ASTROSAT CZTI

Data Quality Report

Orbit 45415

Creation date: 2024-06-27T23:11:22.597682
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_038T03_9000006058_45415cztM0_level2.fits modeM0/AS1A13_038T03_9000006058_45415cztM0_level2_quad_clean.evt
Size (bytes)497,897,280110,805,120
Size474.8 MB 105.7 MB
Events in quadrant A6,531,118683,847
Events in quadrant B3,789,393788,378
Events in quadrant C3,101,097762,975
Events in quadrant D4,513,364674,540

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0241272
B0154322
C0135702
D0178472

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0190
B0200
C0200
D0200

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A638574711.699295%
B63851852.897416%
C6385290.454190%
D63852854.463587%

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 7600 6386 553 553 7.28% 8.66%
B 7600 6386 103 103 1.36% 1.61%
C 7600 6386 9 9 0.12% 0.14%
D 7600 6386 225 225 2.96% 3.52%

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 10 83 2472295 16517.8 726 710 149.6
A 9 191 1216036 8122.12 726 710 149.6
A 2 79 25412 165.09 726 710 149.6
B 15 201 625598 4180.3 765 743 149.5
B 0 171 50262 331.28 765 743 149.5
B 15 36 35445 232.16 765 743 149.5
C 14 254 46070 252.44 763 769 179.5
C 14 96 32942 179.28 763 769 179.5
C 3 233 22978 123.76 763 769 179.5
D 13 249 709517 3848.41 744 722 184.2
D 11 241 388826 2107.22 744 722 184.2
D 2 249 211124 1142.38 744 722 184.2

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