ASTROSAT CZTI

Data Quality Report

Orbit 08465

Creation date: 2024-06-27T15:33:03.204241
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/AS1A03_074T01_9000001192_08465cztM0_level2.evt modeM0/AS1A03_074T01_9000001192_08465cztM0_level2_quad_clean.evt
Size (bytes)426,985,92087,485,760
Size407.2 MB 83.4 MB
Events in quadrant A3,041,012542,888
Events in quadrant B3,213,614553,088
Events in quadrant C3,059,248560,701
Events in quadrant D3,173,131536,984

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01362
B01360
C01360
D01360

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0230
B0230
C0230
D0230

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0134573
B0139022
C0134772
D0140002

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6533280.428593%
B6533510.780652%
C6533250.382673%
D6533360.551049%

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 8853 6534 0 0 0.00% 0.00%
B 8853 6535 4 4 0.05% 0.06%
C 8853 6535 0 0 0.00% 0.00%
D 8853 6535 20 20 0.23% 0.31%

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 0 226 7273 40.61 789 771 160.1
A 12 194 6914 38.37 789 771 160.1
A 13 251 4670 24.35 789 771 160.1
B 0 214 43161 281.53 796 777 150.5
B 11 51 32963 213.79 796 777 150.5
B 4 81 25770 166.02 796 777 150.5
C 8 128 14228 74.55 777 781 180.4
C 8 112 6237 30.25 777 781 180.4
C 13 61 5866 28.19 777 781 180.4
D 2 152 80800 439.75 766 749 182.0
D 2 14 71869 390.69 766 749 182.0
D 13 105 63772 346.21 766 749 182.0

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