ASTROSAT CZTI

Data Quality Report

Orbit 10511

Creation date: 2024-06-27T16:00:21.956726
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/AS1A03_127T02_9000001522_10511cztM0_level2.evt modeM0/AS1A03_127T02_9000001522_10511cztM0_level2_quad_clean.evt
Size (bytes)349,554,24092,851,200
Size333.4 MB 88.5 MB
Events in quadrant A2,279,374604,623
Events in quadrant B2,910,331612,411
Events in quadrant C2,294,648640,440
Events in quadrant D2,757,116599,813

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A060
B071
C060
D071

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A011207882
B0136651545
C011250841
D0124231043

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A011210
B01119
C01119
D011311

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5066761.500197%
B50642364.660348%
C5076611.201734%
D50461092.160127%

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 7203 5116 0 0 0.00% 0.00%
B 7198 5109 110 110 1.53% 2.15%
C 7196 5116 5 5 0.07% 0.10%
D 7194 5086 42 42 0.58% 0.83%

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 3 80 35825 302.37 572 559 116.6
A 15 239 26120 219.16 572 559 116.6
A 14 254 6941 54.72 572 559 116.6
B 4 239 559965 5140.54 568 553 108.8
B 11 51 54623 496.86 568 553 108.8
B 0 214 44056 399.76 568 553 108.8
C 14 234 31974 234.32 579 581 134.0
C 13 61 4393 28.45 579 581 134.0
C 14 238 1941 10.15 579 581 134.0
D 1 52 231417 1707.54 568 551 135.2
D 1 20 151031 1112.98 568 551 135.2
D 8 195 131174 966.12 568 551 135.2

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