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18916 (2000 OG44)
Classification: Outer Main-belt Asteroid          SPK-ID: 2018916
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 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .5832631312887117 3.2532e-08  
a 3.855067120022015 1.3244e-08 au
q 1.606548600269819 1.2459e-07 au
i 7.395816852035108 9.2297e-06 deg
node 301.3751828538599 5.3298e-05 deg
peri 98.89346698246098 5.3457e-05 deg
M 205.3543219479882 5.0659e-06 deg
tp 2460188.131283976909
(2023-Aug-31.63128398)
4.3468e-05 TDB
period 2764.689370031348
7.57
1.4247e-05
3.901e-08
d
yr
n .1302135436632862 6.7102e-10 deg/d
Q 6.10358563977421 2.0969e-08 au
  Orbit Determination Parameters
   # obs. used (total)      625  
   data-arc span      23590 days (64.59 yr)  
   first obs. used      1954-09-06  
   last obs. used      2019-04-08  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .45877  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-12 22:49:10  

Additional Information
 Earth MOID = .635632 au 
 Jupiter MOID = .614748 au 
 T_jup = 2.736 
[ 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 14.4   n/a MPO467917  
diameter diameter 5.6 km 0.6 Fernandez et al. (2005) Astron.J. 130:308-318  
geometric albedo albedo 0.111   0.024 Fernandez et al. (2005) Astron.J. 130:308-318  

18916 (2000 OG44)          Discovered 2000-Jul-30 by LINEAR at Socorro
Reference: 20001111/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 2000 OG44 = 1977 SD 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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