ASTROSAT CZTI

Data Quality Report

Orbit 41832

Creation date: 2024-06-27T22:33:20.609529
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/AS1A12_097T03_9000005706_41832cztM0_level2.fits modeM0/AS1A12_097T03_9000005706_41832cztM0_level2_quad_clean.evt
Size (bytes)77,647,68019,379,520
Size74.1 MB 18.5 MB
Events in quadrant A569,774130,112
Events in quadrant B523,620129,987
Events in quadrant C582,910123,910
Events in quadrant D1,100,749111,844

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A024370
B024730
C025100
D040800

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0240
B0240
C0240
D0240

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A121000.000000%
B121010.082645%
C121050.413223%
D1210867.107438%

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 1210 1210 0 0 0.00% 0.00%
B 1210 1210 1 1 0.08% 0.08%
C 1210 1210 3 3 0.25% 0.25%
D 1210 1210 106 106 8.76% 8.76%

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 10 83 88020 3192.25 123 120 27.5
A 7 3 2740 95.15 123 120 27.5
A 13 254 1957 66.71 123 120 27.5
B 4 141 13116 497.89 123 119 26.1
B 0 183 9956 376.83 123 119 26.1
B 0 245 7055 265.7 123 119 26.1
C 15 214 46597 1483.87 124 124 31.3
C 0 10 29626 941.99 124 124 31.3
C 14 254 22051 700.12 124 124 31.3
D 5 222 314039 10068.27 119 115 31.2
D 13 249 182125 5837.48 119 115 31.2
D 7 112 52534 1681.2 119 115 31.2

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