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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 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2105555804575096 4.2631e-08  
a 2.401498226778481 8.9145e-09 au
q 1.895849373671459 1.0315e-07 au
i 1.59053533514766 3.5966e-06 deg
node 294.8040289506183 0.00016822 deg
peri 67.90686191171703 0.00016843 deg
M 17.95087103060067 9.4315e-06 deg
tp 2458932.719485943505
(2020-Mar-24.21948594)
3.5392e-05 TDB
period 1359.320392795551
3.72
7.5688e-06
2.072e-08
d
yr
n .2648382249747842 1.4746e-09 deg/d
Q 2.907147079885504 1.0791e-08 au
  Orbit Determination Parameters
   # obs. used (total)      918  
   data-arc span      9534 days (26.10 yr)  
   first obs. used      1992-03-26  
   last obs. used      2018-05-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53014  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 01:06:24  

Additional Information
 Earth MOID = .893992 au 
 Jupiter MOID = 2.55534 au 
 T_jup = 3.494 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456207.5 (2012-Oct-07.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2109403264422967 4.2754e-08  
q 1.894915515271885 1.0348e-07 au
tp 2456215.036799623053
(2012-Oct-14.53679962)
2.925e-05 TDB
node 294.9592629730506 0.00016857 deg
peri 68.04758011440939 0.00016878 deg
i 1.588577689492636 3.5936e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      918  
   data-arc span      9534 days (26.10 yr)  
   first obs. used      1992-03-26  
   last obs. used      2018-05-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53014  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 01:06:24  

Additional Information
 Jupiter MOID = 2.55534 au 
 T_jup = 3.494 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.827912728438708E-15 -4.414127157246371E-15 3.610385801503078E-14 2.672575796207397E-14 -2.373715469261381E-14 -1.011636793784173E-15
q -4.414127157246371E-15 1.070876309724307E-14 -5.320596789483736E-14 -6.52520814301375E-14 6.618275155806249E-14 2.470000944452969E-15
tp 3.610385801503078E-14 -5.320596789483736E-14 8.555451610504785E-10 -4.482784893559248E-12 2.653477692359127E-10 -1.225474878273673E-13
node 2.672575796207397E-14 -6.52520814301375E-14 -4.482784893559248E-12 2.841656766072478E-8 -2.840762904765223E-8 1.17652660272736E-10
peri -2.373715469261381E-14 6.618275155806249E-14 2.653477692359127E-10 -2.840762904765223E-8 2.848663960666989E-8 -1.176441113948008E-10
i -1.011636793784173E-15 2.470000944452969E-15 -1.225474878273673E-13 1.17652660272736E-10 -1.176441113948008E-10 1.291401930988331E-11

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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