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120545 (1994 WS)
Classification: Main-belt Asteroid          SPK-ID: 2120545
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .217921506084114 3.0766e-08  
a 2.218118672590476 6.4766e-09 au
q 1.734742910786264 7.0529e-08 au
i 1.983014528921948 3.0687e-06 deg
node 49.41037508625206 9.7811e-05 deg
peri 297.9604659884112 9.8229e-05 deg
M 15.4519335146534 7.2858e-06 deg
tp 2459148.708805968876
(2020-Oct-26.20880597)
2.4438e-05 TDB
period 1206.634097507822
3.30
5.2848e-06
1.447e-08
d
yr
n .298350594222012 1.3067e-09 deg/d
Q 2.701494434394688 7.888e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1239  
   data-arc span      10609 days (29.05 yr)  
   first obs. used      1991-12-27  
   last obs. used      2021-01-12  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .49233  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 09:25:18  

Additional Information
 Earth MOID = .727353 au 
 Jupiter MOID = 2.71898 au 
 T_jup = 3.620 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 16.12   n/a E2021B55  
diameter diameter 3.126 km 1.026 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
geometric albedo albedo 0.079   0.083 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  

120545 (1994 WS)          Discovered 1994-Nov-25 by Kobayashi, T. at Oizumi
Reference: 20060314/Numbers.arcLast Updated: 2006-03-23

[ hide close-approach data ]
Close-Approach Data   ...sorted by Date/Time (TDB)
Date/Time (TDB) Time Uncertainty
(days_HH:MM)
Body Nominal Distance (au) Minimum Distance (au) Maximum Distance (au) V-relative (km/s) V-infinity (km/s) JD (TDB) Time Uncertainty (minutes) Semi-major axis (km) Semi-minor axis (km) range-LOV angle (deg) N-sigma BP Orbit Ref. Reference Modified
2144-Feb-17 04:42 < 00:01 Vesta 0.0285290386279536 0.0285141132822819 0.0285439834607606 5.05939164279008 5.05939081844474 2504186.695637967 0.691282102440081 1391.02431746719 53.4288504091636 57.7763751800278 67414.3164016383 T 23 CATAB v2.0f-lin.ifort 2021-Feb-24 09:25:20 2021-Feb-24 09:25

Alternate Designations
 1994 WS = 2002 AL172 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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