ASTROSAT CZTI

Data Quality Report

Orbit 26132

Creation date: 2024-06-27T19:25:11.617517
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/AS1A09_138T04_9000003776_26132cztM0_level2.evt modeM0/AS1A09_138T04_9000003776_26132cztM0_level2_quad_clean.evt
Size (bytes)736,689,60088,450,560
Size702.6 MB 84.4 MB
Events in quadrant A8,497,574532,046
Events in quadrant B3,766,632565,080
Events in quadrant C4,567,593535,689
Events in quadrant D4,973,557524,841

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A020
B020
C020
D020

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0305570
B0158150
C0182990
D0196350

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A7477104714.002942%
B74771962.621372%
C74763845.136437%
D74763314.427501%

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 7652 7477 717 717 9.37% 9.59%
B 7652 7477 2 2 0.03% 0.03%
C 7651 7476 178 178 2.33% 2.38%
D 7651 7476 162 162 2.12% 2.17%

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 13 5017345 27386.91 902 882 183.2
A 13 254 10766 53.96 902 882 183.2
A 3 137 8269 40.33 902 882 183.2
B 0 229 105095 579.41 919 892 179.8
B 0 190 38878 211.22 919 892 179.8
B 12 111 22048 117.63 919 892 179.8
C 2 16 975239 4675.61 882 889 208.4
C 14 238 139471 665.01 882 889 208.4
C 3 233 9635 41.97 882 889 208.4
D 1 52 1510541 7040.62 896 874 214.4
D 2 234 33041 150.02 896 874 214.4
D 12 233 32355 146.82 896 874 214.4

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