ASTROSAT CZTI

Data Quality Report

Orbit 29717

Creation date: 2024-06-27T20:07:07.073038
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_007T01_9000004276_29717cztM0_level2.evt modeM0/AS1A10_007T01_9000004276_29717cztM0_level2_quad_clean.evt
Size (bytes)632,640,96092,105,280
Size603.3 MB 87.8 MB
Events in quadrant A3,147,894620,373
Events in quadrant B5,216,618628,480
Events in quadrant C6,475,990542,159
Events in quadrant D3,921,250586,110

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01200
B01200
C01200
D01200

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0129771
B0192211
C0236291
D0156231

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5894681.153716%
B58942063.495080%
C5894101917.288768%
D5894500.848320%

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 7229 5894 0 0 0.00% 0.00%
B 7229 5894 31 31 0.43% 0.53%
C 7229 5894 720 720 9.96% 12.22%
D 7229 5895 6 6 0.08% 0.10%

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 13 254 12047 68.93 815 800 163.2
A 3 137 7617 41.78 815 800 163.2
A 0 226 6880 37.26 815 800 163.2
B 6 159 1816789 12000.23 809 793 151.3
B 0 229 129827 852.67 809 793 151.3
B 10 245 39689 257.03 809 793 151.3
C 3 233 3330604 19208.08 741 748 173.4
C 14 238 122210 700.65 741 748 173.4
C 10 22 74285 424.19 741 748 173.4
D 8 195 769805 4173.95 786 769 184.2
D 13 172 64850 347.8 786 769 184.2
D 12 227 38291 203.65 786 769 184.2

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