ASTROSAT CZTI

Data Quality Report

Orbit 38010

Creation date: 2024-06-27T21:47:16.190674
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_082T01_9000005356_38010cztM0_level2.fits modeM0/AS1A11_082T01_9000005356_38010cztM0_level2_quad_clean.evt
Size (bytes)428,063,04098,089,920
Size408.2 MB 93.5 MB
Events in quadrant A3,265,348675,064
Events in quadrant B4,204,626671,611
Events in quadrant C2,839,992667,649
Events in quadrant D5,094,395558,692

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0131683
B0161502
C0117062
D0188942

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01180
B01180
C01180
D01180

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0340
B0340
C0340
D0340

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5676250.440451%
B56763696.501057%
C567680.140944%
D567660910.729387%

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 9081 5678 8 8 0.09% 0.14%
B 9081 5678 254 254 2.80% 4.47%
C 9081 5678 6 6 0.07% 0.11%
D 9081 5678 496 496 5.46% 8.74%

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 382301 2868.99 653 641 133.0
A 12 16 283820 2128.7 653 641 133.0
A 12 194 43264 320.4 653 641 133.0
B 5 184 1244324 10180.97 645 628 122.2
B 5 255 201943 1647.98 645 628 122.2
B 5 172 94510 768.52 645 628 122.2
C 15 214 238348 1591.28 645 648 149.4
C 2 16 39322 258.9 645 648 149.4
C 14 254 22505 146.32 645 648 149.4
D 13 171 1486529 9945.1 614 597 149.4
D 1 52 261320 1744.98 614 597 149.4
D 5 222 236625 1579.7 614 597 149.4

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