ASTROSAT CZTI

Data Quality Report

Orbit 26592

Creation date: 2024-06-27T19:30:47.488736
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/AS1A09_095T02_9000003846_26592cztM0_level2.evt modeM0/AS1A09_095T02_9000003846_26592cztM0_level2_quad_clean.evt
Size (bytes)611,686,08083,102,400
Size583.3 MB 79.3 MB
Events in quadrant A3,076,738566,566
Events in quadrant B3,596,041573,273
Events in quadrant C3,447,136537,463
Events in quadrant D7,996,460417,577

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0128080
B0145470
C0139080
D0278910

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6031791.309899%
B60311222.022882%
C60311672.769027%
D6031197032.664566%

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 7206 6031 0 0 0.00% 0.00%
B 7206 6031 28 28 0.39% 0.46%
C 7206 6031 37 37 0.51% 0.61%
D 7206 6031 1557 1557 21.61% 25.82%

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 59279 382.74 780 767 152.9
A 13 254 9009 53.91 780 767 152.9
A 5 168 7935 46.89 780 767 152.9
B 0 189 363356 2548.5 772 758 142.3
B 3 64 98338 685.84 772 758 142.3
B 15 33 53319 369.42 772 758 142.3
C 15 208 303995 1789.45 736 743 169.5
C 3 233 137768 808.57 736 743 169.5
C 14 238 121228 710.97 736 743 169.5
D 7 80 4279675 28649.32 625 606 149.4
D 1 52 1028866 6884.43 625 606 149.4
D 2 250 194273 1296.64 625 606 149.4

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
_ROLL_ROT
_Roll_DEC
_Roll_RA
Veto Counter