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677 Aaltje (1909 FR)
Classification: Main-belt Asteroid          SPK-ID: 2000677
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .0511068271790513 4.4117e-08  
a 2.953515132676314 1.6193e-08 AU
q 2.802570345219912 1.3198e-07 AU
i 8.488571614872027 5.2474e-06 deg
node 272.867471092248 3.5401e-05 deg
peri 277.998799063774 6.1453e-05 deg
M 231.2946150326146 5.1382e-05 deg
tp 2457663.328913354609
(2016-Oct-01.82891335)
0.00026511 JED
period 1853.98931729334
5.08
1.5247e-05
4.174e-08
d
yr
n .1941758761186219 1.5969e-09 deg/d
Q 3.104459920132715 1.7021e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      1492  
   data-arc span      39673 days (108.62 yr)  
   first obs. used      1906-08-13  
   last obs. used      2015-03-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .51508  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Apr-07 16:01:32  

Additional Information
 Earth MOID = 1.81893 AU 
 T_jup = 3.250 
[ 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 9.5 mag n/a MPO267709  
diameter diameter 28.87 km 1.7 IRAS-A-FPA-3-RDR-IMPS-V6.0 IRAS observations used: 5
rotation period rot_per 16.608 h n/a LCDB (Rev. 2015-Feb); Warner et al., 2009 Published Reference List:
[Behrend, R. (2008) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
[Oey, J. (2009) Minor Planet Bul. 36, 162-165.]
geometric albedo albedo 0.2794   0.037 IRAS-A-FPA-3-RDR-IMPS-V6.0 IRAS observations used: 5
SMASSII spectral type spec_B Sl   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)

677 Aaltje (1909 FR)          Discovered 1909-Jan-18 by Kopff, A. at Heidelberg
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 1909 FR = A906 PA 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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