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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.


Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 251 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .311094904824695 9.9363e-09  
a 1.008205031783628 5.9722e-10 au
q .6945575833771216 9.8504e-09 au
i 5.359270614961518 2.125e-06 deg
node 124.317491543067 8.4036e-06 deg
peri 235.5281534864537 8.4315e-06 deg
M 29.43605511766683 1.5599e-06 deg
tp 2459170.265776132936
(2020-Nov-16.76577613)
1.5813e-06 TDB
period 369.7615237039894
1.01
3.2855e-07
8.995e-10
d
yr
n .9736004882114128 8.6508e-10 deg/d
Q 1.321852480190134 7.8301e-10 au

Additional Model Parameters
 Parameter Value Uncertainty (1-sigma) 
A2 [EST] -3.535068775454062E-14 2.65E-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)      1154  
   # delay obs. used      15  
   # Doppler obs. used      0  
   data-arc span      7944 days (21.75 yr)  
   first obs. used      1999-05-13  
   last obs. used      2021-02-10  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .39125  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 14:16:13  

Additional Information
 Earth MOID = .0314939 au 
 Jupiter MOID = 4.12474 au 
 T_jup = 5.994 
 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 20.27   n/a E2021B69  
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. 2020-October); Warner et al., 2009 Published Reference List:
[Pravec, P.; Wolf, M.; Sarounova, L. (2014) http://www.asu.cas.cz/~ppravec/neo.htm]
[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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