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27950 (1997 OF1)
Classification: Main-belt Asteroid          SPK-ID: 2027950
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

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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 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2105555940340858 4.2182e-08  
a 2.40149822012115 8.8523e-09 au
q 1.895849335811741 1.0217e-07 au
i 1.590538227496392 3.5868e-06 deg
node 294.8041283368968 0.00016697 deg
peri 67.90677559632155 0.00016718 deg
M 17.95086689428517 9.4362e-06 deg
tp 2458932.719501843624
(2020-Mar-24.21950184)
3.5412e-05 TDB
period 1359.320387143175
3.72
7.516e-06
2.058e-08
d
yr
n .2648382260760441 1.4644e-09 deg/d
Q 2.907147104430558 1.0716e-08 au
  Orbit Determination Parameters
   # obs. used (total)      962  
   data-arc span      10354 days (28.35 yr)  
   first obs. used      1992-03-26  
   last obs. used      2020-07-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52122  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Aug-25 02:31:24  

Additional Information
 Earth MOID = .893992 au 
 Jupiter MOID = 2.55534 au 
 T_jup = 3.494 
[ 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 15.6   n/a PDS3 (MPO 15209)  
rotation period rot_per 5.804 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Result based on fragmentary lightcurve(s), may be completely wrong.
Published Reference List:
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]

27950 (1997 OF1)          Discovered 1997-Jul-30 by Viscome, G. R. at Rand
Reference: 20010902/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1997 OF1 = 1994 WZ9 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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