ASTROSAT CZTI

Data Quality Report

Orbit 45167

Creation date: 2024-06-27T23:10:07.807789
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_049T04_9000006048_45167cztM0_level2.fits modeM0/AS1A13_049T04_9000006048_45167cztM0_level2_quad_clean.evt
Size (bytes)293,774,40055,258,560
Size280.2 MB 52.7 MB
Events in quadrant A4,258,342345,104
Events in quadrant B1,843,101387,634
Events in quadrant C1,719,565375,118
Events in quadrant D2,779,549316,097

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A070
B070
C070
D070

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0150342
B077202
C074402
D0106532

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0740
B0740
C0740
D0740

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A351047413.504274%
B3510952.706553%
C3511280.797494%
D351136710.452862%

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 4315 3511 296 296 6.86% 8.43%
B 4315 3512 40 40 0.93% 1.14%
C 4316 3513 4 4 0.09% 0.11%
D 4316 3513 305 305 7.07% 8.68%

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 15 223 1382536 16929.73 389 381 81.6
A 10 83 1235387 15127.33 389 381 81.6
A 15 174 98464 1201.4 389 381 81.6
B 5 172 161669 1976.42 402 388 81.6
B 0 155 46760 568.26 402 388 81.6
B 0 246 14063 167.58 402 388 81.6
C 5 4 41207 423.32 402 404 96.4
C 1 3 40812 419.22 402 404 96.4
C 12 2 23928 244.06 402 404 96.4
D 13 249 1015271 10331.69 384 370 98.2
D 2 249 87698 889.0 384 370 98.2
D 13 29 58906 595.9 384 370 98.2

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