ASTROSAT CZTI

Data Quality Report

Orbit 04602

Creation date: 2024-06-27T14:44:12.145545
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_167T02_9000000574_04602cztM0_level2.evt modeM0/AS1G05_167T02_9000000574_04602cztM0_level2_quad_clean.evt
Size (bytes)455,224,32076,515,840
Size434.1 MB 73.0 MB
Events in quadrant A2,997,943474,430
Events in quadrant B3,066,624487,846
Events in quadrant C4,196,495476,184
Events in quadrant D3,106,587447,841

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130563
B0130392
C0167992
D0137192

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01260
B01260
C01260
D01260

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0170
B0170
C0170
D0180

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6166460.746027%
B6166530.859552%
C6166390.632501%
D6166711.151476%

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 7466 6167 2 2 0.03% 0.03%
B 7466 6167 4 4 0.05% 0.06%
C 7466 6167 0 0 0.00% 0.00%
D 7466 6167 27 27 0.36% 0.44%

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 15 174 105207 684.31 751 737 152.7
A 0 226 7618 45.07 751 737 152.7
A 12 194 7298 42.98 751 737 152.7
B 14 167 29165 196.57 766 750 144.6
B 4 48 17874 118.46 766 750 144.6
B 4 80 13867 90.74 766 750 144.6
C 14 48 1317104 7680.5 732 737 171.4
C 12 4 13003 71.57 732 737 171.4
C 13 61 5970 30.53 732 737 171.4
D 13 235 200694 1162.16 714 696 172.1
D 2 136 71176 409.55 714 696 172.1
D 13 239 39855 227.55 714 696 172.1

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