ASTROSAT CZTI

Data Quality Report

Orbit 05229

Creation date: 2024-06-27T14:53:06.398657
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/AS1G05_258T01_9000000666_05229cztM0_level2.evt modeM0/AS1G05_258T01_9000000666_05229cztM0_level2_quad_clean.evt
Size (bytes)600,552,000109,238,400
Size572.7 MB 104.2 MB
Events in quadrant A3,210,450733,303
Events in quadrant B3,352,697747,842
Events in quadrant C3,183,774723,022
Events in quadrant D7,953,978603,887

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0148772
B0150091
C0146991
D0287801

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01440
B01440
C01440
D01440

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A71682142.985491%
B71681291.799665%
C7168670.934710%
D7168174924.400112%

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 7183 7169 3 3 0.04% 0.04%
B 7183 7169 9 9 0.13% 0.13%
C 7183 7169 0 0 0.00% 0.00%
D 7183 7169 1311 1311 18.25% 18.29%

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 50 62978 372.59 815 795 166.9
A 14 111 10081 55.64 815 795 166.9
A 12 194 8347 45.25 815 795 166.9
B 0 219 79559 500.07 824 803 157.5
B 4 80 28052 173.02 824 803 157.5
B 4 48 20307 123.84 824 803 157.5
C 1 16 98251 535.28 787 786 182.1
C 13 61 6530 31.55 787 786 182.1
C 8 128 5696 26.97 787 786 182.1
D 11 145 5143967 30150.37 698 673 170.6
D 10 172 44964 259.64 698 673 170.6
D 2 136 43276 249.74 698 673 170.6

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