ASTROSAT CZTI

Data Quality Report

Orbit 30396

Creation date: 2024-06-27T20:14:40.942008
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/AS1T04_006T01_9000004370_30396cztM0_level2.evt modeM0/AS1T04_006T01_9000004370_30396cztM0_level2_quad_clean.evt
Size (bytes)565,303,68094,775,040
Size539.1 MB 90.4 MB
Events in quadrant A3,705,715624,192
Events in quadrant B5,461,349624,682
Events in quadrant C3,469,380590,621
Events in quadrant D4,053,235586,882

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0210
B0220
C0220
D0220

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0151832
B0203812
C0142642
D0162453

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A63581662.610884%
B63581612.532243%
C63581231.934571%
D63571872.941639%

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 7583 6358 47 47 0.62% 0.74%
B 7583 6358 5 5 0.07% 0.08%
C 7583 6358 0 0 0.00% 0.00%
D 7582 6357 93 93 1.23% 1.46%

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 13 237571 1359.79 886 871 174.1
A 8 192 24814 137.55 886 871 174.1
A 11 242 18355 100.44 886 871 174.1
B 6 159 1881349 11445.73 878 862 164.3
B 0 229 118652 716.94 878 862 164.3
B 12 111 18843 109.44 878 862 164.3
C 14 238 139029 712.93 838 846 193.8
C 3 233 41265 208.53 838 846 193.8
C 2 114 15499 75.6 838 846 193.8
D 8 195 225452 1026.56 837 824 218.8
D 13 138 192625 876.54 837 824 218.8
D 13 249 187396 852.65 837 824 218.8

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