ASTROSAT CZTI

Data Quality Report

Orbit 47367

Creation date: 2024-07-01T18:57:19.043104
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_093T25_9000006324_47367cztM0_level2.fits modeM0/AS1A13_093T25_9000006324_47367cztM0_level2_quad_clean.evt
Size (bytes)754,557,12069,102,720
Size719.6 MB 65.9 MB
Events in quadrant A12,862,01038,308
Events in quadrant B4,334,563605,255
Events in quadrant C4,535,844571,891
Events in quadrant D5,751,521474,531

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A010
B010
C010
D010

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A04217981
B01685113
C0174501
D02101017

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01160
B01160
C01160
D01160

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5749550295.703601%
B57564067.053509%
C57614678.106232%
D5757103918.047594%

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 5786 5756 4907 4907 84.81% 85.25%
B 5786 5760 122 122 2.11% 2.12%
C 5786 5762 362 362 6.26% 6.28%
D 5786 5760 792 792 13.69% 13.75%

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 15 235 8469279 77406.75 512 498 109.4
A 10 83 2201635 20118.93 512 498 109.4
A 9 191 169745 1546.95 512 498 109.4
B 14 167 928548 7206.45 646 624 128.8
B 0 186 399062 3094.35 646 624 128.8
B 5 255 150341 1162.73 646 624 128.8
C 0 207 1959583 13050.91 632 635 150.1
C 1 3 61898 408.15 632 635 150.1
C 3 233 39972 262.07 632 635 150.1
D 2 165 3047859 20210.69 598 580 150.8
D 2 249 246548 1631.35 598 580 150.8
D 12 128 39335 257.04 598 580 150.8

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