ASTROSAT CZTI

Data Quality Report

Orbit 06369

Creation date: 2024-06-27T15:06:16.163437
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/AS1A02_124T01_9000000842_06369cztM0_level2.evt modeM0/AS1A02_124T01_9000000842_06369cztM0_level2_quad_clean.evt
Size (bytes)505,759,68065,410,560
Size482.3 MB 62.4 MB
Events in quadrant A3,266,576395,467
Events in quadrant B3,243,743399,366
Events in quadrant C3,559,139395,107
Events in quadrant D4,813,480343,948

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0170
B0170
C0170
D0180

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0134753
B0135012
C0145012
D0183902

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6393751.173158%
B6393711.110590%
C63931241.939621%
D63935869.166276%

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 7668 6395 4 4 0.05% 0.06%
B 7668 6395 1 1 0.01% 0.02%
C 7668 6395 43 43 0.56% 0.67%
D 7668 6395 506 506 6.60% 7.91%

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 15 236 140038 874.18 795 777 159.3
A 8 15 42604 262.56 795 777 159.3
A 15 174 15137 90.14 795 777 159.3
B 0 219 94541 621.99 799 780 150.7
B 10 246 22375 143.26 799 780 150.7
B 14 167 20015 127.6 799 780 150.7
C 4 254 326613 1836.56 775 779 177.4
C 1 241 205012 1151.16 775 779 177.4
C 13 61 6125 30.13 775 779 177.4
D 2 63 1575280 8667.37 750 728 181.7
D 2 152 207940 1140.63 750 728 181.7
D 12 221 111932 612.14 750 728 181.7

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