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70287 (1999 RH118)
Classification: Main-belt Asteroid          SPK-ID: 2070287
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1938387088481766 3.9814e-08  
a 2.434102484954346 7.7819e-09 au
q 1.962279202066658 9.8291e-08 au
i 2.997677606205437 4.6603e-06 deg
node 183.347365290676 7.2968e-05 deg
peri 132.8883158122825 7.3674e-05 deg
M 227.4035766003857 1.0467e-05 deg
tp 2459711.400144410826
(2022-May-11.90014441)
4.1142e-05 TDB
period 1387.096629549303
3.80
6.6519e-06
1.821e-08
d
yr
n .2595349107848179 1.2446e-09 deg/d
Q 2.905925767842035 9.2903e-09 au
  Orbit Determination Parameters
   # obs. used (total)      748  
   data-arc span      10884 days (29.80 yr)  
   first obs. used      1991-06-05  
   last obs. used      2021-03-23  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .55176  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-04 07:10:45  

Additional Information
 Earth MOID = .948354 au 
 Jupiter MOID = 2.3949 au 
 T_jup = 3.478 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456803.5 (2014-May-26.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .195086703347806 3.9897e-08  
q 1.95895093098736 9.862e-08 au
tp 2456936.705141778382
(2014-Oct-06.20514178)
3.8023e-05 TDB
node 183.3876648344929 7.3003e-05 deg
peri 132.782615404233 7.3695e-05 deg
i 2.996191754640166 4.6624e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      748  
   data-arc span      10884 days (29.80 yr)  
   first obs. used      1991-06-05  
   last obs. used      2021-03-23  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .55176  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-04 07:10:45  

Additional Information
 Jupiter MOID = 2.3949 au 
 T_jup = 3.478 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.59176275963046E-15 -3.927064979294215E-15 3.273663491993056E-13 -1.056666201959761E-14 9.793779329651784E-14 -7.916929546036267E-16
q -3.927064979294215E-15 9.725818193352822E-15 -7.89694388631875E-13 2.589790828931078E-14 -2.392206702255403E-13 1.940419208654679E-15
tp 3.273663491993056E-13 -7.89694388631875E-13 1.445753387644206E-9 -2.441580887063377E-12 3.941474282334868E-10 -8.714087172899322E-13
node -1.056666201959761E-14 2.589790828931078E-14 -2.441580887063377E-12 5.329476459753937E-9 -5.322502677595333E-9 -4.003738727890486E-11
peri 9.793779329651784E-14 -2.392206702255403E-13 3.941474282334868E-10 -5.322502677595333E-9 5.43098592251164E-9 3.977754584040074E-11
i -7.916929546036267E-16 1.940419208654679E-15 -8.714087172899322E-13 -4.003738727890486E-11 3.977754584040074E-11 2.173796358605026E-11

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 16.07   n/a E2021B10  

70287 (1999 RH118)          Discovered 1999-Sep-09 by LINEAR at Socorro
Reference: 20031109/Numbers.arcLast Updated: 2004-04-19
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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