ASTROSAT CZTI

Data Quality Report

Orbit 30048

Creation date: 2024-06-27T20:10:14.503401
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/AS1A10_071T09_9000004320_30048cztM0_level2.evt modeM0/AS1A10_071T09_9000004320_30048cztM0_level2_quad_clean.evt
Size (bytes)498,821,76082,958,400
Size475.7 MB 79.1 MB
Events in quadrant A3,214,263533,067
Events in quadrant B4,979,897537,427
Events in quadrant C3,290,608502,587
Events in quadrant D3,195,272499,758

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0132612
B0191012
C0134902
D0134412

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0140
C0140
D0140

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6293370.587955%
B6293651.032894%
C62931422.256475%
D6293240.381376%

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 7483 6294 3 3 0.04% 0.05%
B 7483 6294 2 2 0.03% 0.03%
C 7483 6294 3 3 0.04% 0.05%
D 7483 6294 8 8 0.11% 0.13%

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 8 192 27256 160.63 825 811 164.6
A 13 254 11165 62.89 825 811 164.6
A 3 137 7907 43.1 825 811 164.6
B 6 159 1725895 11094.06 817 796 155.5
B 10 247 31413 196.9 817 796 155.5
B 12 111 19061 117.46 817 796 155.5
C 14 238 160264 869.06 778 784 183.5
C 14 254 45251 242.32 778 784 183.5
C 3 233 24077 126.93 778 784 183.5
D 8 195 113538 612.67 781 764 184.1
D 2 250 76651 412.27 781 764 184.1
D 2 234 21940 115.04 781 764 184.1

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