ASTROSAT CZTI

Data Quality Report

Orbit 47012

Creation date: 2024-06-27T23:30:42.681499
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/AS1C09_006T01_9000006294_47012cztM0_level2.fits modeM0/AS1C09_006T01_9000006294_47012cztM0_level2_quad_clean.evt
Size (bytes)666,930,240101,629,440
Size636.0 MB 96.9 MB
Events in quadrant A6,468,871718,103
Events in quadrant B10,249,196554,488
Events in quadrant C2,955,382715,141
Events in quadrant D4,516,319640,601

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0110

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0240651
B0349641
C0132831
D0176941

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A64333034.710089%
B6433227935.426706%
C6434951.476531%
D64343435.331054%

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 7493 6434 6 6 0.08% 0.09%
B 7493 6434 1668 1668 22.26% 25.92%
C 7494 6435 2 2 0.03% 0.03%
D 7494 6435 238 238 3.18% 3.70%

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 3365822 21645.94 749 732 155.5
A 9 191 190452 1220.37 749 732 155.5
A 13 248 10867 65.19 749 732 155.5
B 3 112 7252599 54381.2 671 648 133.4
B 4 171 158237 1181.73 671 648 133.4
B 0 200 46727 345.54 671 648 133.4
C 14 254 27159 150.82 744 746 175.1
C 3 233 14987 81.32 744 746 175.1
C 12 250 11091 59.07 744 746 175.1
D 1 52 1086294 5848.14 739 716 185.6
D 13 249 309432 1663.09 739 716 185.6
D 13 29 90990 486.32 739 716 185.6

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