ASTROSAT CZTI

Data Quality Report

Orbit 32242

Creation date: 2024-06-27T20:37:59.955694
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_054T01_9000004694_32242cztM0_level2.evt modeM0/AS1T04_054T01_9000004694_32242cztM0_level2_quad_clean.evt
Size (bytes)745,395,84093,142,080
Size710.9 MB 88.8 MB
Events in quadrant A4,022,709584,982
Events in quadrant B7,884,161564,234
Events in quadrant C4,526,463557,611
Events in quadrant D5,587,006544,272

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01680
B01680
C01680
D01680

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0171303
B0293202
C0183412
D0218602

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A030
B030
C030
D030

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A81844004.887586%
B818492811.339198%
C81846998.541056%
D81843524.301075%

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 8518 8185 1 1 0.01% 0.01%
B 8519 8186 297 297 3.49% 3.63%
C 8518 8185 0 0 0.00% 0.00%
D 8519 8186 61 61 0.72% 0.75%

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 12 96 20234 91.45 1029 1002 210.3
A 13 6 19781 89.3 1029 1002 210.3
A 13 254 15498 68.93 1029 1002 210.3
B 6 159 2155982 11054.38 1003 973 194.9
B 0 168 1556789 7980.75 1003 973 194.9
B 5 172 119894 610.02 1003 973 194.9
C 14 238 264696 1147.24 978 981 229.9
C 3 233 238272 1032.29 978 981 229.9
C 14 254 148770 642.93 978 981 229.9
D 8 195 1364265 5699.26 997 967 239.2
D 12 233 291703 1215.42 997 967 239.2
D 12 79 68333 281.62 997 967 239.2

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