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78299 (2002 PF55)
Classification: Main-belt Asteroid          SPK-ID: 2078299
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 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .210597648248243 4.3749e-08  
a 2.767932060073933 1.2726e-08 au
q 2.185012077711448 1.2262e-07 au
i 9.701451475249947 4.661e-06 deg
node 298.5652229717634 2.8245e-05 deg
peri 74.36061477841157 3.0023e-05 deg
M 287.5324638999239 1.0566e-05 deg
tp 2459339.088778495866
(2021-May-04.58877850)
5.0453e-05 TDB
period 1682.021589504321
4.61
1.16e-05
3.176e-08
d
yr
n .2140281683935396 1.476e-09 deg/d
Q 3.350852042436418 1.5406e-08 au
  Orbit Determination Parameters
   # obs. used (total)      912  
   data-arc span      7918 days (21.68 yr)  
   first obs. used      1998-11-16  
   last obs. used      2020-07-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53495  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 21:27:22  

Additional Information
 Earth MOID = 1.20864 au 
 Jupiter MOID = 2.24795 au 
 T_jup = 3.285 
[ 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 14.4   n/a MPO436330  
rotation period rot_per 4.60 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Chang, C.-K.; Ip, W.-H.; Cheng, Y.-C.; Ngeow, C.-C.; et al. (2014) Astrophys. J. 788, A17.]

78299 (2002 PF55)          Discovered 2002-Aug-09 by LINEAR at Socorro
Reference: 20040415/Numbers.arcLast Updated: 2004-04-19

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