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JPL Small-Body Database Browser
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1906 Naef (1972 RC)
Classification: Main-belt Asteroid          SPK-ID: 2001906
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 31 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .134458203462925 3.9066e-08  
a 2.374674638929342 6.7803e-09 au
q 2.055380153169933 9.3265e-08 au
i 6.470643146853506 4.2514e-06 deg
node 354.7948897148777 2.9982e-05 deg
peri 14.44421776380502 3.2445e-05 deg
M 256.6258573102166 1.3226e-05 deg
tp 2458984.307995815725
(2020-May-14.80799582)
4.9736e-05 TDB
period 1336.609667548099
3.66
5.7246e-06
1.567e-08
d
yr
n .2693381686071376 1.1535e-09 deg/d
Q 2.693969124688752 7.692e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2221  
   data-arc span      19669 days (53.85 yr)  
   first obs. used      1965-11-20  
   last obs. used      2019-09-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .44988  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-07 02:09:59  

Additional Information
 Earth MOID = 1.05409 au 
 Jupiter MOID = 2.76547 au 
 T_jup = 3.521 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 12.5   n/a MPO250216  
diameter diameter 7.923 km 0.090 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
rotation period rot_per 11.009 h n/a LCDB (Rev. 2019-January); Warner et al., 2009 Published Reference List:
[Pravec, P.; Wolf, M.; Sarounova, L. (2005) http://www.asu.cas.cz/~ppravec/neo.htm]
[Durkee, R.I.; Pravec, P. (2007) Minor Planet Bull. 34, 49.]
[Polishook, D. (2010) Minor Planet Bull. 37, 65-69.]
[Behrend, R. (2016) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
[Durech, J.; Hanus, J.; Oszkiewsicz, D.; Vanco, R. (2016) Astron. Astrophys. 587, A48.]
geometric albedo albedo 0.234   0.052 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  

1906 Naef (1972 RC)          Discovered 1972-Sep-05 by Wild, P. at Zimmerwald
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 1972 RC = 1943 VF = 1952 DG1 = 1965 WF 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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