ASTROSAT CZTI

Data Quality Report

Orbit 13360

Creation date: 2024-06-27T16:39:39.120872
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/AS1G08_082T01_9000001986_13360cztM0_level2.evt modeM0/AS1G08_082T01_9000001986_13360cztM0_level2_quad_clean.evt
Size (bytes)440,461,440102,288,960
Size420.1 MB 97.6 MB
Events in quadrant A3,105,991676,196
Events in quadrant B3,235,562699,003
Events in quadrant C3,514,136663,872
Events in quadrant D3,067,173630,878

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0170
B0170
C0170
D0180

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0131113
B0135512
C0143392
D0132952

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01240
B01240
C01240
D01240

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6132560.913242%
B6132721.174168%
C6132751.223092%
D6132380.619700%

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 7518 6134 0 0 0.00% 0.00%
B 7518 6134 4 4 0.05% 0.07%
C 7518 6134 49 49 0.65% 0.80%
D 7518 6134 12 12 0.16% 0.20%

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 9 143 22917 140.06 788 775 158.1
A 1 162 19366 117.6 788 775 158.1
A 15 69 11783 69.63 788 775 158.1
B 3 64 41564 272.6 799 782 149.6
B 0 197 33832 220.91 799 782 149.6
B 3 209 21143 136.1 799 782 149.6
C 14 220 476492 2735.19 759 766 173.9
C 3 233 72227 410.87 759 766 173.9
C 13 61 5408 26.69 759 766 173.9
D 1 52 121435 679.16 749 730 177.7
D 8 195 47836 265.05 749 730 177.7
D 13 249 24473 133.59 749 730 177.7

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