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2678 Aavasaksa (1938 DF1)
Classification: Main-belt Asteroid          SPK-ID: 2002678
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 33 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08623924521293834 2.9823e-08  
a 2.259696048987025 6.482e-09 au
q 2.064821567311725 6.6442e-08 au
i 3.444197266863671 3.2988e-06 deg
node 54.02951103445491 5.612e-05 deg
peri 45.65135172483104 5.989e-05 deg
M 134.4372663333699 2.1775e-05 deg
tp 2458537.169768202513
(2019-Feb-22.66976820)
7.439e-05 TDB
period 1240.719095205915
3.40
5.3385e-06
1.462e-08
d
yr
n .2901543156634121 1.2485e-09 deg/d
Q 2.454570530662325 7.041e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2568  
   data-arc span      30116 days (82.45 yr)  
   first obs. used      1938-02-22  
   last obs. used      2020-08-06  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .43748  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Aug-24 22:55:23  

Additional Information
 Earth MOID = 1.08338 au 
 Jupiter MOID = 2.64433 au 
 T_jup = 3.613 
[ 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 MPO431526  
diameter diameter 8.371 km 0.096 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 82.2 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Published Reference List:
[Rowe, B. (2019) Minor Planet Bull. 46, 353-356.]
geometric albedo albedo 0.276   0.037 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

2678 Aavasaksa (1938 DF1)          Discovered 1938-Feb-24 by Vaisala, Y. at Turku
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 1938 DF1 = 1952 KM = 1955 DH = 1977 SX1 = 1979 FP2 = A916 WA 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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