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487636 (2015 OR12)
Classification: Main-belt Asteroid          SPK-ID: 2487636
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1266903132271316 4.2262e-08  
a 2.278155965317636 2.0664e-08 au
q 1.989535672491286 8.9985e-08 au
i 7.323719388114307 5.829e-06 deg
node 93.60965747640087 3.3056e-05 deg
peri 282.5467984527893 4.2029e-05 deg
M 91.20125920493163 2.3434e-05 deg
tp 2458682.320686587078
(2019-Jul-17.82068659)
8.1477e-05 TDB
period 1255.953632956615
3.44
1.7088e-05
4.678e-08
d
yr
n .2866347853563123 3.8999e-09 deg/d
Q 2.566776258143985 2.3282e-08 au
  Orbit Determination Parameters
   # obs. used (total)      153  
   data-arc span      5233 days (14.33 yr)  
   first obs. used      2005-10-03  
   last obs. used      2020-01-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55625  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-26 15:28:16  

Additional Information
 Earth MOID = 1.00657 au 
 Jupiter MOID = 2.90927 au 
 T_jup = 3.586 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457898.5 (2017-May-25.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1269753577735261 4.2306e-08  
q 1.988678041103668 8.9953e-08 au
tp 2457424.523589636148
(2016-Feb-06.02358964)
8.2051e-05 TDB
node 93.65964056381442 3.3097e-05 deg
peri 282.0276581373215 4.1989e-05 deg
i 7.319858595975965 5.8253e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      153  
   data-arc span      5233 days (14.33 yr)  
   first obs. used      2005-10-03  
   last obs. used      2020-01-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55625  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-26 15:28:16  

Additional Information
 Jupiter MOID = 2.90927 au 
 T_jup = 3.586 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.789815555202148E-15 -3.74338906454561E-15 4.324673758060447E-13 -1.505981150320268E-14 1.819518648130207E-13 -2.888048808882662E-15
q -3.74338906454561E-15 8.091478659637921E-15 -1.214735847776492E-12 3.225652779262204E-14 -4.480549892544867E-13 6.552519321936853E-15
tp 4.324673758060447E-13 -1.214735847776492E-12 6.732317810906885E-9 -7.047697792922785E-11 2.124527071470944E-9 -5.471335511274945E-12
node -1.505981150320268E-14 3.225652779262204E-14 -7.047697792922785E-11 1.095416642731509E-9 -1.107954667381717E-9 -1.381486392131094E-11
peri 1.819518648130207E-13 -4.480549892544867E-13 2.124527071470944E-9 -1.107954667381717E-9 1.763077546227544E-9 1.213153303875684E-11
i -2.888048808882662E-15 6.552519321936853E-15 -5.471335511274945E-12 -1.381486392131094E-11 1.213153303875684E-11 3.393365403070127E-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 17.6   n/a MPO450509  

487636 (2015 OR12)          Discovered 2009-Nov-16 by Mt. Lemmon Survey at Mount Lemmon
Reference: Last Updated: 2017-03-14

Alternate Designations
 2015 OR12 = 2009 YA6 = 2014 DJ73 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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