ASTROSAT CZTI

Data Quality Report

Orbit 33562

Creation date: 2024-06-27T20:50:10.482506
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/AS1A11_060T01_9000004808_33562cztM0_level2.evt modeM0/AS1A11_060T01_9000004808_33562cztM0_level2_quad_clean.evt
Size (bytes)1,852,096,320233,415,360
Size1.7 GB 222.6 MB
Events in quadrant A8,741,9481,550,602
Events in quadrant B13,901,7111,483,265
Events in quadrant C13,704,6371,526,958
Events in quadrant D18,640,2291,374,646

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0370104
B0519623
C0525933
D0667653

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0560
B0560
C0560
D0560

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A03360
B03360
C03360
D03360

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A164186033.672798%
B16418205012.486296%
C164187544.592520%
D16418262315.976367%

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 21938 16422 490 490 2.23% 2.98%
B 21938 16422 1725 1725 7.86% 10.50%
C 21938 16422 580 580 2.64% 3.53%
D 21938 16422 2526 2526 11.51% 15.38%

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 15 169 1433129 3800.77 1887 1850 376.6
A 13 254 25967 64.04 1887 1850 376.6
A 3 137 19556 47.02 1887 1850 376.6
B 5 172 5424120 15495.9 1809 1761 349.9
B 4 251 488599 1391.28 1809 1761 349.9
B 5 255 432274 1230.31 1809 1761 349.9
C 3 233 5130566 12146.88 1835 1849 422.2
C 15 214 693355 1637.77 1835 1849 422.2
C 0 10 311691 733.83 1835 1849 422.2
D 2 120 4748158 11123.66 1749 1701 426.7
D 8 195 3221856 7546.66 1749 1701 426.7
D 15 0 1303334 3050.47 1749 1701 426.7

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