ASTROSAT CZTI

Data Quality Report

Orbit 11699

Creation date: 2024-06-27T16:17:05.427010
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_227T01_9000001724_11699cztM0_level2.evt modeM0/AS1A04_227T01_9000001724_11699cztM0_level2_quad_clean.evt
Size (bytes)831,219,84085,239,360
Size792.7 MB 81.3 MB
Events in quadrant A7,412,618514,195
Events in quadrant B4,464,488557,802
Events in quadrant C3,313,503586,537
Events in quadrant D9,503,885427,523

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0269392
B0176971
C0147131
D0329971

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01420
B01420
C01420
D01420

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A7090143520.239774%
B70905798.166432%
C70901041.466855%
D7090231532.651622%

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 7121 7092 724 724 10.17% 10.21%
B 7121 7092 152 152 2.13% 2.14%
C 7121 7092 0 0 0.00% 0.00%
D 7121 7092 2127 2127 29.87% 29.99%

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 8 5 3562002 21139.67 816 799 168.5
A 1 162 231706 1370.69 816 799 168.5
A 1 178 130400 769.32 816 799 168.5
B 3 64 552371 3336.77 848 824 165.3
B 4 239 458847 2770.97 848 824 165.3
B 15 204 78151 467.81 848 824 165.3
C 13 61 6187 27.08 848 851 197.1
C 8 222 3995 15.95 848 851 197.1
C 14 234 2831 10.05 848 851 197.1
D 13 152 5828798 32738.97 729 705 178.0
D 7 80 294771 1651.9 729 705 178.0
D 10 157 280818 1573.52 729 705 178.0

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