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91339 (1999 JR15)
Classification: Main-belt Asteroid          SPK-ID: 2091339
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 31 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1134799687582884 5.3171e-08  
a 2.571038957336705 1.1506e-08 au
q 2.279277536781793 1.4096e-07 au
i 18.00719341773098 4.8236e-06 deg
node 41.41425539711041 1.3776e-05 deg
peri 108.1978896774624 2.6211e-05 deg
M 202.9948368070719 1.9932e-05 deg
tp 2460053.208816213939
(2023-Apr-18.70881621)
8.2857e-05 TDB
period 1505.779612779427
4.12
1.0108e-05
2.767e-08
d
yr
n .2390788113643655 1.6049e-09 deg/d
Q 2.862800377891616 1.2812e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1810  
   data-arc span      8168 days (22.36 yr)  
   first obs. used      1999-03-29  
   last obs. used      2021-08-08  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .4766  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Aug-25 02:02:02  

Additional Information
 Earth MOID = 1.35117 au 
 Jupiter MOID = 2.23471 au 
 T_jup = 3.352 
[ 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 13.97   n/a MPO637241  
diameter diameter 6.406 km 0.136 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 101.919 h n/a LCDB (Rev. 2020-October); 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:
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]
geometric albedo albedo 0.133   0.021 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

91339 (1999 JR15)          Discovered 1999-May-10 by LINEAR at Socorro
Reference: 20041028/Numbers.arcLast Updated: 2004-10-29

Alternate Designations
 1999 JR15 = 2001 TR36 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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