ASTROSAT CZTI

Data Quality Report

Orbit 08003

Creation date: 2024-06-27T15:26:31.633300
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/AS1A02_165T03_9000001098_08003cztM0_level2.evt modeM0/AS1A02_165T03_9000001098_08003cztM0_level2_quad_clean.evt
Size (bytes)289,062,72062,642,880
Size275.7 MB 59.7 MB
Events in quadrant A1,950,983394,363
Events in quadrant B2,049,166408,213
Events in quadrant C1,970,520413,943
Events in quadrant D2,500,416387,979

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0840
B0840
C0840
D0840

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A086362
B089141
C086891
D0103501

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140
B0140
C0140
D0140

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A4150200.481928%
B4150350.843373%
C4150190.457831%
D4150771.855422%

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 5521 4151 0 0 0.00% 0.00%
B 5521 4151 1 1 0.02% 0.02%
C 5521 4151 0 0 0.00% 0.00%
D 5521 4151 45 45 0.82% 1.08%

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 0 128 7825 72.34 501 491 101.4
A 13 14 5715 51.52 501 491 101.4
A 0 226 4721 41.72 501 491 101.4
B 5 255 27452 281.54 508 497 95.7
B 4 239 23926 244.71 508 497 95.7
B 11 51 13649 137.37 508 497 95.7
C 1 16 14507 121.86 499 501 114.9
C 13 61 3783 28.55 499 501 114.9
C 10 169 2912 20.97 499 501 114.9
D 1 52 302488 2541.28 489 476 118.8
D 11 144 174023 1460.31 489 476 118.8
D 2 14 133267 1117.37 489 476 118.8

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