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90377 Sedna (2003 VB12)
Classification: TransNeptunian Object          SPK-ID: 2090377
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .8548953221489748 0.00035093  
a 524.3945960740773 1.2355 AU
q 76.09210893014748 0.010365 AU
i 11.92862352494027 4.9766e-05 deg
node 144.5445168637006 0.0024073 deg
peri 311.2878795486183 0.016179 deg
M 358.1629323910334 0.006388 deg
tp 2479382.988874750900
(2076-Mar-20.48887475)
4.7096 JED
period 4386172.809090717
12008.69
15501
42.44
d
yr
n 8.207610955361114E-5 2.9006e-07 deg/d
Q 972.6970832180072 2.2917 AU
  Orbit Determination Parameters
   # obs. used (total)      85  
   data-arc span      8057 days (22.06 yr)  
   first obs. used      1990-09-25  
   last obs. used      2012-10-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      2  
   fit RMS      .81037  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Jun-10 17:44:34  

Additional Information
 Earth MOID = 75.1208 AU 
 T_jup = 10.201 
[ 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 1.5 mag n/a MPO244863  
rotation period rot_per 10.273 h n/a Asteroid Lightcurve DataBase (Rev. 2014-Mar-01) Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Gaudi, B.S.; Stanek, K.Z.; Hartman, J.D.; Holman, M.J.; McLeod, B.A. (2005) Astrophys. J. 629, L49-L52.]

90377 Sedna           Discovered 2003 Nov. 14 by M. E. Brown, C. A. Trujillo and D. Rabinowitz at Palomar.
Sedna is the Inuit goddess of the sea and the mother of all sea creatures. She rewards the people of the land with food from the sea. Without her blessing, hunts fail and the people starve. She is thus one of the most important figures in Inuit legend.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20040928/MPCPages.arcLast Updated: 2004-09-28
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]
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