ASTROSAT CZTI

Data Quality Report

Orbit 10387

Creation date: 2024-06-27T15:58:44.620204
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/AS1A03_073T01_9000001498_10387cztM0_level2.evt modeM0/AS1A03_073T01_9000001498_10387cztM0_level2_quad_clean.evt
Size (bytes)450,757,44085,910,400
Size429.9 MB 81.9 MB
Events in quadrant A2,884,650544,492
Events in quadrant B3,215,999545,989
Events in quadrant C2,808,906549,397
Events in quadrant D4,307,987516,308

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0129782
B0137861
C0128851
D0171661

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6388250.391359%
B6388781.221039%
C6388150.234815%
D6388951.487163%

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 7348 6388 3 3 0.04% 0.05%
B 7348 6389 25 25 0.34% 0.39%
C 7348 6388 0 0 0.00% 0.00%
D 7348 6389 90 90 1.22% 1.41%

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 5 16 23252 149.93 736 721 150.3
A 8 15 15624 99.17 736 721 150.3
A 0 226 6783 40.34 736 721 150.3
B 4 239 198304 1392.44 742 724 141.9
B 0 214 42275 292.83 742 724 141.9
B 0 219 27416 188.11 742 724 141.9
C 14 234 12339 69.32 717 720 167.6
C 13 61 5262 27.1 717 720 167.6
C 14 67 1907 7.08 717 720 167.6
D 1 20 814380 4801.53 705 685 169.5
D 8 195 560115 3301.14 705 685 169.5
D 12 233 121994 715.83 705 685 169.5

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