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18247 (3151 T-2)
Classification: Main-belt Asteroid          SPK-ID: 2018247
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08293723759164093 3.4772e-08  
a 2.242632445728952 7.201e-09 au
q 2.056634705746807 7.7581e-08 au
i 3.746080557092299 4.0285e-06 deg
node 32.80599538769305 5.6613e-05 deg
peri 55.95182557430986 6.2245e-05 deg
M 246.4458864562268 2.4499e-05 deg
tp 2459387.433159047944
(2021-Jun-21.93315905)
8.3508e-05 TDB
period 1226.692128626089
3.36
5.9083e-06
1.618e-08
d
yr
n .2934721692583164 1.4135e-09 deg/d
Q 2.428630185711097 7.7982e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1450  
   data-arc span      16726 days (45.79 yr)  
   first obs. used      1973-09-19  
   last obs. used      2019-07-06  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51535  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-22 22:22:14  

Additional Information
 Earth MOID = 1.07569 au 
 Jupiter MOID = 2.69722 au 
 T_jup = 3.626 
[ 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 15.1   n/a MPO337412  
diameter diameter 2.528 km 0.663 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.276   0.137 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

18247 (3151 T-2)          Discovered 1973-Sep-30 by van Houten, C. J., van Houten-Groeneveld, I., Gehrels, T. at Palomar
Reference: 20001013/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 3151 T-2 = 1990 TF14 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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