ASTROSAT CZTI

Data Quality Report

Orbit 30247

Creation date: 2024-06-27T20:12:38.982039
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/AS1A10_007T01_9000004350_30247cztM0_level2.evt modeM0/AS1A10_007T01_9000004350_30247cztM0_level2_quad_clean.evt
Size (bytes)548,421,12085,291,200
Size523.0 MB 81.3 MB
Events in quadrant A3,493,365528,800
Events in quadrant B5,505,224529,790
Events in quadrant C3,555,812515,140
Events in quadrant D3,573,757515,127

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0160
B0160
C0160
D0160

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01460
B01460
C01460
D01460

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0147932
B0214622
C0148842
D0150823

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A7091751.057679%
B70921231.734349%
C70922022.848280%
D7091340.479481%

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 8711 7093 10 10 0.11% 0.14%
B 8712 7094 6 6 0.07% 0.08%
C 8712 7093 0 0 0.00% 0.00%
D 8711 7092 5 5 0.06% 0.07%

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 13 73991 413.49 878 858 176.9
A 8 192 27191 148.89 878 858 176.9
A 13 254 13067 69.03 878 858 176.9
B 6 159 2016968 11858.04 869 847 170.0
B 6 36 30345 173.5 869 847 170.0
B 0 229 24489 139.05 869 847 170.0
C 14 238 179950 901.56 841 846 198.7
C 14 254 65431 325.1 841 846 198.7
C 2 114 16419 78.39 841 846 198.7
D 8 195 254736 1203.63 852 831 210.9
D 2 234 32478 150.02 852 831 210.9
D 10 199 31132 143.64 852 831 210.9

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