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JPL Small-Body Database Browser
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85990 (1999 JV6)
Classification: Apollo [NEO, PHA]          SPK-ID: 2085990
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


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Orbital Elements at Epoch 2456179.5 (2012-Sep-09.0) TDB
Reference: JPL 245 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3113752294716263 9.8783e-09  
a 1.008079696058747 4.1521e-10 au
q .694188649372767 1.0108e-08 au
i 5.319130829068563 2.1406e-06 deg
node 124.5495975527936 8.5895e-06 deg
peri 235.342206523597 8.6151e-06 deg
M 326.4143165973988 1.3605e-06 deg
tp 2456213.989938287513
(2012-Oct-13.48993829)
1.3827e-06 TDB
period 369.692575097133
1.01
2.284e-07
6.253e-10
d
yr
n .9737820671822085 6.0162e-10 deg/d
Q 1.321970742744726 5.4449e-10 au

Additional Model Parameters
 Parameter Value Uncertainty (1-sigma) 
A2 [EST] -3.355907244910782E-14 2.672E-15
ALN [SET] 1. n/a
NK [SET] 0. n/a
NM [SET] 2. n/a
R0 [SET] 1. n/a
  Orbit Determination Parameters
   # obs. used (total)      1142  
   # delay obs. used      15  
   # Doppler obs. used      0  
   data-arc span      7195 days (19.70 yr)  
   first obs. used      1999-05-13  
   last obs. used      2019-01-23  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .38699  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jan-26 10:08:51  

Additional Information
 Earth MOID = .0314118 au 
 Jupiter MOID = 4.11917 au 
 T_jup = 5.995 
 Nongravitational accels. using nonstandard g(r) = (1 au/ r)^2 
[ 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 20.2   n/a MPO366219  
diameter diameter 0.451 km 0.026 urn:nasa:pds:neowise_diameters_albedos::2.0[neos] (http://adsabs.harvard.edu/abs/2011ApJ...743..156M)  
rotation period rot_per 6.538 h n/a LCDB (Rev. 2019-January); Warner et al., 2009 Published Reference List:
[Warner, B.D. (2014) Minor Planet Bull. 41, 157-168.]
[Warner, B.D. (2015) Minor Planet Bull. 42, 172-183.]
[Warner, B.D. (2016) Minor Planet Bull. 43, 240-250.]
geometric albedo albedo 0.095   0.023 urn:nasa:pds:neowise_diameters_albedos::2.0[neos] (http://adsabs.harvard.edu/abs/2011ApJ...743..156M)  
SMASSII spectral type spec_B Xk   n/a Binzel et al. (2001) Icarus 151, 139-149  

85990 (1999 JV6)          Discovered 1999-May-13 by LINEAR at Socorro
Reference: 20040830/Numbers.arcLast Updated: 2004-09-06

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