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55637 (2002 UX25)
Classification: TransNeptunian Object          SPK-ID: 2055637
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

[ hide orbit diagram ]

For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 33 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1398105697629359 5.4873e-06  
a 42.71508834880051 0.00062163 au
q 36.74306750928056 0.00044116 au
i 19.41138716921181 3.474e-05 deg
node 204.5854032019802 3.297e-05 deg
peri 276.4409708618709 0.0042205 deg
M 302.9010276616948 0.0040381 deg
tp 2475569.708354753129
(2065-Oct-11.20835475)
0.79138 TDB
period 101969.5236056843
279.18
2.2259
0.006094
d
yr
n .003530466626402203 7.7068e-08 deg/d
Q 48.68710918832045 0.00070854 au
  Orbit Determination Parameters
   # obs. used (total)      492  
   data-arc span      10715 days (29.34 yr)  
   first obs. used      1991-10-12  
   last obs. used      2021-02-11  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      2  
   norm. resid. RMS      .41872  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 11:11:18  

Additional Information
 Earth MOID = 35.816 au 
 Jupiter MOID = 31.8125 au 
 T_jup = 5.473 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457348.5 (2015-Nov-22.0) TDB
Reference: JPL 33 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1437332836166383 5.3545e-06  
q 36.49134214511416 0.00044767 au
tp 2475862.458761476661
(2066-Jul-30.95876148)
0.75651 TDB
node 204.6628553407436 3.2838e-05 deg
peri 278.2034612045073 0.0041215 deg
i 19.47021918703638 3.4815e-05 deg
  Orbit Determination Parameters
   # obs. used (total)      492  
   data-arc span      10715 days (29.34 yr)  
   first obs. used      1991-10-12  
   last obs. used      2021-02-11  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      2  
   norm. resid. RMS      .41872  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 11:11:18  

Additional Information
 Jupiter MOID = 31.8125 au 
 T_jup = 5.473 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.867037113814164E-11 3.244843635682781E-10 -2.085772763042005E-6 -3.195963139260254E-12 -9.088794376612899E-9 -1.036781116057776E-13
q 3.244843635682781E-10 2.004056828417476E-7 -.000310855843477595 -1.699126301999435E-10 -1.767662465655267E-6 4.821496162539073E-10
tp -2.085772763042005E-6 -.000310855843477595 .5723112647580229 4.260218042066116E-7 .003096395244669758 -6.952052494926899E-7
node -3.195963139260254E-12 -1.699126301999435E-10 4.260218042066116E-7 1.078366709776077E-9 1.121914985909317E-9 1.082161626460974E-9
peri -9.088794376612899E-9 -1.767662465655267E-6 .003096395244669758 1.121914985909317E-9 1.698692080985418E-5 -5.066444757771273E-9
i -1.036781116057776E-13 4.821496162539073E-10 -6.952052494926899E-7 1.082161626460974E-9 -5.066444757771273E-9 1.212082982342896E-9

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 3.91   n/a MPCxxxxx  
rotation period rot_per 14.382 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Rousselot, P.; Petit, J.-M.; Poulet, F.; Sergeev, A. (2005) Icarus 176, 478-491.]

55637 (2002 UX25)          Discovered 2002-Oct-30 by Spacewatch at Kitt Peak
Reference: 20030216/Numbers.arcLast Updated: 2004-04-19
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]
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