ASTROSAT CZTI

Data Quality Report

Orbit 03290

Creation date: 2024-06-27T14:27:12.888527
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_228T02_9000000446_03290cztM0_level2.evt modeM0/AS1G05_228T02_9000000446_03290cztM0_level2_quad_clean.evt
Size (bytes)496,638,72081,095,040
Size473.6 MB 77.3 MB
Events in quadrant A3,407,378490,725
Events in quadrant B4,167,198489,156
Events in quadrant C3,593,954493,850
Events in quadrant D3,380,473478,188

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01440
B01440
C01440
D01440

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0152751
B0167930
C0156990
D0154810

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A72382333.219121%
B72382623.619784%
C72381151.588837%
D72381301.796076%

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 7238 7238 8 8 0.11% 0.11%
B 7238 7238 21 21 0.29% 0.29%
C 7238 7238 11 11 0.15% 0.15%
D 7238 7238 18 18 0.25% 0.25%

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 78482 436.74 854 836 177.8
A 14 249 19799 106.66 854 836 177.8
A 0 226 15983 85.2 854 836 177.8
B 15 204 593520 3512.83 859 837 168.7
B 2 249 119756 704.83 859 837 168.7
B 14 167 64179 375.43 859 837 168.7
C 6 80 127314 643.32 831 832 196.6
C 2 53 94753 477.7 831 832 196.6
C 7 220 70427 353.98 831 832 196.6
D 5 233 117341 574.44 832 805 202.9
D 13 223 59834 290.97 832 805 202.9
D 13 239 31008 148.88 832 805 202.9

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