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JPL Small-Body Database Browser
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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 ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 28 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08650139566158535 3.3502e-08  
a 2.259727933902193 7.2458e-09 au
q 2.064258313804183 7.6171e-08 au
i 3.444378800506128 3.3185e-06 deg
node 54.03196540221989 7.5555e-05 deg
peri 45.65798288338642 7.9916e-05 deg
M 18.33996610938885 2.5315e-05 deg
tp 2458537.291033965635
(2019-Feb-22.79103397)
8.7233e-05 TDB
period 1240.745355615584
3.40
5.9676e-06
1.634e-08
d
yr
n .2901481745393191 1.3955e-09 deg/d
Q 2.455197554000204 7.8725e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2170  
   data-arc span      29664 days (81.22 yr)  
   first obs. used      1938-02-22  
   last obs. used      2019-05-12  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .46195  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-29 22:14:31  

Additional Information
 Earth MOID = 1.08293 au 
 Jupiter MOID = 2.64546 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 24. h n/a LCDB (Rev. 2019-January); Warner et al., 2009 lower-limit; Result based on fragmentary lightcurve(s), may be completely wrong.
Published Reference List:
[Brinsfield, J.W. (2009) Minor Planet Bull. 36, 127-128.]
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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