ASTROSAT CZTI

Data Quality Report

Orbit 09744

Creation date: 2024-06-27T15:50:08.644629
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/AS1A03_114T01_9000001390_09744cztM0_level2.evt modeM0/AS1A03_114T01_9000001390_09744cztM0_level2_quad_clean.evt
Size (bytes)461,039,04074,799,360
Size439.7 MB 71.3 MB
Events in quadrant A3,355,156444,564
Events in quadrant B3,400,954454,304
Events in quadrant C3,305,727443,189
Events in quadrant D3,413,889424,539

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01480811
B01482312
C0148323
D01527017

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01500
B01500
C01500
D01500

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140
B0140
C0140
D0140

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A71511762.461194%
B71501882.629371%
C71541452.026838%
D71511692.363306%

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 8510 7158 0 0 0.00% 0.00%
B 8510 7158 0 0 0.00% 0.00%
C 8510 7158 0 0 0.00% 0.00%
D 8510 7158 25 25 0.29% 0.35%

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 0 226 8012 40.04 872 854 178.8
A 12 194 6959 34.15 872 854 178.8
A 13 253 4822 22.2 872 854 178.8
B 12 111 20510 115.7 872 849 169.9
B 11 111 16926 94.61 872 849 169.9
B 14 111 13735 75.83 872 849 169.9
C 13 61 6168 26.81 845 849 198.4
C 8 222 5238 22.12 845 849 198.4
C 9 237 5156 21.71 845 849 198.4
D 1 52 114500 521.25 834 814 218.1
D 13 137 67012 303.52 834 814 218.1
D 10 199 23351 103.33 834 814 218.1

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