ASTROSAT CZTI

Data Quality Report

Orbit 06387

Creation date: 2024-06-27T15:06:38.442536
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/AS1G06_169T01_9000000846_06387cztM0_level2.evt modeM0/AS1G06_169T01_9000000846_06387cztM0_level2_quad_clean.evt
Size (bytes)306,408,96049,245,120
Size292.2 MB 47.0 MB
Events in quadrant A2,328,779299,323
Events in quadrant B2,277,241298,498
Events in quadrant C2,053,874295,482
Events in quadrant D2,320,118288,968

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A010217363
B010052323
C09463246
D010253304

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0922
B0922
C0924
D0922

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A020
B020
C020
D020

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A43691393.181506%
B43851543.511973%
C44011092.476710%
D43871252.849328%

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 4678 4500 7 7 0.15% 0.16%
B 4678 4504 7 7 0.15% 0.16%
C 4678 4509 0 0 0.00% 0.00%
D 4677 4508 13 13 0.28% 0.29%

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 15 237759 2164.41 532 519 109.6
A 15 234 14662 129.03 532 519 109.6
A 15 174 8741 75.01 532 519 109.6
B 0 219 53548 504.39 535 522 105.1
B 4 81 44162 415.11 535 522 105.1
B 15 204 28274 263.98 535 522 105.1
C 9 54 21324 171.9 518 518 121.0
C 4 254 5222 38.87 518 518 121.0
C 13 61 4171 30.18 518 518 121.0
D 2 136 139055 1056.88 522 504 131.1
D 2 152 96567 732.78 522 504 131.1
D 13 112 44257 333.75 522 504 131.1

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