ASTROSAT CZTI

Data Quality Report

Orbit 05097

Creation date: 2024-06-27T14:51:16.494074
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_105T01_9000000644_05097cztM0_level2.evt modeM0/AS1G05_105T01_9000000644_05097cztM0_level2_quad_clean.evt
Size (bytes)551,226,24082,183,680
Size525.7 MB 78.4 MB
Events in quadrant A3,211,657532,785
Events in quadrant B3,666,183528,188
Events in quadrant C3,105,851503,087
Events in quadrant D6,235,233436,959

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01440
B01440
C01440
D01440

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140
B0140
C0140
D0150

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0144283
B0154122
C0143332
D0234082

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A69861532.190094%
B69861832.619525%
C69861241.774979%
D6986115616.547380%

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 7856 6987 1 1 0.01% 0.01%
B 7856 6987 19 19 0.24% 0.27%
C 7856 6987 0 0 0.00% 0.00%
D 7856 6987 849 849 10.81% 12.15%

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 50 29620 173.33 824 807 166.2
A 12 194 8176 44.33 824 807 166.2
A 0 226 7966 43.07 824 807 166.2
B 4 80 315387 1997.59 826 806 157.5
B 15 204 92658 583.26 826 806 157.5
B 15 54 22964 140.7 826 806 157.5
C 12 4 13714 70.89 789 791 182.3
C 1 16 8442 41.97 789 791 182.3
C 13 61 6468 31.14 789 791 182.3
D 13 235 2450702 13572.5 739 714 180.5
D 13 239 687852 3806.62 739 714 180.5
D 12 233 121390 668.52 739 714 180.5

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