ASTROSAT CZTI

Data Quality Report

Orbit 03382

Creation date: 2024-06-27T14:28:17.409798
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/AS1G05_112T01_9000000452_03382cztM0_level2.evt modeM0/AS1G05_112T01_9000000452_03382cztM0_level2_quad_clean.evt
Size (bytes)499,288,32078,261,120
Size476.2 MB 74.6 MB
Events in quadrant A3,652,720475,601
Events in quadrant B4,199,768465,696
Events in quadrant C3,403,302466,197
Events in quadrant D3,367,151451,834

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0200
B0200
C0200
D0200

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01480
B01480
C01480
D01480

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0156773
B0174402
C0151592
D0153702

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A73391211.648726%
B73392263.079439%
C7339841.144570%
D7339961.308080%

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 9209 7341 7 7 0.08% 0.10%
B 9209 7341 54 54 0.59% 0.74%
C 9209 7341 1 1 0.01% 0.01%
D 9209 7341 7 7 0.08% 0.10%

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 0 118 108156 589.04 881 861 182.2
A 8 15 93216 507.02 881 861 182.2
A 14 249 41230 221.62 881 861 182.2
B 2 249 258371 1489.19 886 865 172.9
B 15 204 216931 1249.54 886 865 172.9
B 3 0 104178 597.47 886 865 172.9
C 1 192 18327 87.04 855 860 200.7
C 12 4 13252 61.75 855 860 200.7
C 1 16 12525 58.13 855 860 200.7
D 13 223 66413 314.02 853 825 208.9
D 14 34 27976 129.99 853 825 208.9
D 5 233 25771 119.43 853 825 208.9

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