ASTROSAT CZTI

Data Quality Report

Orbit 28330

Creation date: 2024-06-27T19:50:34.542631
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_116T01_9000004082_28330cztM0_level2.evt modeM0/AS1A10_116T01_9000004082_28330cztM0_level2_quad_clean.evt
Size (bytes)516,453,12075,965,760
Size492.5 MB 72.4 MB
Events in quadrant A3,149,210470,577
Events in quadrant B3,619,729478,918
Events in quadrant C3,968,956452,857
Events in quadrant D4,454,256436,624

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A090
B090
C090
D090

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0134650
B0147750
C0159720
D0175140

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6621430.649449%
B6622951.434612%
C66221321.993355%
D66222123.201450%

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 7486 6622 0 0 0.00% 0.00%
B 7487 6623 14 14 0.19% 0.21%
C 7487 6622 4 4 0.05% 0.06%
D 7487 6623 156 156 2.08% 2.36%

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 13 254 9944 55.83 814 797 163.8
A 3 137 8063 44.35 814 797 163.8
A 0 226 6826 36.8 814 797 163.8
B 10 245 359798 2297.62 813 794 156.3
B 0 183 26421 164.01 813 794 156.3
B 10 246 21529 132.7 813 794 156.3
C 3 233 782882 4281.61 785 791 182.7
C 14 238 125040 680.21 785 791 182.7
C 13 61 5320 24.79 785 791 182.7
D 1 52 1160368 6191.5 783 762 187.3
D 8 195 255740 1361.41 783 762 187.3
D 7 238 28216 146.59 783 762 187.3

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