ASTROSAT CZTI

Data Quality Report

Orbit 05517

Creation date: 2024-06-27T14:56:11.812616
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/AS1G06_168T23_9000000706_05517cztM0_level2.evt modeM0/AS1G06_168T23_9000000706_05517cztM0_level2_quad_clean.evt
Size (bytes)443,373,12060,382,080
Size422.8 MB 57.6 MB
Events in quadrant A2,845,490366,008
Events in quadrant B3,257,928355,635
Events in quadrant C3,892,007342,334
Events in quadrant D3,026,532347,147

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0127292
B0137941
C0156211
D0132061

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A080
B080
C080
D080

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01220
B01220
C01220
D01220

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5968651.089142%
B5968801.340483%
C59682193.669571%
D5968160.268097%

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 6838 5968 31 31 0.45% 0.52%
B 6838 5969 35 35 0.51% 0.59%
C 6838 5969 142 142 2.08% 2.38%
D 6838 5969 6 6 0.09% 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 0 50 95880 679.37 684 670 140.1
A 15 174 83994 594.56 684 670 140.1
A 7 16 20180 139.21 684 670 140.1
B 15 204 191071 1412.29 691 674 134.8
B 4 81 110053 811.33 691 674 134.8
B 10 16 88607 652.25 691 674 134.8
C 9 247 1267587 8186.18 655 659 154.8
C 14 67 16615 103.1 655 659 154.8
C 1 16 14384 88.68 655 659 154.8
D 2 152 185150 1121.39 665 645 164.5
D 8 195 113512 685.98 665 645 164.5
D 5 97 42180 252.44 665 645 164.5

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