ASTROSAT CZTI

Data Quality Report

Orbit 32325

Creation date: 2024-06-27T20:38:53.707933
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/AS1A10_005T01_9000004700_32325cztM0_level2.evt modeM0/AS1A10_005T01_9000004700_32325cztM0_level2_quad_clean.evt
Size (bytes)799,485,12078,534,720
Size762.4 MB 74.9 MB
Events in quadrant A3,318,227521,077
Events in quadrant B6,523,618486,589
Events in quadrant C6,890,309445,602
Events in quadrant D7,023,036451,196

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140653
B0242712
C0248852
D0254992

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0150
B0150
C0150
D0160

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01360
B01360
C01360
D01360

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6790310.456554%
B67906028.865979%
C6790143621.148748%
D679078111.502209%

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 7840 6791 0 0 0.00% 0.00%
B 7840 6791 252 252 3.21% 3.71%
C 7840 6791 932 932 11.89% 13.72%
D 7840 6791 683 683 8.71% 10.06%

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 22904 130.39 847 831 169.3
A 13 254 12865 71.09 847 831 169.3
A 12 96 10284 55.84 847 831 169.3
B 6 159 1909972 12314.92 821 801 155.0
B 5 172 637165 4104.8 821 801 155.0
B 10 245 525005 3381.33 821 801 155.0
C 0 10 3307529 18840.97 752 756 175.5
C 3 233 411654 2341.17 752 756 175.5
C 14 238 123432 698.97 752 756 175.5
D 13 174 1859000 9762.47 790 770 190.3
D 8 195 1286344 6753.94 790 770 190.3
D 11 176 394408 2068.03 790 770 190.3

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