ASTROSAT CZTI

Data Quality Report

Orbit 36061

Creation date: 2022-08-10T03:24:03.691334
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/AS1T04_069T01_9000005158_36061cztM0_level2.evt modeM0/AS1T04_069T01_9000005158_36061cztM0_level2_quad_clean.evt
Size (bytes)722,502,72059,477,760
Size689.0 MB 56.7 MB
Events in quadrant A2,532,264400,702
Events in quadrant B3,443,970395,538
Events in quadrant C10,614,939288,752
Events in quadrant D4,938,257349,848

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 7087 5206 0 0 0.00% 0.00%
B 7087 5206 139 139 1.96% 2.67%
C 7087 5206 3081 3081 43.47% 59.18%
D 7087 5206 434 434 6.12% 8.34%

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 169217 1355.15 608 597 124.4
A 13 6 12054 92.08 608 597 124.4
A 13 254 7743 57.43 608 597 124.4
B 5 236 722462 6263.26 594 579 115.3
B 0 213 149635 1293.25 594 579 115.3
B 5 172 68349 587.99 594 579 115.3
C 9 187 8569307 83946.35 441 444 102.1
C 15 214 168855 1649.87 441 444 102.1
C 0 10 115628 1128.42 441 444 102.1
D 12 227 1136390 8053.37 572 555 141.0
D 12 6 666979 4725.12 572 555 141.0
D 7 223 444368 3146.75 572 555 141.0

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