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JPL Small-Body Database Browser
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80078 (1999 JU115)
Classification: Main-belt Asteroid          SPK-ID: 2080078
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 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1653331031669143 3.4563e-08  
a 3.06063343172572 2.0441e-08 au
q 2.554609408802105 1.0666e-07 au
i 3.216091804882694 4.7503e-06 deg
node 78.83361468990438 7.4377e-05 deg
peri 57.88287684509176 7.5854e-05 deg
M 56.71211475177828 1.5391e-05 deg
tp 2458692.402095223228
(2019-Jul-27.90209522)
8.2589e-05 TDB
period 1955.759297728531
5.35
1.9593e-05
5.364e-08
d
yr
n .1840717313312089 1.8441e-09 deg/d
Q 3.566657454649336 2.3821e-08 au
  Orbit Determination Parameters
   # obs. used (total)      924  
   data-arc span      7568 days (20.72 yr)  
   first obs. used      1999-05-13  
   last obs. used      2020-01-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .50463  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 18:52:37  

Additional Information
 Earth MOID = 1.57025 au 
 Jupiter MOID = 1.47569 au 
 T_jup = 3.210 
[ 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 14.5   n/a MPO432349  
diameter diameter 6.116 km 0.706 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 5.235 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.; Lin, H.-W.; Cheng, Y.C.; et al. (2015) Astrophys. J. Supp. Ser. 219, A27.]
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]
geometric albedo albedo 0.082   0.030 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

80078 (1999 JU115)          Discovered 1999-May-13 by LINEAR at Socorro
Reference: 20040504/Numbers.arcLast Updated: 2004-07-16

[ show close-approach data ]
Alternate Designations
 1999 JU115 = 2001 UB129 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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