ASTROSAT CZTI

Data Quality Report

Orbit 09213

Creation date: 2024-06-27T15:42:48.626245
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_178T01_9000001286_09213cztM0_level2.evt modeM0/AS1A02_178T01_9000001286_09213cztM0_level2_quad_clean.evt
Size (bytes)247,317,12041,353,920
Size235.9 MB 39.4 MB
Events in quadrant A2,759,978236,543
Events in quadrant B1,621,173270,773
Events in quadrant C1,426,058267,325
Events in quadrant D1,471,249257,653

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A07511
B07612
C0764
D0762

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A020
B020
C020
D020

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0134163155
B078931012
C07337829
D07493976

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A289932511.210762%
B31201544.935897%
C31431153.658925%
D30821254.055808%

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 3807 3200 95 95 2.50% 2.97%
B 3808 3364 0 0 0.00% 0.00%
C 3808 3357 0 0 0.00% 0.00%
D 3808 3354 6 6 0.16% 0.18%

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 8 5 1377940 19007.59 342 334 72.5
A 1 162 36238 495.39 342 334 72.5
A 1 178 6957 91.38 342 334 72.5
B 8 234 141723 1917.94 371 361 73.7
B 0 214 19930 265.5 371 361 73.7
B 12 111 7526 97.21 371 361 73.7
C 3 233 5668 61.52 363 363 86.2
C 13 61 2774 27.96 363 363 86.2
C 8 222 1408 12.12 363 363 86.2
D 1 52 45738 483.38 360 349 93.9
D 8 195 25612 269.05 360 349 93.9
D 2 234 12517 129.59 360 349 93.9

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