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136108 Haumea (2003 EL61)
Classification: TransNeptunian Object          SPK-ID: 2136108
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 97 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .194886232664738 1.0402e-05  
a 43.18222209460015 0.00054333 au
q 34.76660151249151 0.00087804 au
i 28.21354449734368 9.0157e-06 deg
node 122.1628019177601 0.00010632 deg
peri 238.7794044506821 0.0018106 deg
M 217.7721535582008 0.0025177 deg
tp 2499949.004035456441
0.98893 TDB
period 103646.8020964983
n .003473334369398383 6.5553e-08 deg/d
Q 51.59784267670879 0.00064921 au
  Orbit Determination Parameters
   # obs. used (total)      2793  
   data-arc span      23915 days (65.48 yr)  
   first obs. used      1955-03-22  
   last obs. used      2020-09-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      2  
   norm. resid. RMS      .27455  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 15:55:36  

Additional Information
 Earth MOID = 33.8496 au 
 Jupiter MOID = 30.2042 au 
 T_jup = 5.100 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 0.2   n/a MPO385591  
rotation period rot_per 3.9154 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Published Reference List:
[Rabinowitz, D.L.; Barkume, K.; Brown, M.E.; Roe, H.; et al. (2006) Astrophys. J. 639, 1238-1251.]
[Rabinowitz, D.L.; Schaefer, B.E.; Tourtellotte, S.W. (2007) Astron. J. 133, 26-43.]
[Lellouch, E.; Kiss, C.; Santos-Sanz, P.; Muller, T.G.; et al. (2010) Astron. Astrophys. 518, L147.]
[Thirouin, A.; Ortiz, J.L.; Duffard, R.; Santos-Sanz, P.; et al. (2010) Astron. Astrophys. 522, A93.]
[Behrend, R. (2011) Observatoire de Geneve web site,]
[Behrend, R. (2014) Observatoire de Geneve web site,]
[Lockwood, A.C.; Brown, M.E.; Stansberry, J. (2014) Earth, Moon, and Planets 111, 127-37.]
[Clark, M. (2016) Minor Planet Bull. 43, 2-5.]
[Behrend, R. (2017) Observatoire de Geneve web site,]
[Ortiz, J.L.; Santos-Sanz, P.; Sicardy, B.; Benedetti-Rossi, G.; et al. (2017) Nature 550, 219-223.]

136108 Haumea           Discovered 2003 Mar. 7 at the Sierra Nevada Observatory.
Haumea is the goddess of childbirth and fertility in Hawaiian mythology. Her many children sprang from different parts of her body. She takes many different forms and has experienced many different rebirths. As the goddess of the earth, she represents the element of stone. The satellites (136108) Haumea I and II were discovered by M. E. Brown, A. H. Bouchez and the Keck Observatory Adaptive Optics teams. Haumea I, discovered 2005 Jan. 26, is named Hi'iaka, who was born from the mouth of Haumea and carried by her sister Pele in egg form from their distant home to Hawaii. Hi'iaka danced the first Hula on the shores of Puna and is the patron goddess of the island of Hawaii and of hula dancers. Haumea II, discovered 2005 Nov. 7, is named Namaka, for a water spirit in Hawaiian mythology. Namaka was born from the body of Haumea and is the sister of Pele. When Pele sends her burning lava into the sea, Namaka cools the lava to become new land.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20080917/MPCPages.arcLast Updated: 2008-09-19
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