ASTROSAT CZTI

Data Quality Report

Orbit 20240804_A13_053T01_9000006370_level2

Creation date: 2024-08-10T08:57:46.952867
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/AS1A13_053T01_9000006370cztM0_level2.fits modeM0/AS1A13_053T01_9000006370cztM0_level2_quad_clean.evt
Size (bytes)1,059,370,5601,229,054,400
Size1010.3 MB 1.1 GB
Events in quadrant A6,130,4407,465,615
Events in quadrant B6,082,5067,708,868
Events in quadrant C6,378,9947,434,760
Events in quadrant D5,120,3006,253,146

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A04417520
B02575470
C02534770
D04032020

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A024740
B024740
C024740
D024740

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01580
B01580
C01580
D01580

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A12201838373.144618%
B12204218301.499484%
C1220439320.763665%
D1220241421211.646889%

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 151266 122042 0 0 0.00% 0.00%
B 151268 122004 0 0 0.00% 0.00%
C 151268 122038 0 0 0.00% 0.00%
D 151267 121843 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 7 110 5093 8.73 1598 1488 412.9
A 14 95 4559 7.44 1598 1488 412.9
A 0 29 4546 7.41 1598 1488 412.9
B 2 9 5742 13.45 1608 1526 313.4
B 2 8 4646 9.95 1608 1526 313.4
B 3 17 4456 9.35 1608 1526 313.4
C 3 202 4901 7.64 1687 1569 436.2
C 1 81 4854 7.53 1687 1569 436.2
C 3 203 4739 7.27 1687 1569 436.2
D 15 47 3772 6.04 1469 1329 404.7
D 10 113 3749 5.98 1469 1329 404.7
D 10 189 3748 5.98 1469 1329 404.7

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