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17758 (1998 DC18)
Classification: Main-belt Asteroid          SPK-ID: 2017758
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 31 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08341510552308233 3.3263e-08  
a 2.78490600107291 1.3126e-08 au
q 2.552602773121548 9.3516e-08 au
i 4.251140815436407 3.6647e-06 deg
node 47.79426136740644 5.0883e-05 deg
peri 266.0862636499758 5.5628e-05 deg
M 195.3158410510909 2.319e-05 deg
tp 2459977.039521548193
(2023-Feb-01.53952155)
0.00010974 TDB
period 1697.517414799303
4.65
1.2001e-05
3.286e-08
d
yr
n .2120744075209165 1.4993e-09 deg/d
Q 3.017209229024272 1.4221e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1764  
   data-arc span      10631 days (29.11 yr)  
   first obs. used      1991-12-08  
   last obs. used      2021-01-15  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51795  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 02:35:08  

Additional Information
 Earth MOID = 1.54118 au 
 Jupiter MOID = 2.1926 au 
 T_jup = 3.322 
[ 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 14.26   n/a E2021B10  

17758 (1998 DC18)          Discovered 1998-Feb-23 by Spacewatch at Kitt Peak
Reference: 20001013/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1998 DC18 = 2000 ML3 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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