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2988 Korhonen (1943 EM)
Classification: Main-belt Asteroid          SPK-ID: 2002988
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 33 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1237860638502967 4.1785e-08  
a 2.607717029908916 1.1871e-08 au
q 2.284918003141105 1.1002e-07 au
i 14.73322585801093 4.048e-06 deg
node 100.8960465542982 1.9553e-05 deg
peri 133.9251512672191 2.6816e-05 deg
M 322.0072558185238 1.8665e-05 deg
tp 2458762.825699973153
(2019-Oct-06.32569997)
7.9805e-05 TDB
period 1538.116112676771
4.21
1.0503e-05
2.876e-08
d
yr
n .2340525510609825 1.5982e-09 deg/d
Q 2.930516056676728 1.334e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2066  
   data-arc span      32232 days (88.25 yr)  
   first obs. used      1931-05-19  
   last obs. used      2019-08-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .39405  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-23 19:28:23  

Additional Information
 Earth MOID = 1.29484 au 
 Jupiter MOID = 2.18068 au 
 T_jup = 3.354 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 11.8   n/a MPO384778  
diameter diameter 13.671 km 0.055 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
rotation period rot_per 29.494 h n/a LCDB (Rev. 2019-January); Warner et al., 2009 Published Reference List:
[Gross, J. (2003) Minor Planet Bull. 30, 44-46.]
geometric albedo albedo 0.216   0.045 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
SMASSII spectral type spec_B S   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)

2988 Korhonen (1943 EM)          Discovered 1943-Mar-01 by Oterma, L. at Turku
Reference: DISCOVERY.DBLast Updated: 2003-08-29

Alternate Designations
 1943 EM = 1931 KN = 1951 AS = 1953 TO3 = 1979 WM3 = 1979 YV6 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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