ASTROSAT CZTI

Data Quality Report

Orbit 31466

Creation date: 2024-06-27T20:28:51.869583
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/AS1T04_029T01_9000004582_31466cztM0_level2.evt modeM0/AS1T04_029T01_9000004582_31466cztM0_level2_quad_clean.evt
Size (bytes)521,789,76094,561,920
Size497.6 MB 90.2 MB
Events in quadrant A3,148,324617,265
Events in quadrant B5,184,888627,378
Events in quadrant C3,507,904588,115
Events in quadrant D3,522,763579,625

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0220
B0220
C0220
D0220

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0135242
B0197912
C0145792
D0148022

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6476540.833848%
B64761191.837554%
C64752323.583012%
D6476540.833848%

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 8601 6476 0 0 0.00% 0.00%
B 8601 6476 0 0 0.00% 0.00%
C 8600 6475 67 67 0.78% 1.03%
D 8601 6476 7 7 0.08% 0.11%

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 13 254 12089 69.54 816 802 162.3
A 3 137 8373 46.65 816 802 162.3
A 0 226 6831 37.15 816 802 162.3
B 6 159 1901509 12252.3 810 790 155.1
B 0 190 60732 386.39 810 790 155.1
B 4 80 37239 234.96 810 790 155.1
C 0 10 310111 1689.31 779 787 183.1
C 14 238 125283 679.91 779 787 183.1
C 2 114 14546 75.14 779 787 183.1
D 8 195 454620 2432.87 788 767 186.6
D 12 218 37670 197.82 788 767 186.6
D 12 79 25323 131.63 788 767 186.6

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