ASTROSAT CZTI

Data Quality Report

Orbit 17963

Creation date: 2024-06-27T17:43:12.472864
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/AS1A05_019T01_9000002672_17963cztM0_level2.evt modeM0/AS1A05_019T01_9000002672_17963cztM0_level2_quad_clean.evt
Size (bytes)465,609,60098,182,080
Size444.0 MB 93.6 MB
Events in quadrant A3,646,407646,524
Events in quadrant B3,534,787651,295
Events in quadrant C3,224,292615,914
Events in quadrant D3,263,608615,825

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0149191
B0145901
C0134411
D0137641

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0170
B0180
C0180
D0180

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A63651111.743912%
B6365711.115475%
C6365751.178319%
D6365390.612726%

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 7715 6366 64 64 0.83% 1.01%
B 7715 6366 25 25 0.32% 0.39%
C 7715 6366 0 0 0.00% 0.00%
D 7715 6366 7 7 0.09% 0.11%

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 15 174 263553 1589.9 823 807 165.3
A 14 237 216243 1303.63 823 807 165.3
A 0 226 7151 38.39 823 807 165.3
B 7 220 223506 1452.26 821 802 153.4
B 0 197 28373 179.79 821 802 153.4
B 4 171 27683 175.29 821 802 153.4
C 14 238 123239 669.11 790 798 183.0
C 3 233 18117 94.64 790 798 183.0
C 13 61 5773 27.19 790 798 183.0
D 5 222 72927 364.59 810 787 197.9
D 7 238 60210 300.32 810 787 197.9
D 2 234 27295 133.97 810 787 197.9

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