ASTROSAT CZTI

Data Quality Report

Orbit 03448

Creation date: 2024-06-27T14:29:09.888106
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_167T01_9000000456_03448cztM0_level2.evt modeM0/AS1G05_167T01_9000000456_03448cztM0_level2_quad_clean.evt
Size (bytes)497,208,960101,044,800
Size474.2 MB 96.4 MB
Events in quadrant A3,543,646639,985
Events in quadrant B4,065,470639,250
Events in quadrant C3,561,765641,325
Events in quadrant D3,376,496616,687

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A070
B070
C070
D080

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01540
B01540
C01540
D01540

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0158633
B0171812
C0159382
D0157422

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A75071201.598508%
B75071912.544292%
C75071061.412015%
D7507500.666045%

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 7812 7508 3 3 0.04% 0.04%
B 7812 7508 3 3 0.04% 0.04%
C 7812 7508 0 0 0.00% 0.00%
D 7812 7508 9 9 0.12% 0.12%

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 0 50 40739 211.18 906 886 188.7
A 12 194 9411 45.17 906 886 188.7
A 0 226 9308 44.63 906 886 188.7
B 15 204 447371 2482.9 920 899 179.8
B 0 229 24142 129.26 920 899 179.8
B 12 111 13702 71.2 920 899 179.8
C 1 192 52570 246.79 888 898 209.4
C 7 220 14124 63.17 888 898 209.4
C 13 61 7387 30.99 888 898 209.4
D 9 85 22702 101.18 878 854 215.9
D 5 233 21751 96.78 878 854 215.9
D 7 223 12897 55.77 878 854 215.9

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