ASTROSAT CZTI

Data Quality Report

Orbit 03607

Creation date: 2024-06-27T14:31:33.081829
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_234T02_9000000474_03607cztM0_level2.evt modeM0/AS1G05_234T02_9000000474_03607cztM0_level2_quad_clean.evt
Size (bytes)469,535,04083,220,480
Size447.8 MB 79.4 MB
Events in quadrant A3,103,705518,248
Events in quadrant B4,027,600510,154
Events in quadrant C3,490,189508,122
Events in quadrant D3,130,562503,867

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A060
B060
C060
D060

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01400
B01400
C01400
D01400

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0143082
B0168661
C0152231
D0146991

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6882330.479512%
B68821211.758210%
C68821331.932578%
D6882630.915432%

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 7472 6883 5 5 0.07% 0.07%
B 7472 6883 33 33 0.44% 0.48%
C 7472 6883 48 48 0.64% 0.70%
D 7472 6883 50 50 0.67% 0.73%

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 14 238 29026 176.54 773 754 160.1
A 0 50 24111 145.85 773 754 160.1
A 7 16 22635 136.63 773 754 160.1
B 15 204 624914 4115.16 780 761 151.7
B 4 81 113101 740.68 780 761 151.7
B 12 16 83591 546.11 780 761 151.7
C 2 53 301630 1696.29 757 760 177.4
C 9 247 185827 1043.4 757 760 177.4
C 15 208 32356 178.14 757 760 177.4
D 13 46 110243 600.39 753 728 182.4
D 13 223 94713 515.25 753 728 182.4
D 13 239 23090 122.59 753 728 182.4

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
Veto Counter