0223622
D0158982

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A63544827.585773%
B6354510.802644%
C635499115.596475%
D6354560.881335%

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 7569 6355 310 310 4.10% 4.88%
B 7569 6355 4 4 0.05% 0.06%
C 7568 6354 839 839 11.09% 13.20%
D 7569 6355 24 24 0.32% 0.38%

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 10 83 3505991 23375.73 728 715 150.0
A 9 191 836807 5575.67 728 715 150.0
A 15 235 102857 681.16 728 715 150.0
B 0 198 38798 261.16 748 726 145.8
B 0 218 22559 149.77 748 726 145.8
B 12 111 18601 122.62 748 726 145.8
C 12 2 2980498 19015.6 666 671 156.7
C 14 254 313527 1996.47 666 671 156.7
C 3 233 177916 1131.08 666 671 156.7
D 6 112 874110 4869.12 717 696 179.4
D 8 176 75278 415.78 717 696 179.4
D 7 55 45962 252.35 717 696 179.4

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