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6455 (1992 HE)
Classification: Apollo [NEO]          SPK-ID: 2006455
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 214 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .5720875044797143 2.4051e-08  
a 2.241340592828213 5.4268e-09 AU
q .9590976463880373 5.4195e-08 AU
i 37.32942215882741 7.7711e-06 deg
node 26.98569638243946 6.974e-06 deg
peri 262.7314750551881 9.2536e-06 deg
M 252.175175095794 7.1032e-06 deg
tp 2457367.593312386616
(2015-Dec-11.09331239)
2.5173e-05 JED
period 1225.632340016225
3.36
4.4513e-06
1.219e-08
d
yr
n .2937259308898738 1.0668e-09 deg/d
Q 3.523583539268389 8.5314e-09 AU
  Orbit Determination Parameters
   # obs. used (total)      1111  
   data-arc span      9350 days (25.60 yr)  
   first obs. used      1989-09-29  
   last obs. used      2015-05-06  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .53143  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-May-08 06:15:38  

Additional Information
 Earth MOID = .291343 AU 
 T_jup = 3.178 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 13.8 mag n/a PDS3 (MPC 28115)  
rotation period rot_per 2.736 h n/a LCDB (Rev. 2015-May); 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:
[Behrend, R. (2002) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
[Gaftonyuk, N.M.; Krugly, Yu.N. (2004) Astronomical School Report 5, No. 1-2, 122-125 (in Russian).]
[Wolters, S.D.; Green, S.F.; McBride, N.; Davies, J.K. (2005) Icarus 175, 92-110.]
[Skiff, B.A. (2012) Posting on CALL web site. http://www.minorplanet.info/call.html]
[Linder, T.; Sampson, R.; Holmes, R. (2013) Minor Planet Bul. 40, 4-6.]
SMASSII spectral type spec_B S   n/a EAR-A-5-DDR-TAXONOMY-V4.0 based on a high-resolution spectrum by Xu et al. (1995) or Bus and Binzel (2002)

6455 (1992 HE)          Discovered 1992-Apr-25 by McNaught, R. H. at Siding Spring
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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