ASTROSAT CZTI

Data Quality Report

Orbit 32342

Creation date: 2024-06-27T20:39:06.002882
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/AS1A10_005T01_9000004700_32342cztM0_level2.evt modeM0/AS1A10_005T01_9000004700_32342cztM0_level2_quad_clean.evt
Size (bytes)659,197,44076,536,000
Size628.7 MB 73.0 MB
Events in quadrant A3,320,161487,663
Events in quadrant B6,034,932462,851
Events in quadrant C3,554,360462,749
Events in quadrant D6,583,519418,987

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0143572
B0229691
C0147931
D0247461

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A020
B020
C020
D020

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01400
B01400
C01400
D01400

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A69671732.483135%
B69674927.061863%
C69672423.473518%
D69676509.329697%

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 7127 6968 0 0 0.00% 0.00%
B 7127 6968 151 151 2.12% 2.17%
C 7127 6968 1 1 0.01% 0.01%
D 7127 6968 365 365 5.12% 5.24%

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 12 189 24841 139.56 847 828 172.1
A 13 6 20244 112.84 847 828 172.1
A 13 254 13452 73.37 847 828 172.1
B 6 159 1912119 11956.07 823 802 159.9
B 5 172 488913 3053.34 823 802 159.9
B 10 245 205545 1280.75 823 802 159.9
C 14 238 140252 721.32 813 816 193.3
C 3 233 102445 525.74 813 816 193.3
C 14 67 56142 286.21 813 816 193.3
D 8 195 2059376 10972.61 790 767 187.6
D 13 249 956766 5095.58 790 767 187.6
D 14 52 202693 1076.29 790 767 187.6

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