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123980 (2001 FH39)
Classification: Main-belt Asteroid          SPK-ID: 2123980
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 26 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1053703510828063 3.7666e-08  
a 2.886010907338524 2.1747e-08 au
q 2.581910924803456 1.0861e-07 au
i 9.490754713134669 5.0733e-06 deg
node 328.1229750075103 2.5579e-05 deg
peri 279.7015113796721 3.5437e-05 deg
M 263.3610301056525 2.5762e-05 deg
tp 2459481.223297798740
(2021-Sep-23.72329780)
0.00013005 TDB
period 1790.792962681081
4.90
2.0241e-05
5.542e-08
d
yr
n .2010282637368794 2.2722e-09 deg/d
Q 3.190110889873593 2.4038e-08 au
  Orbit Determination Parameters
   # obs. used (total)      858  
   data-arc span      7434 days (20.35 yr)  
   first obs. used      1999-12-12  
   last obs. used      2020-04-19  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .50454  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 21:04:53  

Additional Information
 Earth MOID = 1.58967 au 
 Jupiter MOID = 1.9615 au 
 T_jup = 3.264 
[ 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 14.7   n/a MPO459584  
diameter diameter 3.867 km 0.537 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.205   0.038 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

123980 (2001 FH39)          Discovered 2001-Mar-18 by LINEAR at Socorro
Reference: 20060314/Numbers.arcLast Updated: 2006-03-23

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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