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18618 (1998 DD10)
Classification: Main-belt Asteroid          SPK-ID: 2018618
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 42 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .0457532760168619 3.1351e-08  
a 2.232438584766604 6.1035e-09 au
q 2.130297206007085 7.0102e-08 au
i 5.63872796003692 3.4878e-06 deg
node 265.2773509269952 3.4031e-05 deg
peri 184.5730063160319 5.1638e-05 deg
M 8.353167063135208 3.8741e-05 deg
tp 2459172.230614145376
(2020-Nov-18.73061415)
0.00013109 TDB
period 1218.337767070225
3.34
4.9964e-06
1.368e-08
d
yr
n .2954845607927785 1.2118e-09 deg/d
Q 2.334579963526123 6.3827e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2131  
   data-arc span      12612 days (34.53 yr)  
   first obs. used      1986-09-08  
   last obs. used      2021-03-20  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .45961  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-04 02:45:45  

Additional Information
 Earth MOID = 1.14648 au 
 Jupiter MOID = 2.75327 au 
 T_jup = 3.633 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.11   n/a E2021B10  

18618 (1998 DD10)          Discovered 1998-Feb-22 by JPL/GEODSS NEAT at Haleakala
Reference: 20001111/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1998 DD10 = 1986 RA10 = 1996 TK56 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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