ASTROSAT CZTI

Data Quality Report

Orbit 03822

Creation date: 2024-06-27T14:33:59.957214
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/AS1G05_189T01_9000000492_03822cztM0_level2.evt modeM0/AS1G05_189T01_9000000492_03822cztM0_level2_quad_clean.evt
Size (bytes)484,257,60068,506,560
Size461.8 MB 65.3 MB
Events in quadrant A3,185,744414,141
Events in quadrant B4,090,129413,765
Events in quadrant C3,102,485403,304
Events in quadrant D3,846,085389,608

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0135512
B0161621
C0135431
D0158791

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A65041191.829643%
B65042393.674662%
C6504781.199262%
D65042694.135916%

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 7669 6504 8 8 0.10% 0.12%
B 7669 6504 97 97 1.26% 1.49%
C 7669 6504 1 1 0.01% 0.02%
D 7669 6504 191 191 2.49% 2.94%

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 13 251 38958 228.76 813 798 166.8
A 8 15 11016 61.25 813 798 166.8
A 0 226 8707 47.41 813 798 166.8
B 14 167 560565 3546.87 814 795 157.8
B 15 204 286968 1813.28 814 795 157.8
B 10 16 43441 270.22 814 795 157.8
C 9 247 42713 232.7 775 781 180.2
C 2 53 8983 45.52 775 781 180.2
C 10 65 7882 39.41 775 781 180.2
D 14 34 341874 1836.13 773 750 185.8
D 12 227 269440 1446.25 773 750 185.8
D 8 112 178300 955.68 773 750 185.8

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