ASTROSAT CZTI

Data Quality Report

Orbit 28339

Creation date: 2024-06-27T19:50:39.924473
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_116T01_9000004082_28339cztM0_level2.evt modeM0/AS1A10_116T01_9000004082_28339cztM0_level2_quad_clean.evt
Size (bytes)482,667,84096,249,600
Size460.3 MB 91.8 MB
Events in quadrant A3,168,267639,589
Events in quadrant B3,292,634650,310
Events in quadrant C3,119,078603,313
Events in quadrant D4,604,063576,048

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0135580
B0139190
C0133630
D0179550

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6392701.095119%
B6392721.126408%
C6392921.439299%
D63912483.880457%

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 7527 6392 5 5 0.07% 0.08%
B 7527 6392 6 6 0.08% 0.09%
C 7527 6392 0 0 0.00% 0.00%
D 7526 6391 137 137 1.82% 2.14%

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 12 96 45278 276.79 809 793 160.7
A 13 254 11056 63.86 809 793 160.7
A 3 137 7834 43.81 809 793 160.7
B 10 246 40246 257.5 805 785 153.2
B 0 183 32108 204.39 805 785 153.2
B 0 230 28812 182.89 805 785 153.2
C 14 238 124563 694.1 763 769 178.4
C 3 233 15238 81.13 763 769 178.4
C 13 61 5097 24.27 763 769 178.4
D 1 52 1072690 6013.52 756 736 178.3
D 8 195 408444 2287.19 756 736 178.3
D 2 250 138767 774.34 756 736 178.3

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