ASTROSAT CZTI

Data Quality Report

Orbit 20230306_C07_001T01_9000005532_level2

Creation date: 2023-03-08T12:11:37.543332
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/AS1C07_001T01_9000005532cztM0_level2.fits modeM0/AS1C07_001T01_9000005532cztM0_level2_quad_clean.evt
Size (bytes)721,846,080960,989,760
Size688.4 MB 916.5 MB
Events in quadrant A4,261,1506,049,295
Events in quadrant B4,159,1126,159,502
Events in quadrant C4,309,2866,044,608
Events in quadrant D3,614,2925,338,799

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01865010
B01747420
C01686990
D02170460

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A03120
B03120
C03120
D03120

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A016420
B016420
C016420
D016420

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A8044816962.108194%
B804485320.661297%
C804483010.374155%
D8044843945.461913%

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 110236 80432 0 0 0.00% 0.00%
B 110236 80428 0 0 0.00% 0.00%
C 110236 80421 0 0 0.00% 0.00%
D 110236 80328 0 0 0.00% 0.00%

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 29 3539 8.93 1110 1046 279.0
A 7 110 3373 8.34 1110 1046 279.0
A 9 19 3254 7.91 1110 1046 279.0
B 2 9 3590 11.91 1100 1051 213.2
B 3 80 3158 9.88 1100 1051 213.2
B 2 8 2944 8.88 1100 1051 213.2
C 1 81 3667 8.88 1139 1069 292.5
C 3 202 3529 8.41 1139 1069 292.5
C 3 203 3473 8.22 1139 1069 292.5
D 10 189 2725 6.49 1032 939 275.1
D 7 3 2663 6.27 1032 939 275.1
D 4 160 2565 5.91 1032 939 275.1

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