ASTROSAT CZTI

Data Quality Report

Orbit 32097

Creation date: 2024-06-27T20:36:27.200242
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_051T01_9000004686_32097cztM0_level2.evt modeM0/AS1T04_051T01_9000004686_32097cztM0_level2_quad_clean.evt
Size (bytes)165,453,12020,370,240
Size157.8 MB 19.4 MB
Events in quadrant A536,609147,958
Events in quadrant B996,213144,193
Events in quadrant C785,712138,394
Events in quadrant D2,612,94899,412

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0230011
B0372518
C0307348
D08680159

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0220
B0220
C0220
D0220

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A113810.087873%
B1138302.636204%
C1131817.161804%
D112291181.194296%

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 1141 1141 0 0 0.00% 0.00%
B 1141 1140 11 11 0.96% 0.96%
C 1143 1141 59 59 5.16% 5.17%
D 1141 1125 980 980 85.89% 87.11%

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 6 7456 246.01 136 133 29.8
A 13 254 2173 68.53 136 133 29.8
A 2 79 1482 45.32 136 133 29.8
B 6 159 355663 12830.44 132 129 27.7
B 0 190 76122 2742.42 132 129 27.7
B 5 172 17144 614.03 132 129 27.7
C 0 10 253509 8337.38 123 123 30.4
C 14 238 28230 924.83 123 123 30.4
C 14 254 12218 397.97 123 123 30.4
D 12 79 1345892 50716.74 101 98 26.5
D 8 195 343230 12931.05 101 98 26.5
D 12 227 334154 12589.02 101 98 26.5

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