ASTROSAT CZTI

Data Quality Report

Orbit 16733

Creation date: 2024-06-27T17:26:57.865964
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/AS1A05_202T01_9000002484_16733cztM0_level2.evt modeM0/AS1A05_202T01_9000002484_16733cztM0_level2_quad_clean.evt
Size (bytes)578,517,120121,556,160
Size551.7 MB 115.9 MB
Events in quadrant A5,389,790799,511
Events in quadrant B3,538,970858,628
Events in quadrant C3,303,456811,201
Events in quadrant D4,863,221773,926

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0203422
B0146011
C0138011
D0187191

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A627379812.721186%
B62731171.865136%
C62731131.801371%
D62733685.866412%

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 7624 6275 469 469 6.15% 7.47%
B 7624 6275 8 8 0.10% 0.13%
C 7624 6275 3 3 0.04% 0.05%
D 7624 6275 275 275 3.61% 4.38%

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 15 174 2309183 14905.0 786 773 154.9
A 0 23 44788 284.2 786 773 154.9
A 3 1 10230 61.06 786 773 154.9
B 15 35 72885 482.32 816 798 149.5
B 3 209 56118 370.14 816 798 149.5
B 0 189 53199 350.61 816 798 149.5
C 14 238 124583 704.06 770 779 175.8
C 0 207 83953 473.0 770 779 175.8
C 3 233 72801 409.58 770 779 175.8
D 2 16 1057605 5745.21 768 748 184.0
D 15 0 673779 3658.68 768 748 184.0
D 1 52 62427 335.29 768 748 184.0

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