ASTROSAT CZTI

Data Quality Report

Orbit 13980

Creation date: 2024-06-27T16:48:40.925923
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/AS1A04_122T01_9000002064_13980cztM0_level2.evt modeM0/AS1A04_122T01_9000002064_13980cztM0_level2_quad_clean.evt
Size (bytes)513,123,84076,014,720
Size489.4 MB 72.5 MB
Events in quadrant A3,311,707473,724
Events in quadrant B3,408,797502,826
Events in quadrant C3,364,674456,021
Events in quadrant D5,031,121432,706

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0220
B0220
C0220
D0230

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0139093
B0140802
C0138772
D0192802

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6248861.376440%
B6248891.424456%
C6248460.736236%
D62481402.240717%

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 7504 6250 0 0 0.00% 0.00%
B 7504 6250 9 9 0.12% 0.14%
C 7504 6250 0 0 0.00% 0.00%
D 7504 6250 37 37 0.49% 0.59%

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 14 111 34110 198.46 834 818 167.8
A 8 15 32181 186.96 834 818 167.8
A 1 162 16982 96.35 834 818 167.8
B 4 80 46224 290.2 843 830 156.4
B 0 189 33211 207.01 843 830 156.4
B 0 219 20336 124.7 843 830 156.4
C 3 233 242963 1322.32 801 806 183.1
C 13 61 5753 27.01 801 806 183.1
C 3 202 1938 6.18 801 806 183.1
D 10 157 931795 4971.39 788 770 187.3
D 13 122 688740 3673.55 788 770 187.3
D 1 52 146359 777.4 788 770 187.3

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