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118308 (1998 VT7)
Classification: Main-belt Asteroid          SPK-ID: 2118308
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 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1053370896289423 3.0126e-08  
a 2.287792930195832 8.1634e-09 au
q 2.046803481255334 6.9443e-08 au
i 5.395106167686485 3.563e-06 deg
node 241.7000586745411 4.0983e-05 deg
peri 201.547045841698 4.6033e-05 deg
M 98.53289279733826 2.0095e-05 deg
tp 2458854.558846023622
(2020-Jan-06.05884602)
7.0282e-05 TDB
period 1263.931382666766
3.46
6.765e-06
1.852e-08
d
yr
n .2848255885857005 1.5245e-09 deg/d
Q 2.528782379136331 9.0233e-09 au
  Orbit Determination Parameters
   # obs. used (total)      793  
   data-arc span      8191 days (22.43 yr)  
   first obs. used      1998-10-11  
   last obs. used      2021-03-15  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .52961  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 16:56:39  

Additional Information
 Earth MOID = 1.06331 au 
 Jupiter MOID = 2.66267 au 
 T_jup = 3.587 
[ 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 16.27   n/a E2021B55  
rotation period rot_per 1.15 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 lower-limit; Incomplete or inconclusive result.
Published Reference List:
[Erasmus, N.; McNeill, A.; Mommert, M.; Trilling, D.E.; et al. (2018) Ap. J. Suppl. Series 237, A19.]
[Erasmus, N.; McNeill, A.; Mommert, N.; Trilling, D.E.; et al. (2019) Ap. J. Suppl. Series 242, A15.]

118308 (1998 VT7)          Discovered 1998-Nov-10 by LINEAR at Socorro
Reference: 20051116/Numbers.arcLast Updated: 2005-11-21

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