ASTROSAT CZTI

Data Quality Report

Orbit 33513

Creation date: 2024-06-27T20:49:39.324171
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/AS1A11_060T01_9000004804_33513cztM0_level2.evt modeM0/AS1A11_060T01_9000004804_33513cztM0_level2_quad_clean.evt
Size (bytes)501,310,08049,276,800
Size478.1 MB 47.0 MB
Events in quadrant A2,412,018295,979
Events in quadrant B4,699,270258,130
Events in quadrant C3,426,384296,100
Events in quadrant D4,292,469277,229

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0300
B0300
C0300
D0310

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0104283
B0174032
C0131992
D0162992

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01060
B01060
C01060
D01060

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A519560.115496%
B519573414.128970%
C51952043.926853%
D51951452.791145%

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 7048 5196 0 0 0.00% 0.00%
B 7048 5196 581 581 8.24% 11.18%
C 7048 5196 163 163 2.31% 3.14%
D 7048 5196 127 127 1.80% 2.44%

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 13 6 9517 71.75 621 608 124.2
A 13 254 8736 65.46 621 608 124.2
A 3 137 6212 45.13 621 608 124.2
B 5 172 1643111 14556.02 586 570 112.8
B 5 255 723381 6405.47 586 570 112.8
B 15 222 14878 126.8 586 570 112.8
C 0 10 264675 1908.3 599 604 138.4
C 14 254 245126 1767.03 599 604 138.4
C 15 214 238903 1722.06 599 604 138.4
D 2 120 927345 6225.3 604 585 148.9
D 8 195 473612 3177.45 604 585 148.9
D 2 250 229621 1538.5 604 585 148.9

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