ASTROSAT CZTI

Data Quality Report

Orbit 10449

Creation date: 2024-06-27T15:59:21.934153
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/AS1A03_126T01_9000001512_10449cztM0_level2.evt modeM0/AS1A03_126T01_9000001512_10449cztM0_level2_quad_clean.evt
Size (bytes)678,219,840101,666,880
Size646.8 MB 97.0 MB
Events in quadrant A9,161,110618,135
Events in quadrant B3,876,722687,158
Events in quadrant C3,185,506679,955
Events in quadrant D3,870,247633,352

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0316983
B0158172
C0136722
D0158172

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0250
B0250
C0250
D0250

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6604206231.223501%
B66042043.089037%
C6604220.333131%
D66041101.665657%

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 7859 6604 1918 1918 24.41% 29.04%
B 7859 6604 112 112 1.43% 1.70%
C 7859 6605 1 1 0.01% 0.02%
D 7859 6604 79 79 1.01% 1.20%

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 13 251 6245309 43125.3 723 710 144.8
A 3 80 74364 508.66 723 710 144.8
A 15 223 20556 137.06 723 710 144.8
B 4 239 549004 3612.81 818 801 151.7
B 0 214 86935 567.65 818 801 151.7
B 4 81 25704 164.12 818 801 151.7
C 14 234 10459 51.27 813 822 188.0
C 13 61 6004 27.57 813 822 188.0
C 14 67 3141 12.34 813 822 188.0
D 8 195 413101 2185.32 793 774 188.7
D 2 33 220872 1166.51 793 774 188.7
D 9 85 113234 596.03 793 774 188.7

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