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18875 (1999 VT39)
Classification: Main-belt Asteroid          SPK-ID: 2018875
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 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .124005169880842 3.7118e-08  
a 3.099055355114447 1.5752e-08 au
q 2.714756469333347 1.1014e-07 au
i 2.950823912801802 3.4716e-06 deg
node 31.73835384756373 7.2948e-05 deg
peri 158.3907616293457 7.4322e-05 deg
M 139.9033266772443 1.4933e-05 deg
tp 2458426.095321582191
(2018-Nov-03.59532158)
8.1417e-05 TDB
period 1992.702324181091
5.46
1.5193e-05
4.16e-08
d
yr
n .180659196123507 1.3774e-09 deg/d
Q 3.483354240895547 1.7706e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1873  
   data-arc span      15349 days (42.02 yr)  
   first obs. used      1978-11-29  
   last obs. used      2020-12-07  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .50985  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 02:40:47  

Additional Information
 Earth MOID = 1.71464 au 
 Jupiter MOID = 1.47057 au 
 T_jup = 3.209 
[ 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 13.65   n/a MPCxxxxx  

18875 (1999 VT39)          Discovered 1999-Nov-11 by Spacewatch at Kitt Peak
Reference: 20001111/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1999 VT39 = 1978 WT5 = 1996 CJ9 = 1999 VB175 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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