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86039 (1999 NC43)
Classification: Apollo [NEO, PHA]          SPK-ID: 2086039
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 273 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .5785531973917261 3.6969e-08  
a 1.759775821358069 2.1479e-09 au
q .7416518932187073 6.5109e-08 au
i 7.131923064054794 5.4264e-06 deg
node 311.658577456143 2.9139e-05 deg
peri 120.7793123615715 2.8869e-05 deg
M 346.2761330059207 4.1715e-06 deg
tp 2459233.005619403728
(2021-Jan-18.50561940)
9.9139e-06 TDB
period 852.6767995048724
2.33
1.5611e-06
4.274e-09
d
yr
n .4221998302393624 7.7299e-10 deg/d
Q 2.77789974949743 3.3906e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1398  
   data-arc span      7984 days (21.86 yr)  
   first obs. used      1999-06-11  
   last obs. used      2021-04-20  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .42205  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-21 06:23:12  

Additional Information
 Earth MOID = .0246427 au 
 Jupiter MOID = 2.57252 au 
 T_jup = 3.898 
[ 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 15.93   n/a E2021B10  
diameter diameter 2.22 km n/a Delbo et al. (2003). Icarus, v. 166, pp. 116-130  
rotation period rot_per 34.49 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:
[Pravec, P.; Wolf, M.; Sarounova, L. (2000) http://www.asu.cas.cz/~ppravec/neo.htm]
[Warner, B.D. (2014) Minor Planet Bull. 41, 157-168.]
[Warner, Brian D. (2014) Minor Planet Bull. 41, 213-224.]
geometric albedo albedo 0.14   n/a Delbo et al. (2003). Icarus, v. 166, pp. 116-130  
SMASSII spectral type spec_B Q   n/a Binzel et al. (2004) Icarus 170, 259-294  

86039 (1999 NC43)          Discovered 1999-Jul-14 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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