ASTROSAT CZTI

Data Quality Report

Orbit 37060

Creation date: 2024-06-27T21:35:04.096617
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/AS1A09_038T01_9000005276_37060cztM0_level2.evt modeM0/AS1A09_038T01_9000005276_37060cztM0_level2_quad_clean.evt
Size (bytes)435,349,44079,464,960
Size415.2 MB 75.8 MB
Events in quadrant A2,089,709566,298
Events in quadrant B3,776,354522,706
Events in quadrant C2,252,796565,721
Events in quadrant D4,770,877446,017

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A080
B080
C080
D090

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A089691
B0141141
C092671
D0170751

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0900
B0900
C0900
D0900

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A432750.115554%
B432776017.564132%
C4327471.086203%
D4327114226.392420%

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 4327 4327 3 3 0.07% 0.07%
B 4327 4327 548 548 12.66% 12.66%
C 4327 4327 41 41 0.95% 0.95%
D 4327 4327 718 718 16.59% 16.59%

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 175724 1771.29 490 481 98.9
A 9 143 6736 63.22 490 481 98.9
A 13 254 6179 57.59 490 481 98.9
B 5 184 1224761 14238.63 455 444 86.0
B 5 172 495955 5762.72 455 444 86.0
B 5 200 79979 924.98 455 444 86.0
C 15 214 179356 1614.57 483 488 110.8
C 0 10 114483 1028.99 483 488 110.8
C 10 20 54171 484.58 483 488 110.8
D 12 17 1851254 18303.43 412 399 101.1
D 6 112 502697 4967.31 412 399 101.1
D 1 52 336555 3324.31 412 399 101.1

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