ASTROSAT CZTI

Data Quality Report

Orbit 05867

Creation date: 2024-06-27T15:00:13.495392
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/AS1G06_033T01_9000000760_05867cztM0_level2.evt modeM0/AS1G06_033T01_9000000760_05867cztM0_level2_quad_clean.evt
Size (bytes)517,757,76087,145,920
Size493.8 MB 83.1 MB
Events in quadrant A3,441,548540,269
Events in quadrant B3,688,281542,016
Events in quadrant C3,376,351543,525
Events in quadrant D4,676,366503,016

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01482
B01480
C01480
D01480

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A015553132
B015928147
C015496138
D019093487

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A73322203.000546%
B73282433.316048%
C7330951.296044%
D72933665.018511%

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 7396 7388 0 0 0.00% 0.00%
B 7396 7391 8 8 0.11% 0.11%
C 7396 7394 0 0 0.00% 0.00%
D 7396 7374 154 154 2.08% 2.09%

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 19872 102.96 888 869 184.6
A 12 194 8680 42.32 888 869 184.6
A 0 226 8627 42.03 888 869 184.6
B 15 204 70507 394.91 894 872 176.3
B 4 81 47900 266.7 894 872 176.3
B 0 219 32573 179.78 894 872 176.3
C 1 16 9257 41.03 861 866 204.5
C 13 61 6911 29.56 861 866 204.5
C 8 128 3593 13.34 861 866 204.5
D 2 152 687952 3182.75 851 824 215.9
D 2 136 292291 1350.06 851 824 215.9
D 11 241 285394 1318.12 851 824 215.9

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