ASTROSAT CZTI

Data Quality Report

Orbit 32009

Creation date: 2024-06-27T20:35:13.092206
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/AS1A10_109T01_9000004678_32009cztM0_level2.evt modeM0/AS1A10_109T01_9000004678_32009cztM0_level2_quad_clean.evt
Size (bytes)805,795,200103,576,320
Size768.5 MB 98.8 MB
Events in quadrant A3,507,706725,859
Events in quadrant B6,747,777693,412
Events in quadrant C8,471,474560,936
Events in quadrant D5,200,498664,132

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A020
B020
C020
D020

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01440
B01440
C01440
D01440

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0147741
B0251781
C0301181
D0200562

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A70551301.842665%
B70556589.326719%
C7055210429.822821%
D70541842.608449%

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 7225 7055 0 0 0.00% 0.00%
B 7225 7055 186 186 2.57% 2.64%
C 7225 7055 1070 1070 14.81% 15.17%
D 7224 7054 59 59 0.82% 0.84%

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 13 6 13642 69.6 905 888 183.3
A 13 254 13068 66.47 905 888 183.3
A 3 137 9091 44.76 905 888 183.3
B 6 159 1845481 10968.72 865 843 168.2
B 12 18 1026471 6098.66 865 843 168.2
B 10 247 165386 978.42 865 843 168.2
C 3 233 2840261 16121.02 748 755 176.1
C 10 22 2136019 12122.76 748 755 176.1
C 14 238 234679 1328.08 748 755 176.1
D 8 195 1348171 6412.4 873 849 210.1
D 2 250 424872 2018.08 873 849 210.1
D 13 249 64135 301.2 873 849 210.1

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