ASTROSAT CZTI

Data Quality Report

Orbit 29517

Creation date: 2024-06-27T20:04:55.017241
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/AS1A10_048T05_9000004250_29517cztM0_level2.evt modeM0/AS1A10_048T05_9000004250_29517cztM0_level2_quad_clean.evt
Size (bytes)800,928,00090,406,080
Size763.8 MB 86.2 MB
Events in quadrant A3,387,483587,468
Events in quadrant B3,416,265599,802
Events in quadrant C4,624,691573,609
Events in quadrant D12,368,455501,267

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01400
B01400
C01400
D01400

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A090
B090
C090
D090

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140642
B0141234
C0183012
D0414182

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A68171101.613613%
B68161151.687207%
C68172573.769987%
D6817228633.533813%

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 7637 6819 0 0 0.00% 0.00%
B 7636 6818 2 2 0.03% 0.03%
C 7637 6819 31 31 0.41% 0.45%
D 7637 6819 2542 2542 33.29% 37.28%

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 13 16026 86.16 874 854 176.1
A 13 254 12282 64.9 874 854 176.1
A 3 137 8482 43.32 874 854 176.1
B 12 111 20120 116.22 861 839 165.9
B 11 111 18406 105.89 861 839 165.9
B 14 111 17265 99.01 861 839 165.9
C 3 233 815826 4137.34 841 849 197.0
C 7 247 351059 1777.89 841 849 197.0
C 14 238 139431 703.53 841 849 197.0
D 8 195 6831138 35913.88 800 779 190.2
D 7 80 1690817 8886.18 800 779 190.2
D 7 223 537982 2824.6 800 779 190.2

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