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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 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 29 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .083051373256501 2.7201e-08  
a 2.242197902449896 5.9727e-09 au
q 2.055980287538586 6.3189e-08 au
i 3.746365591028319 3.6062e-06 deg
node 32.80067782747096 4.4965e-05 deg
peri 56.09583359467232 5.111e-05 deg
M 305.022736535554 2.3977e-05 deg
tp 2459387.779377761178
(2021-Jun-22.27937776)
8.1785e-05 TDB
period 1226.33561122272
3.36
4.9e-06
1.342e-08
d
yr
n .2935574867968331 1.173e-09 deg/d
Q 2.428415517361206 6.4688e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1898  
   data-arc span      17335 days (47.46 yr)  
   first obs. used      1973-09-19  
   last obs. used      2021-03-06  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .48338  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 02:25:41  

Additional Information
 Earth MOID = 1.07474 au 
 Jupiter MOID = 2.69655 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 15.12   n/a E2021B10  
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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