ASTROSAT CZTI

Data Quality Report

Orbit 13473

Creation date: 2024-06-27T16:41:19.138228
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/AS1A04_103T01_9000001988_13473cztM0_level2.evt modeM0/AS1A04_103T01_9000001988_13473cztM0_level2_quad_clean.evt
Size (bytes)438,373,44071,562,240
Size418.1 MB 68.2 MB
Events in quadrant A3,175,170433,386
Events in quadrant B3,250,840440,992
Events in quadrant C3,230,890434,336
Events in quadrant D3,185,508412,925

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0135583
B0137252
C0136912
D0136012

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0140

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6378731.144559%
B6378851.332706%
C6378671.050486%
D6378630.987770%

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 7519 6379 0 0 0.00% 0.00%
B 7519 6379 1 1 0.01% 0.02%
C 7519 6379 2 2 0.03% 0.03%
D 7519 6379 3 3 0.04% 0.05%

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 0 226 7425 40.17 822 805 164.8
A 8 15 7376 39.88 822 805 164.8
A 12 194 6165 32.53 822 805 164.8
B 3 64 41895 268.17 818 798 153.3
B 12 111 17705 110.32 818 798 153.3
B 11 111 15246 94.28 818 798 153.3
C 3 233 57116 305.04 806 813 184.6
C 0 207 30516 160.92 806 813 184.6
C 13 61 5794 26.99 806 813 184.6
D 8 195 120062 623.73 799 778 191.2
D 13 249 28308 143.95 799 778 191.2
D 2 234 21264 107.12 799 778 191.2

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