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2486 Metsahovi (1939 FY)
Classification: Main-belt Asteroid          SPK-ID: 2002486
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 34 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08064686414595414 3.2234e-08  
a 2.268252488979081 6.9809e-09 au
q 2.085325038651662 7.5093e-08 au
i 8.405385673581179 4.8603e-06 deg
node 359.9117244279603 2.3735e-05 deg
peri 101.6611152160235 3.9346e-05 deg
M 335.2694703848472 3.2248e-05 deg
tp 2459086.216896285528
(2020-Aug-24.71689629)
0.00011188 TDB
period 1247.772819385276
3.42
5.7603e-06
1.577e-08
d
yr
n .2885140583342379 1.3319e-09 deg/d
Q 2.451179939306499 7.5439e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2274  
   data-arc span      29545 days (80.89 yr)  
   first obs. used      1939-02-16  
   last obs. used      2020-01-07  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .43995  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jan-28 18:36:41  

Additional Information
 Earth MOID = 1.12092 au 
 Jupiter MOID = 2.63758 au 
 T_jup = 3.596 
[ 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 12.5   n/a MPO250224  
diameter diameter 7.883 km 0.062 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
rotation period rot_per 4.4518 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Published Reference List:
[Pravec, P.; Wolf, M.; Sarounova, L. (2007) http://www.asu.cas.cz/~ppravec/neo.htm]
[Pravec, P.; Wolf, M.; Sarounova, L. (2009) http://www.asu.cas.cz/~ppravec/neo.htm]
[Pravec, P.; Wolf, M.; Sarounova, L. (2014) http://www.asu.cas.cz/~ppravec/neo.htm]
[Pray, D.P.; Pravec, P.; Kucakova, H.; Hornoch, K.; et al. (2017) CBET 4356.]
geometric albedo albedo 0.268   0.031 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  

2486 Metsahovi (1939 FY)          Discovered 1939-Mar-22 by Vaisala, Y. at Turku
Reference: DISCOVERY.DBLast Updated: 2003-08-29

Alternate Designations
 1939 FY = 1961 TZ = 1970 FE = 1970 GN = 1975 WC = 1978 SW2 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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