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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 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 44 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07544881331534131 7.3687e-08  
a 1.917116522441105 8.233e-09 AU
q 1.77247235583569 1.3997e-07 AU
i 22.54855860770146 9.0059e-06 deg
node 49.12279839163395 1.2466e-05 deg
peri 290.3467483861851 6.4677e-05 deg
M 209.6554763861659 6.6428e-05 deg
tp 2457405.407950700826
(2016-Jan-17.90795070)
0.00017926 JED
period 969.5521908513622
2.65
6.2455e-06
1.71e-08
d
yr
n .371305437084191 2.3918e-09 deg/d
Q 2.06176068904652 8.8541e-09 AU
  Orbit Determination Parameters
   # obs. used (total)      942  
   data-arc span      8873 days (24.29 yr)  
   first obs. used      1989-10-27  
   last obs. used      2014-02-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .45309  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Jun-16 13:31:50  

Additional Information
 Earth MOID = .841625 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 Asteroid Lightcurve DataBase (Rev. 2014-Mar-01) 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.]

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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