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JPL Small-Body Database Browser
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215012 (2008 EG103)
Classification: Main-belt Asteroid          SPK-ID: 2215012
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08563087238310794 4.8053e-08  
a 3.18119828918522 4.4671e-08 au
q 2.908789504458639 1.5967e-07 au
i 6.616339872767802 5.3828e-06 deg
node 93.70616736624628 4.9023e-05 deg
peri 281.3170248932112 5.9306e-05 deg
M 132.3405612446409 3.22e-05 deg
tp 2457838.640287381285
(2017-Mar-26.14028738)
0.00018698 TDB
period 2072.45226983533
5.67
4.3653e-05
1.195e-07
d
yr
n .1737072574552486 3.6589e-09 deg/d
Q 3.453607073911801 4.8497e-08 au
  Orbit Determination Parameters
   # obs. used (total)      294  
   data-arc span      6223 days (17.04 yr)  
   first obs. used      2002-02-12  
   last obs. used      2019-02-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53421  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-14 11:06:14  

Additional Information
 Earth MOID = 1.91878 au 
 Jupiter MOID = 2.01728 au 
 T_jup = 3.183 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457103.5 (2015-Mar-22.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08553570991832177 4.7994e-08  
q 2.909183930661321 1.5958e-07 au
tp 2457842.517061603394
(2017-Mar-30.01706160)
0.00018742 TDB
node 93.71896824242823 4.9022e-05 deg
peri 282.1578292866749 5.9349e-05 deg
i 6.61643734351129 5.3826e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      294  
   data-arc span      6223 days (17.04 yr)  
   first obs. used      2002-02-12  
   last obs. used      2019-02-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53421  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-14 11:06:14  

Additional Information
 Jupiter MOID = 2.01728 au 
 T_jup = 3.183 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.303470609630976E-15 -7.40563069940837E-15 -8.466035871593857E-13 3.445514420193127E-15 -1.473499163935988E-13 -1.054621927626261E-15
q -7.40563069940837E-15 2.546450038231028E-14 1.604294735237301E-12 -8.852494590997679E-15 1.686180175396813E-13 4.884564030514435E-15
tp -8.466035871593857E-13 1.604294735237301E-12 3.5126363355302E-8 -9.378587557180567E-12 6.299383278305859E-9 3.705860686470011E-12
node 3.445514420193127E-15 -8.852494590997679E-15 -9.378587557180567E-12 2.403168260938099E-9 -2.388560171738696E-9 2.656189373236373E-11
peri -1.473499163935988E-13 1.686180175396813E-13 6.299383278305859E-9 -2.388560171738696E-9 3.522333227524135E-9 -2.582261744726332E-11
i -1.054621927626261E-15 4.884564030514435E-15 3.705860686470011E-12 2.656189373236373E-11 -2.582261744726332E-11 2.89722866754664E-11

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 15.2   n/a MPO437029  
diameter diameter 4.887 km 0.311 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.074   0.011 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

215012 (2008 EG103)          Discovered 2008-Mar-05 by Mt. Lemmon Survey at Mount Lemmon
Reference: 20090509/Numbers.arcLast Updated: 2009-05-11

[ show close-approach data ]
Alternate Designations
 2008 EG103 = 2002 CE302 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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