ASTROSAT CZTI

Data Quality Report

Orbit 45759

Creation date: 2024-06-27T23:15:50.976780
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/AS1T05_183T01_9000006124_45759cztM0_level2.fits modeM0/AS1T05_183T01_9000006124_45759cztM0_level2_quad_clean.evt
Size (bytes)647,521,920106,081,920
Size617.5 MB 101.2 MB
Events in quadrant A6,623,310714,122
Events in quadrant B7,851,199646,763
Events in quadrant C3,683,616724,508
Events in quadrant D5,274,881643,870

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01400
B01400
C01400
D01400

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0242782
B0282142
C0158692
D0204022

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0110
C0110
D0110

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A69263194.605833%
B6926138820.040427%
C69261672.411204%
D69263955.703148%

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 7801 6927 147 147 1.88% 2.12%
B 7801 6927 857 857 10.99% 12.37%
C 7801 6927 127 127 1.63% 1.83%
D 7801 6927 301 301 3.86% 4.35%

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 10 83 3040598 18760.63 773 757 162.0
A 13 248 478872 2950.73 773 757 162.0
A 14 235 86900 531.64 773 757 162.0
B 3 112 2126747 14672.82 734 712 144.9
B 12 3 1055167 7277.31 734 712 144.9
B 5 172 841286 5801.22 734 712 144.9
C 14 254 558743 3083.24 768 772 181.0
C 12 2 111644 612.66 768 772 181.0
C 4 254 6780 33.2 768 772 181.0
D 1 52 1285837 6788.81 749 726 189.3
D 2 249 471242 2485.58 749 726 189.3
D 13 249 260957 1374.71 749 726 189.3

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