ASTROSAT CZTI

Data Quality Report

Orbit 07486

Creation date: 2024-06-27T15:20:21.170626
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/AS1A02_165T03_9000001032_07486cztM0_level2.evt modeM0/AS1A02_165T03_9000001032_07486cztM0_level2_quad_clean.evt
Size (bytes)463,847,04097,551,360
Size442.4 MB 93.0 MB
Events in quadrant A3,178,069617,105
Events in quadrant B3,339,390629,895
Events in quadrant C3,175,087626,648
Events in quadrant D3,877,304591,057

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A070
B070
C070
D080

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01420
B01420
C01420
D01420

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0144793
B0148342
C0144962
D0168472

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A7031280.398236%
B7031831.180486%
C7031380.540464%
D70312012.858768%

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 7621 7032 0 0 0.00% 0.00%
B 7621 7032 9 9 0.12% 0.13%
C 7621 7032 2 2 0.03% 0.03%
D 7621 7032 142 142 1.86% 2.02%

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 15 239 19128 109.75 818 800 167.0
A 0 226 7790 41.86 818 800 167.0
A 12 194 7264 38.71 818 800 167.0
B 0 214 59035 366.41 830 808 158.9
B 0 85 26810 163.62 830 808 158.9
B 12 111 16818 100.75 830 808 158.9
C 1 16 20446 103.98 807 810 188.8
C 13 61 6135 28.2 807 810 188.8
C 12 4 4341 18.7 807 810 188.8
D 2 152 324271 1649.14 793 765 196.2
D 12 233 313960 1596.58 793 765 196.2
D 2 14 101887 515.49 793 765 196.2

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