ASTROSAT CZTI

Data Quality Report

Orbit 03717

Creation date: 2024-06-27T14:32:46.960259
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_182T01_9000000484_03717cztM0_level2.evt modeM0/AS1G05_182T01_9000000484_03717cztM0_level2_quad_clean.evt
Size (bytes)493,943,04055,008,000
Size471.1 MB 52.5 MB
Events in quadrant A4,000,708280,059
Events in quadrant B3,870,807313,166
Events in quadrant C3,364,792305,522
Events in quadrant D3,264,601295,788

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01360
B01360
C01360
D01360

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0210
B0210
C0210
D0210

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0161363
B0158292
C0144032
D0144882

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A67533695.464238%
B6753941.391974%
C6753360.533096%
D6753300.444247%

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 7888 6753 243 243 3.08% 3.60%
B 7888 6754 0 0 0.00% 0.00%
C 7888 6754 3 3 0.04% 0.04%
D 7888 6754 11 11 0.14% 0.16%

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 789267 4940.28 782 765 159.6
A 8 15 71991 446.26 782 765 159.6
A 3 1 38891 238.87 782 765 159.6
B 0 173 373233 2338.13 830 813 159.3
B 15 204 213114 1332.87 830 813 159.3
B 0 228 33235 203.55 830 813 159.3
C 2 53 236688 1274.43 788 794 185.1
C 8 128 19343 100.21 788 794 185.1
C 1 16 10032 49.91 788 794 185.1
D 14 34 100016 521.99 781 757 190.2
D 9 35 46862 242.46 781 757 190.2
D 2 37 37645 193.99 781 757 190.2

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
Veto Counter