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181792 (1998 FD39)
Classification: Main-belt Asteroid          SPK-ID: 2181792
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2324203933497411 6.7977e-08  
a 2.868426074707354 2.0268e-08 au
q 2.201745358129217 1.8985e-07 au
i 6.271716362354337 5.7324e-06 deg
node 185.5872810748349 4.5209e-05 deg
peri 355.8228082688698 4.7543e-05 deg
M 235.2125911983491 1.9877e-05 deg
tp 2459815.580820979195
(2022-Aug-24.08082098)
0.00010262 TDB
period 1774.450625098488
4.86
1.8808e-05
5.149e-08
d
yr
n .2028796940912451 2.1503e-09 deg/d
Q 3.53510679128549 2.4979e-08 au
  Orbit Determination Parameters
   # obs. used (total)      278  
   data-arc span      8271 days (22.64 yr)  
   first obs. used      1998-03-20  
   last obs. used      2020-11-10  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .62062  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 21:32:03  

Additional Information
 Earth MOID = 1.20425 au 
 Jupiter MOID = 1.42623 au 
 T_jup = 3.250 
[ 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 16.3   n/a MPO449921  

181792 (1998 FD39)          Discovered 1998-Mar-20 by LINEAR at Socorro
Reference: 20080420/Numbers.arcLast Updated: 2008-04-23

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