ASTROSAT CZTI

Data Quality Report

Orbit 43883

Creation date: 2024-06-27T22:56:50.679600
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/AS1C07_001T10_9000005910_43883cztM0_level2.fits modeM0/AS1C07_001T10_9000005910_43883cztM0_level2_quad_clean.evt
Size (bytes)542,283,840109,742,400
Size517.2 MB 104.7 MB
Events in quadrant A5,118,914715,470
Events in quadrant B3,677,036782,557
Events in quadrant C3,496,069734,073
Events in quadrant D7,227,644593,523

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A010
B010
C010
D010

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0195523
B0157824
C0155143
D0264783

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01480
B01480
C01480
D01480

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A71295958.346192%
B71292703.787347%
C71292223.114041%
D7129124517.463880%

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 7359 7132 297 297 4.04% 4.16%
B 7359 7132 19 19 0.26% 0.27%
C 7359 7132 29 29 0.39% 0.41%
D 7359 7132 1084 1084 14.73% 15.20%

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 10 83 927754 5751.22 781 762 161.2
A 15 222 780539 4837.87 781 762 161.2
A 15 223 222410 1375.14 781 762 161.2
B 0 213 152124 957.11 795 768 158.1
B 10 128 102535 643.53 795 768 158.1
B 0 183 84274 528.05 795 768 158.1
C 3 233 233552 1264.54 783 785 184.1
C 14 254 116496 628.62 783 785 184.1
C 15 158 38258 203.58 783 785 184.1
D 1 52 2275135 12021.88 743 716 189.2
D 13 171 898571 4745.78 743 716 189.2
D 12 233 397059 2094.95 743 716 189.2

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
_ROLL_ROT
_Roll_DEC
_Roll_RA
Veto Counter