ASTROSAT CZTI

Data Quality Report

Orbit 17083

Creation date: 2024-06-27T17:31:50.082663
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_004T04_9000002534_17083cztM0_level2.evt modeM0/AS1A05_004T04_9000002534_17083cztM0_level2_quad_clean.evt
Size (bytes)540,630,72089,421,120
Size515.6 MB 85.3 MB
Events in quadrant A3,646,861553,567
Events in quadrant B3,820,293561,830
Events in quadrant C4,577,563531,291
Events in quadrant D3,805,316525,258

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0159623
B0162373
C0186383
D0168003

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01580
B01580
C01580
D01580

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140
B0140
C0140
D0140

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A77031922.492535%
B77042192.842679%
C77042553.309969%
D77032072.687265%

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 9133 7705 0 0 0.00% 0.00%
B 9134 7705 0 0 0.00% 0.00%
C 9134 7707 0 0 0.00% 0.00%
D 9133 7705 56 56 0.61% 0.73%

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 9435 44.46 945 923 191.5
A 0 226 8160 37.8 945 923 191.5
A 3 137 7056 32.03 945 923 191.5
B 3 209 35702 190.62 948 920 182.5
B 0 197 24986 131.89 948 920 182.5
B 12 111 21833 114.61 948 920 182.5
C 3 233 875015 4108.55 908 912 212.8
C 14 238 137672 642.81 908 912 212.8
C 7 247 21197 95.34 908 912 212.8
D 10 70 218555 981.41 917 889 221.8
D 1 52 50013 221.49 917 889 221.8
D 15 0 34985 153.73 917 889 221.8

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