ASTROSAT CZTI

Data Quality Report

Orbit 32143

Creation date: 2024-06-27T20:36:56.723872
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_32143cztM0_level2.evt modeM0/AS1T04_051T01_9000004686_32143cztM0_level2_quad_clean.evt
Size (bytes)1,810,572,480239,437,440
Size1.7 GB 228.3 MB
Events in quadrant A8,522,7011,576,939
Events in quadrant B19,325,7871,462,324
Events in quadrant C9,202,3131,535,985
Events in quadrant D16,571,7241,433,386

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0180
B0180
C0180
D0180

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0368813
B0697153
C0385863
D0625033

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A03660
B03660
C03660
D03660

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A180211300.721381%
B18020216412.008879%
C180204132.291898%
D1802110826.004106%

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 19791 18024 0 0 0.00% 0.00%
B 19790 18023 1345 1345 6.80% 7.46%
C 19790 18023 55 55 0.28% 0.31%
D 19791 18024 965 965 4.88% 5.35%

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 46569 100.83 2191 2141 440.6
A 13 254 36203 77.3 2191 2141 440.6
A 3 137 22199 45.52 2191 2141 440.6
B 6 159 5222820 13135.28 2100 2048 397.5
B 10 245 4633175 11651.76 2100 2048 397.5
B 5 172 668483 1676.73 2100 2048 397.5
C 0 10 402579 817.03 2086 2100 490.2
C 14 238 382490 776.05 2086 2100 490.2
C 3 233 74421 147.54 2086 2100 490.2
D 8 195 5627409 11310.73 2069 2012 497.4
D 12 218 1420575 2852.24 2069 2012 497.4
D 12 233 1109001 2225.77 2069 2012 497.4

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