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437505 (2013 YJ78)
Classification: Main-belt Asteroid          SPK-ID: 2437505
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 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .04003157017632242 5.968e-08  
a 3.16637171565691 6.8199e-08 au
q 3.039616884117268 2.1649e-07 au
i 10.19288093411397 6.5651e-06 deg
node 122.5185712491584 4.6368e-05 deg
peri 1.683351366503423 0.00012252 deg
M 41.85937933244514 0.00011133 deg
tp 2458761.206139132739
(2019-Oct-04.70613913)
0.00063612 TDB
period 2057.980583707374
5.63
6.6489e-05
1.82e-07
d
yr
n .1749287640758368 5.6516e-09 deg/d
Q 3.293126547196553 7.0929e-08 au
  Orbit Determination Parameters
   # obs. used (total)      110  
   data-arc span      5327 days (14.58 yr)  
   first obs. used      2005-07-03  
   last obs. used      2020-02-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .60767  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-26 10:11:35  

Additional Information
 Earth MOID = 2.05518 au 
 Jupiter MOID = 1.75634 au 
 T_jup = 3.178 
[ 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 16.0   n/a MPO336318  
rotation period rot_per 6.04 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.]

437505 (2013 YJ78)          Discovered 2013-Dec-24 by Mt. Lemmon Survey at Mount Lemmon
Reference: Last Updated: 2015-06-04

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