ASTROSAT CZTI

Data Quality Report

Orbit 03473

Creation date: 2024-06-27T14:29:51.401877
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/AS1G05_245T01_9000000460_03473cztM0_level2.evt modeM0/AS1G05_245T01_9000000460_03473cztM0_level2_quad_clean.evt
Size (bytes)474,966,72094,366,080
Size453.0 MB 90.0 MB
Events in quadrant A3,365,738593,181
Events in quadrant B3,799,194599,881
Events in quadrant C3,472,970610,156
Events in quadrant D3,285,809582,161

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0145523
B0157162
C0148102
D0145452

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01400
B01400
C01400
D01400

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0250
B0250
C0250
D0250

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A67781452.139274%
B67781732.552375%
C67782022.980230%
D67781382.035999%

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 9268 6779 0 0 0.00% 0.00%
B 9268 6779 12 12 0.13% 0.18%
C 9268 6778 49 49 0.53% 0.72%
D 9268 6779 14 14 0.15% 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 8 15 54652 312.39 843 825 172.3
A 0 50 26943 151.58 843 825 172.3
A 14 238 16433 90.58 843 825 172.3
B 15 204 362794 2214.62 854 832 163.4
B 2 249 75951 459.61 854 832 163.4
B 4 200 21049 123.7 854 832 163.4
C 1 192 182193 938.02 835 841 193.3
C 1 16 13214 64.0 835 841 193.3
C 9 144 7379 33.82 835 841 193.3
D 13 46 63123 315.6 831 809 197.4
D 10 172 27660 135.99 831 809 197.4
D 7 223 23366 114.24 831 809 197.4

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
Veto Counter