ASTROSAT CZTI

Data Quality Report

Orbit 05691

Creation date: 2024-06-27T14:58:01.407729
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/AS1G06_115T01_9000000734_05691cztM0_level2.evt modeM0/AS1G06_115T01_9000000734_05691cztM0_level2_quad_clean.evt
Size (bytes)448,416,00086,175,360
Size427.6 MB 82.2 MB
Events in quadrant A3,121,736536,726
Events in quadrant B3,492,915537,012
Events in quadrant C3,122,304537,225
Events in quadrant D3,376,731520,384

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0142502
B0149991
C0140931
D0151001

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A060
B060
C060
D060

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01400
B01400
C01400
D01400

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6862670.976392%
B6862841.224133%
C6862180.262314%
D6862490.714078%

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 7447 6863 3 3 0.04% 0.04%
B 7447 6863 12 12 0.16% 0.17%
C 7447 6863 0 0 0.00% 0.00%
D 7447 6863 17 17 0.23% 0.25%

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 15 236 52278 322.45 787 773 159.7
A 0 50 25405 154.21 787 773 159.7
A 0 226 7697 43.35 787 773 159.7
B 15 204 165163 1079.2 793 774 152.3
B 0 214 68819 446.71 793 774 152.3
B 11 51 68724 446.09 793 774 152.3
C 1 16 163296 934.63 757 762 173.9
C 13 61 6019 30.23 757 762 173.9
C 8 222 2838 11.94 757 762 173.9
D 2 152 190271 1020.88 760 735 185.7
D 2 136 114736 614.03 760 735 185.7
D 2 14 60391 321.32 760 735 185.7

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