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8956 (1998 FN119)
Classification: Main-belt Asteroid          SPK-ID: 2008956
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 31 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2425917335603033 2.9114e-08  
a 2.400260858584458 7.7986e-09 au
q 1.817977415903512 6.7998e-08 au
i 6.274702033510601 3.1265e-06 deg
node 230.9832126751904 3.0121e-05 deg
peri 233.8574397396302 3.1311e-05 deg
M 50.68986088881104 6.5582e-06 deg
tp 2458809.248570439337
(2019-Nov-21.74857044)
2.4797e-05 TDB
period 1358.269946584845
3.72
6.6196e-06
1.812e-08
d
yr
n .2650430431043278 1.2917e-09 deg/d
Q 2.982544301265404 9.6905e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1690  
   data-arc span      16649 days (45.58 yr)  
   first obs. used      1974-11-12  
   last obs. used      2020-06-12  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .46688  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jun-23 16:53:41  

Additional Information
 Earth MOID = .842955 au 
 Jupiter MOID = 2.20993 au 
 T_jup = 3.478 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457365.5 (2015-Dec-09.0) TDB
Reference: JPL 31 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2418621425144955 2.9148e-08  
q 1.820002597908436 6.8064e-08 au
tp 2457451.569020398482
(2016-Mar-04.06902040)
2.6327e-05 TDB
node 231.0085632590686 3.0144e-05 deg
peri 234.0517910135607 3.1341e-05 deg
i 6.270755101784915 3.1252e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1690  
   data-arc span      16649 days (45.58 yr)  
   first obs. used      1974-11-12  
   last obs. used      2020-06-12  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .46688  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jun-23 16:53:41  

Additional Information
 Jupiter MOID = 2.20993 au 
 T_jup = 3.478 
Orbit Covariance (6×6)
  e q tp node peri i
e 8.495996007779785E-16 -1.977282414176901E-15 -1.526666593587713E-14 2.6720444017476E-15 -2.148992905824569E-15 -2.400304634188822E-15
q -1.977282414176901E-15 4.632668967578542E-15 -1.676562178248391E-14 -5.408357290947621E-15 -1.23499231705353E-14 5.626068472507054E-15
tp -1.526666593587713E-14 -1.676562178248391E-14 6.931060642968248E-10 -2.179124769854228E-12 2.347536247649566E-10 -8.944917485707376E-13
node 2.6720444017476E-15 -5.408357290947621E-15 -2.179124769854228E-12 9.086734917936938E-10 -9.035498969200277E-10 1.665366567728998E-12
peri -2.148992905824569E-15 -1.23499231705353E-14 2.347536247649566E-10 -9.035498969200277E-10 9.822302932246208E-10 -1.959520076156078E-12
i -2.400304634188822E-15 5.626068472507054E-15 -8.944917485707376E-13 1.665366567728998E-12 -1.959520076156078E-12 9.766743784806686E-12

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 14.5   n/a MPO416812  

8956 (1998 FN119)          Discovered 1998-Mar-31 by the Lincoln Laboratory Near-Earth Asteroid Research Team at Socorro
Reference: 19980610/Numbers.arcLast Updated: 2004-04-19

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Alternate Designations
 1998 FN119 = 1974 VR = 1985 SF3 = 1989 YD8 = 1996 TF55 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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