ASTROSAT CZTI

Data Quality Report

Orbit 09229

Creation date: 2024-06-27T15:42:58.028501
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_09229cztM0_level2.evt modeM0/AS1A02_178T01_9000001286_09229cztM0_level2_quad_clean.evt
Size (bytes)255,824,64060,318,720
Size244.0 MB 57.5 MB
Events in quadrant A2,610,502395,789
Events in quadrant B1,684,272397,486
Events in quadrant C1,537,829388,502
Events in quadrant D1,661,933382,832

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0740
B0740
C0740
D0740

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0102601
B075002
C074050
D076580

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A3701370.999730%
B370020.054054%
C370110.027020%
D3701190.513375%

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 3701 3701 34 34 0.92% 0.92%
B 3701 3701 1 1 0.03% 0.03%
C 3701 3701 0 0 0.00% 0.00%
D 3701 3701 13 13 0.35% 0.35%

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 840018 9788.31 413 406 85.8
A 5 16 71520 829.06 413 406 85.8
A 1 162 37941 437.59 413 406 85.8
B 0 214 31674 385.45 412 402 81.1
B 4 173 14537 174.22 412 402 81.1
B 4 48 11017 130.84 412 402 81.1
C 13 61 2936 27.47 393 395 92.5
C 14 67 2780 25.78 393 395 92.5
C 8 222 2419 21.88 393 395 92.5
D 12 233 32231 301.44 395 386 105.6
D 7 71 26160 243.97 395 386 105.6
D 2 234 22153 206.04 395 386 105.6

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