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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 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 43 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1245909861754509 1.3934e-08  
a 2.607603448465417 1.0775e-08 au
q 2.282719563266604 3.4898e-08 au
i 14.73217990685364 4.821e-07 deg
node 100.8869534423356 3.4018e-06 deg
peri 133.5090062762448 7.9345e-06 deg
M 102.7449951198866 6.8806e-06 deg
tp 2458761.546089853479
(2019-Oct-05.04608985)
2.8546e-05 TDB
period 1538.015622740166
4.21
9.5327e-06
2.61e-08
d
yr
n .2340678434453191 1.4508e-09 deg/d
Q 2.93248733366423 1.2117e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2576  
   data-arc span      32750 days (89.66 yr)  
   first obs. used      1931-05-19  
   last obs. used      2021-01-16  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .37619  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-12 14:32:31  

Additional Information
 Earth MOID = 1.29184 au 
 Jupiter MOID = 2.17811 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 11.82   n/a E2021B10  
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. 2020-October); 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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