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18620 (1998 DS10)
Classification: Mars-crossing Asteroid          SPK-ID: 2018620
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 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3290126691541054 3.7865e-08  
a 2.284205831192387 8.5982e-09 au
q 1.532673173774408 8.6208e-08 au
i 3.010421537544753 3.9396e-06 deg
node 103.9206106924129 7.1247e-05 deg
peri 347.718695840526 7.1551e-05 deg
M 259.3063906219437 6.2118e-06 deg
tp 2459553.196125180503
(2021-Dec-04.69612518)
2.2849e-05 TDB
period 1260.959914429796
3.45
7.1198e-06
1.949e-08
d
yr
n .2854967837441458 1.612e-09 deg/d
Q 3.035738488610366 1.1427e-08 au
  Orbit Determination Parameters
   # obs. used (total)      794  
   data-arc span      9450 days (25.87 yr)  
   first obs. used      1993-08-15  
   last obs. used      2019-06-30  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .52819  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 02:33:26  

Additional Information
 Earth MOID = .54923 au 
 Jupiter MOID = 2.18411 au 
 T_jup = 3.528 
[ 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 16.2   n/a MPO337415  

18620 (1998 DS10)          Discovered 1998-Feb-24 by JPL/GEODSS NEAT at Haleakala
Reference: 20001111/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1998 DS10 = 2000 QM145 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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