ASTROSAT CZTI

Data Quality Report

Orbit 17097

Creation date: 2024-06-27T17:32:01.930356
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_004T06_9000002536_17097cztM0_level2.evt modeM0/AS1A05_004T06_9000002536_17097cztM0_level2_quad_clean.evt
Size (bytes)482,244,48079,159,680
Size459.9 MB 75.5 MB
Events in quadrant A3,435,259482,645
Events in quadrant B3,577,776488,616
Events in quadrant C3,503,998466,596
Events in quadrant D3,598,491457,867

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01460
B01460
C01460
D01460

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0149852
B0151882
C0149832
D0157443

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0200
B0200
C0200
D0200

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A72051201.665510%
B72061592.206495%
C72061502.081599%
D72051011.401804%

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 9100 7208 0 0 0.00% 0.00%
B 9101 7209 0 0 0.00% 0.00%
C 9101 7209 0 0 0.00% 0.00%
D 9100 7207 30 30 0.33% 0.42%

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 4 2 42389 231.58 881 862 179.3
A 0 226 7505 37.05 881 862 179.3
A 12 194 6448 31.15 881 862 179.3
B 0 229 42840 246.23 885 861 170.5
B 0 197 23271 131.45 885 861 170.5
B 4 216 23116 130.54 885 861 170.5
C 14 238 132116 658.45 848 854 199.3
C 3 233 35167 172.13 848 854 199.3
C 7 247 20048 96.28 848 854 199.3
D 1 52 197233 939.26 856 829 209.1
D 5 222 124900 593.34 856 829 209.1
D 2 234 27162 125.93 856 829 209.1

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