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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 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05110682370620203 4.5206e-08  
a 2.953515131626844 1.6546e-08 AU
q 2.802570354481191 1.345e-07 AU
i 8.488572669010864 5.2904e-06 deg
node 272.8674871615593 3.6944e-05 deg
peri 277.9987851339633 6.2729e-05 deg
M 231.2946135743207 5.1726e-05 deg
tp 2457663.328920511496
(2016-Oct-01.82892051)
0.00026674 JED
period 1853.989316305176
5.08
1.5579e-05
4.265e-08
d
yr
n .1941758762221164 1.6317e-09 deg/d
Q 3.104459908772498 1.7391e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      1317  
   data-arc span      39580 days (108.36 yr)  
   first obs. used      1906-08-13  
   last obs. used      2014-12-24  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .5338  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Jan-07 23:46:59  

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 (024)
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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