ASTROSAT CZTI

Data Quality Report

Orbit 33563

Creation date: 2024-06-27T20:50:11.186518
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/AS1A11_060T01_9000004808_33563cztM0_level2.evt modeM0/AS1A11_060T01_9000004808_33563cztM0_level2_quad_clean.evt
Size (bytes)634,357,44059,503,680
Size605.0 MB 56.7 MB
Events in quadrant A5,345,587334,601
Events in quadrant B3,635,361388,161
Events in quadrant C5,215,017387,331
Events in quadrant D4,706,721368,628

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0188990
B0137510
C0188050
D0171650

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A070
B060
C060
D060

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0920
B0920
C0920
D0920

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A4586114224.901875%
B458648110.488443%
C458659412.952464%
D45863708.068033%

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 4586 4586 1057 1057 23.05% 23.05%
B 4586 4586 404 404 8.81% 8.81%
C 4586 4586 488 488 10.64% 10.64%
D 4586 4586 412 412 8.98% 8.98%

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 15 169 3519952 36556.25 470 461 96.3
A 10 248 7248 70.5 470 461 96.3
A 13 254 6919 67.08 470 461 96.3
B 5 172 1413778 14342.3 507 495 98.5
B 5 255 123446 1247.73 507 495 98.5
B 4 251 41605 417.19 507 495 98.5
C 3 233 2884482 25060.17 489 492 115.1
C 15 214 185733 1609.63 489 492 115.1
C 14 254 175551 1521.16 489 492 115.1
D 8 195 792375 6481.91 501 488 122.2
D 1 47 768128 6283.44 501 488 122.2
D 2 250 377594 3086.76 501 488 122.2

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