ASTROSAT CZTI

Data Quality Report

Orbit 08711

Creation date: 2024-06-27T15:36:25.952966
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/AS1G07_027T01_9000001210_08711cztM0_level2.evt modeM0/AS1G07_027T01_9000001210_08711cztM0_level2_quad_clean.evt
Size (bytes)450,034,56070,744,320
Size429.2 MB 67.5 MB
Events in quadrant A3,181,938431,258
Events in quadrant B3,127,714432,451
Events in quadrant C3,050,510431,992
Events in quadrant D3,851,991417,688

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01240
B01240
C01240
D01240

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0133642
B0131261
C0129261
D0154511

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6142711.155975%
B6142570.928036%
C6142490.797786%
D61423044.949528%

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 7372 6142 11 11 0.15% 0.18%
B 7372 6142 1 1 0.01% 0.02%
C 7372 6142 0 0 0.00% 0.00%
D 7372 6142 179 179 2.43% 2.91%

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 13 251 83048 513.45 795 781 160.2
A 15 174 27208 164.94 795 781 160.2
A 0 254 9306 53.21 795 781 160.2
B 12 111 14905 94.29 798 782 149.8
B 11 111 12199 76.23 798 782 149.8
B 0 219 8424 51.02 798 782 149.8
C 13 61 6045 29.2 780 785 180.1
C 14 234 5257 24.83 780 785 180.1
C 14 67 3763 16.53 780 785 180.1
D 2 152 511330 2768.51 754 736 184.4
D 1 52 171487 925.84 754 736 184.4
D 7 55 80423 432.07 754 736 184.4

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