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5477 Holmes (1989 UH2)
Classification: Inner Main-belt Asteroid          SPK-ID: 2005477
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2457400.5 (2016-Jan-13.0) TDB
Reference: JPL 50 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07554307229024493 4.8566e-08  
a 1.917249642073126 7.3253e-09 au
q 1.77241471376355 9.4917e-08 au
i 22.5481330821735 8.5237e-06 deg
node 49.11859938152977 1.0835e-05 deg
peri 290.2704392019746 5.7711e-05 deg
M 358.2583583054411 5.673e-05 deg
tp 2457405.191078897347
(2016-Jan-17.69107890)
0.0001528 JED
period 969.653177413612
2.65
5.5572e-06
1.521e-08
d
yr
n .3712667667013065 2.1278e-09 deg/d
Q 2.062084570382703 7.8787e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1028  
   data-arc span      9388 days (25.70 yr)  
   first obs. used      1989-10-27  
   last obs. used      2015-07-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .45068  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Oct-28 16:07:59  

Additional Information
 Earth MOID = .840543 au 
 Jupiter MOID = 3.13612 au 
 T_jup = 3.832 
[ 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 14.0 mag n/a MPO267730  
rotation period rot_per 2.9940 h n/a LCDB (Rev. 2015-December); Warner et al., 2009 Published Reference List:
[Warner, B.D.; Pravec, P.; Kusnirak, P.; Cooney Jr., W.; et al. (2005) CBET 288.]
[Warner, B.D.; Pravec, P.; Kusnirak, P.; Harris, A.W.; et al. (2011) Minor Planet Bul. 38, 107-109.]
[Pravec, P.; Scheirich, P.; Vokrouhlicky, D.; Harris, A.W.; et al. (2012) Icarus 218, 125-143. See also supplemental on-line material.]
[Warner, B.D.; Stephens, R.D.; Coley, D. (2012) Minor Planet Bul. 39, 230-231.]
[Pravec, P.; Scheirich, P.; Kusnirak, P.; Hornoch, K.; et al. (2015) Icarus, in press.]

5477 Holmes           Discovered 1989 Oct. 27 by E. F. Helin at Palomar.
Amateur astronomer Robert E. Holmes Jr. (b.~1956) directs the Astronomical Research Observatory in Westfield, Illinois. The name was suggested by S. Foglia.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20110218/MPCPages.arcLast Updated: 2011-02-22
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]
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