ASTROSAT CZTI

Data Quality Report

Orbit 12323

Creation date: 2024-06-27T16:25:28.423748
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/AS1A04_048T01_9000001820_12323cztM0_level2.evt modeM0/AS1A04_048T01_9000001820_12323cztM0_level2_quad_clean.evt
Size (bytes)617,201,28081,138,240
Size588.6 MB 77.4 MB
Events in quadrant A5,222,200481,517
Events in quadrant B5,215,767485,048
Events in quadrant C3,671,787489,993
Events in quadrant D4,064,726469,149

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01560
B01560
C01560
D01560

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0207403
B0205022
C0162502
D0173042

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A070
B070
C070
D070

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A76373514.596046%
B763778010.213435%
C76371441.885557%
D76372062.697394%

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 8303 7640 0 0 0.00% 0.00%
B 8303 7640 345 345 4.16% 4.52%
C 8303 7640 12 12 0.14% 0.16%
D 8303 7640 47 47 0.57% 0.62%

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 23 424630 2221.44 926 904 190.7
A 1 162 314199 1642.49 926 904 190.7
A 15 174 255791 1336.28 926 904 190.7
B 4 239 1304156 7464.87 897 872 174.6
B 0 85 216331 1234.09 897 872 174.6
B 3 64 56889 320.85 897 872 174.6
C 4 254 59249 276.53 904 907 211.0
C 0 207 48568 225.91 904 907 211.0
C 15 208 24816 113.33 904 907 211.0
D 1 52 109783 494.05 905 881 220.4
D 13 104 104311 469.23 905 881 220.4
D 5 222 70403 315.4 905 881 220.4

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