ASTROSAT CZTI

Data Quality Report

Orbit 19644

Creation date: 2024-06-27T18:05:08.056757
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/AS1A05_101T08_9000002922_19644cztM0_level2.evt modeM0/AS1A05_101T08_9000002922_19644cztM0_level2_quad_clean.evt
Size (bytes)333,855,36050,711,040
Size318.4 MB 48.4 MB
Events in quadrant A1,982,019317,065
Events in quadrant B2,254,856320,192
Events in quadrant C2,017,573309,483
Events in quadrant D3,565,992288,393

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A086160
B093900
C086600
D0133510

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0840
B0840
C0840
D0840

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A426350.117288%
B4264350.820826%
C4264140.328330%
D42643377.903377%

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 4263 4263 0 0 0.00% 0.00%
B 4264 4264 17 17 0.40% 0.40%
C 4264 4264 0 0 0.00% 0.00%
D 4264 4264 330 330 7.74% 7.74%

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 4 2 7955 72.6 512 503 102.6
A 13 254 4757 41.45 512 503 102.6
A 0 226 4555 39.48 512 503 102.6
B 3 112 190699 1999.76 504 494 95.1
B 7 220 50015 520.65 504 494 95.1
B 0 197 13639 138.2 504 494 95.1
C 14 238 78366 679.01 494 499 114.7
C 3 233 10405 86.38 494 499 114.7
C 13 61 3486 26.05 494 499 114.7
D 7 238 1298970 10913.02 492 478 119.0
D 1 52 366630 3077.28 492 478 119.0
D 1 20 19362 158.71 492 478 119.0

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