ASTROSAT CZTI

Data Quality Report

Orbit 10579

Creation date: 2024-06-27T16:01:02.148070
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/AS1G07_046T01_9000001534_10579cztM0_level2.evt modeM0/AS1G07_046T01_9000001534_10579cztM0_level2_quad_clean.evt
Size (bytes)453,421,44078,652,800
Size432.4 MB 75.0 MB
Events in quadrant A2,832,547505,601
Events in quadrant B4,490,610497,907
Events in quadrant C2,732,836501,802
Events in quadrant D3,280,878469,705

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01180
B01180
C01180
D01180

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0121442
B0171221
C0119671
D0134951

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5817530.911123%
B58174728.114148%
C5817330.567303%
D5817370.636067%

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 7077 5818 0 0 0.00% 0.00%
B 7077 5818 335 335 4.73% 5.76%
C 7077 5818 5 5 0.07% 0.09%
D 7077 5818 12 12 0.17% 0.21%

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 13 251 46831 318.28 713 698 144.9
A 1 162 22690 151.73 713 698 144.9
A 0 226 6524 40.19 713 698 144.9
B 4 239 1500191 11246.78 707 693 133.3
B 0 219 89380 665.18 707 693 133.3
B 4 81 35323 259.74 707 693 133.3
C 3 254 14116 82.44 695 701 162.7
C 4 175 6355 34.75 695 701 162.7
C 13 61 5173 27.48 695 701 162.7
D 2 16 309730 1877.91 683 666 164.6
D 8 195 179702 1087.84 683 666 164.6
D 10 199 47593 285.13 683 666 164.6

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