ASTROSAT CZTI

Data Quality Report

Orbit 05321

Creation date: 2024-06-27T14:53:51.876896
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/AS1G05_240T01_9000000674_05321cztM0_level2.evt modeM0/AS1G05_240T01_9000000674_05321cztM0_level2_quad_clean.evt
Size (bytes)1,963,442,880313,508,160
Size1.8 GB 299.0 MB
Events in quadrant A14,722,9121,881,043
Events in quadrant B14,482,9521,906,948
Events in quadrant C13,726,5171,864,419
Events in quadrant D14,515,4531,792,984

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0648266
B0632045
C0618265
D0643955

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A06060
B06060
C06060
D06060

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0280
B0280
C0280
D0280

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A298126452.163558%
B298125591.875084%
C298123571.197504%
D298125051.693949%

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 32652 29812 92 92 0.28% 0.31%
B 32652 29813 39 39 0.12% 0.13%
C 32652 29812 0 0 0.00% 0.00%
D 32652 29814 93 93 0.28% 0.31%

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 0 247 1268621 1805.3 3431 3351 700.9
A 0 226 149562 208.62 3431 3351 700.9
A 0 50 107199 148.17 3431 3351 700.9
B 4 80 391517 585.02 3479 3389 663.4
B 10 16 227498 337.8 3479 3389 663.4
B 4 48 114847 168.0 3479 3389 663.4
C 1 16 541147 691.56 3361 3379 777.6
C 14 67 35660 41.51 3361 3379 777.6
C 13 61 27280 30.74 3361 3379 777.6
D 2 136 559933 681.77 3346 3236 816.5
D 2 234 499574 607.85 3346 3236 816.5
D 8 195 240978 291.16 3346 3236 816.5

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