ASTROSAT CZTI

Data Quality Report

Orbit 13016

Creation date: 2024-06-27T16:35:07.444955
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/AS1T02_002T01_9000001914_13016cztM0_level2.evt modeM0/AS1T02_002T01_9000001914_13016cztM0_level2_quad_clean.evt
Size (bytes)549,567,360123,376,320
Size524.1 MB 117.7 MB
Events in quadrant A3,603,082837,028
Events in quadrant B5,608,566748,981
Events in quadrant C3,146,956850,976
Events in quadrant D3,810,508812,518

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A030
B030
C030
D030

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0153722
B0212651
C0144811
D0161581

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01420
B01420
C01420
D01420

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A69841832.620275%
B6984122017.468499%
C6984410.587056%
D69841472.104811%

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 7290 6986 107 107 1.47% 1.53%
B 7289 6985 794 794 10.89% 11.37%
C 7290 6986 8 8 0.11% 0.11%
D 7290 6986 92 92 1.26% 1.32%

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 15 223 277760 1739.93 785 767 159.2
A 15 239 108374 675.93 785 767 159.2
A 12 189 105946 660.68 785 767 159.2
B 4 239 2431299 17936.45 709 689 135.5
B 3 64 242086 1781.37 709 689 135.5
B 3 209 43924 319.05 709 689 135.5
C 0 207 92166 511.83 778 781 178.5
C 14 234 20614 111.08 778 781 178.5
C 13 61 5744 27.8 778 781 178.5
D 1 52 795541 4290.69 774 752 185.2
D 8 195 61842 329.8 774 752 185.2
D 2 234 25335 132.71 774 752 185.2

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