ASTROSAT CZTI

Data Quality Report

Orbit 32123

Creation date: 2024-06-27T20:36:44.160079
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/AS1T04_051T01_9000004686_32123cztM0_level2.evt modeM0/AS1T04_051T01_9000004686_32123cztM0_level2_quad_clean.evt
Size (bytes)307,033,92058,518,720
Size292.8 MB 55.8 MB
Events in quadrant A1,721,473390,272
Events in quadrant B3,168,397378,125
Events in quadrant C1,861,427387,415
Events in quadrant D2,312,278371,659

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A07572561
B0129751213
C08086607
D010029918

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A07610
B0768
C07610
D07812

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A346050.144509%
B34481775.133411%
C3469330.951283%
D3450170.492754%

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 7498 3517 0 0 0.00% 0.00%
B 7498 3498 144 144 1.92% 4.12%
C 7498 3524 7 7 0.09% 0.20%
D 7497 3509 11 11 0.15% 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 13 6 7078 75.02 443 435 88.6
A 13 254 6748 71.29 443 435 88.6
A 3 137 4213 42.66 443 435 88.6
B 6 159 887164 10776.08 426 415 82.3
B 10 245 238685 2895.54 426 415 82.3
B 5 172 190041 2304.4 426 415 82.3
C 0 10 83467 822.84 431 433 100.9
C 14 238 73619 725.25 431 433 100.9
C 2 114 7867 73.67 431 433 100.9
D 8 195 589788 5730.9 433 422 102.8
D 12 233 48575 468.23 433 422 102.8
D 2 234 17661 167.63 433 422 102.8

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