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49653 (1999 JO85)
Classification: Main-belt Asteroid          SPK-ID: 2049653
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 33 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08496826908190691 3.868e-08  
a 2.639759887613741 1.1907e-08 au
q 2.415464059171353 1.0465e-07 au
i 15.46398758224504 3.9356e-06 deg
node 109.8435435962201 1.5607e-05 deg
peri 186.2186714787761 2.9637e-05 deg
M 10.62011105811045 2.6116e-05 deg
tp 2459350.286206190091
(2021-May-15.78620619)
0.00011362 TDB
period 1566.552899544481
4.29
1.06e-05
2.902e-08
d
yr
n .229803921785648 1.5549e-09 deg/d
Q 2.86405571605613 1.2919e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1881  
   data-arc span      24207 days (66.28 yr)  
   first obs. used      1955-03-14  
   last obs. used      2021-06-22  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .48159  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 07:58:33  

Additional Information
 Earth MOID = 1.3994 au 
 Jupiter MOID = 2.32329 au 
 T_jup = 3.339 
[ 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 13.87   n/a MPCxxxxx  
diameter diameter 5.536 km 0.221 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 8. h n/a LCDB (Rev. 2020-October); Warner et al., 2009 lower-limit; Incomplete or inconclusive result.
Published Reference List:
[Kim, M.-J.; Choi, Y.-J.; Moon, H.-K.; Byun, Y.-I.; et al. (2014) Astron. J. 147, A56.]
geometric albedo albedo 0.209   0.038 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

49653 (1999 JO85)          Discovered 1999-May-15 by LINEAR at Socorro
Reference: 20021120/Numbers.arcLast Updated: 2004-04-19
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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