ASTROSAT CZTI

Data Quality Report

Orbit 32946

Creation date: 2024-06-27T20:43:45.234535
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_005T01_9000004748_32946cztM0_level2.evt modeM0/AS1C07_005T01_9000004748_32946cztM0_level2_quad_clean.evt
Size (bytes)474,635,520101,257,920
Size452.6 MB 96.6 MB
Events in quadrant A2,344,511702,683
Events in quadrant B3,191,851713,441
Events in quadrant C2,551,268705,924
Events in quadrant D5,953,823600,018

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01000
B01000
C01000
D01000

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0350
B0350
C0350
D0360

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A099383
B0124572
C0105802
D0211812

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A490850.101874%
B49082565.215974%
C4908571.161369%
D490877015.688672%

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 7031 4909 0 0 0.00% 0.00%
B 7031 4909 139 139 1.98% 2.83%
C 7031 4909 43 43 0.61% 0.88%
D 7031 4909 693 693 9.86% 14.12%

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 0 159 26997 221.82 594 582 119.1
A 13 254 9164 72.07 594 582 119.1
A 13 6 8426 65.87 594 582 119.1
B 5 172 558585 5076.27 595 582 109.9
B 0 189 103819 939.17 595 582 109.9
B 0 219 60158 541.98 595 582 109.9
C 0 10 156200 1158.79 587 593 134.3
C 1 241 65154 480.78 587 593 134.3
C 14 67 16313 117.07 587 593 134.3
D 7 80 1481520 10809.63 538 526 137.0
D 8 195 1248604 9109.6 538 526 137.0
D 2 250 339673 2475.4 538 526 137.0

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