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18622 (1998 DN13)
Classification: Main-belt Asteroid          SPK-ID: 2018622
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 34 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1292782000373923 2.6143e-08  
a 2.807363007715582 9.4547e-09 au
q 2.444432171226552 7.4488e-08 au
i 3.569051022844455 3.0601e-06 deg
node 68.78666294320546 6.4996e-05 deg
peri 357.9784309149272 6.7615e-05 deg
M 46.12915923550705 1.7528e-05 deg
tp 2458980.349678184608
(2020-May-10.84967818)
8.3601e-05 TDB
period 1718.091488486027
4.70
8.6793e-06
2.376e-08
d
yr
n .2095348253644106 1.0585e-09 deg/d
Q 3.170293844204612 1.0677e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2105  
   data-arc span      13962 days (38.23 yr)  
   first obs. used      1982-12-23  
   last obs. used      2021-03-15  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .46594  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 02:33:35  

Additional Information
 Earth MOID = 1.45769 au 
 Jupiter MOID = 2.11385 au 
 T_jup = 3.307 
[ 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 13.68   n/a E2021B10  
diameter diameter 7.517 km 1.899 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
geometric albedo albedo 0.124   0.090 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  

18622 (1998 DN13)          Discovered 1998-Feb-25 by JPL/GEODSS NEAT at Haleakala
Reference: 20001111/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1998 DN13 = 1982 YC4 = 2000 QM203 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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