ASTROSAT CZTI

Data Quality Report

Orbit 36917

Creation date: 2024-06-27T21:33:11.617489
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/AS1C07_010T01_9000005246_36917cztM0_level2.evt modeM0/AS1C07_010T01_9000005246_36917cztM0_level2_quad_clean.evt
Size (bytes)238,098,24055,797,120
Size227.1 MB 53.2 MB
Events in quadrant A2,006,189414,571
Events in quadrant B932,2886,389
Events in quadrant C2,075,224493,877
Events in quadrant D1,868,971443,128

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A014050592681450446
B0-1-1
C0-1-1
D0-1-1

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140
B0220
C0140
D0230

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0133074632
B06406134
C0134104687
D0151316641

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A433930.069140%
B62726272100.000000%
C436220.045851%
D424620.047103%

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 26085 8677 0 0 0.00% 0.00%
B 26225 6271 0 0 0.00% 0.00%
C 26057 8722 0 0 0.00% 0.00%
D 26225 8489 0 0 0.00% 0.00%

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 10 83 117084 1178.93 483 473 98.9
A 12 189 12619 122.79 483 473 98.9
A 13 6 7792 73.99 483 473 98.9
B 12 243 873668 235942.05 10 10 3.7
B 12 144 16191 4369.88 10 10 3.7
B 0 229 409 107.75 10 10 3.7
C 15 214 183333 1647.73 477 483 111.0
C 0 207 21325 187.81 477 483 111.0
C 0 10 7220 60.71 477 483 111.0
D 13 171 25268 218.1 464 452 113.8
D 13 249 23203 199.95 464 452 113.8
D 2 234 19414 166.65 464 452 113.8

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