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22518 (1998 DG34)
Classification: Main-belt Asteroid          SPK-ID: 2022518
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 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1968019381035971 3.3527e-08  
a 2.392645219674656 9.1242e-09 au
q 1.921768003248377 8.0674e-08 au
i 3.728542555464465 4.0028e-06 deg
node 16.50219438525259 6.0778e-05 deg
peri 15.26678648730562 6.1733e-05 deg
M 175.0297282028228 1.1958e-05 deg
tp 2458543.258158069030
(2019-Feb-28.75815807)
4.3263e-05 TDB
period 1351.810721096311
3.70
7.7326e-06
2.117e-08
d
yr
n .2663094724593115 1.5233e-09 deg/d
Q 2.863522436100935 1.092e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1976  
   data-arc span      12634 days (34.59 yr)  
   first obs. used      1985-11-07  
   last obs. used      2020-06-10  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .45187  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 04:07:13  

Additional Information
 Earth MOID = .926593 au 
 Jupiter MOID = 2.58157 au 
 T_jup = 3.502 
[ 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 14.65   n/a E2021B10  
rotation period rot_per 13.0037 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:
[Pal, A.; Szakats, R.; Kiss, C.; Bodi, A.; et al. (2019) Ap. J. Supl. Ser. 247, id.26.]

22518 (1998 DG34)          Discovered 1998-Feb-27 by Elst, E. W. at La Silla
Reference: 20010309/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1998 DG34 = 1985 VK1 = 1992 OY8 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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