ASTROSAT CZTI

Data Quality Report

Orbit 06718

Creation date: 2024-06-27T15:10:44.750672
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/AS1C02_003T01_9000000924_06718cztM0_level2.evt modeM0/AS1C02_003T01_9000000924_06718cztM0_level2_quad_clean.evt
Size (bytes)473,094,72089,153,280
Size451.2 MB 85.0 MB
Events in quadrant A3,177,765566,729
Events in quadrant B3,122,184578,769
Events in quadrant C3,053,181561,039
Events in quadrant D4,504,867511,860

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140
B0140
C0140
D0150

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01420
B01420
C01420
D01420

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0144273
B0141662
C0140872
D0181372

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6902290.420168%
B6902240.347725%
C690290.130397%
D69024516.534338%

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 7847 6903 19 19 0.24% 0.28%
B 7847 6903 5 5 0.06% 0.07%
C 7847 6903 0 0 0.00% 0.00%
D 7847 6903 398 398 5.07% 5.77%

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 133377 828.61 783 767 160.0
A 8 15 32654 199.25 783 767 160.0
A 0 226 7466 41.86 783 767 160.0
B 10 252 29632 188.83 796 777 152.8
B 12 111 15774 98.14 796 777 152.8
B 11 111 12316 75.51 796 777 152.8
C 10 22 15977 84.64 769 775 179.6
C 8 128 14365 75.66 769 775 179.6
C 9 247 10324 53.16 769 775 179.6
D 2 33 1064673 5988.17 726 703 177.7
D 8 195 517657 2909.49 726 703 177.7
D 2 152 108258 605.33 726 703 177.7

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