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243635 (1999 SD16)
Classification: Main-belt Asteroid          SPK-ID: 2243635
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2353928983782623 6.7012e-08  
a 3.136788263053025 4.0196e-08 au
q 2.398410582214058 2.0439e-07 au
i 15.31980302689212 7.8706e-06 deg
node 285.2792052603067 2.91e-05 deg
peri 54.88877068083745 3.6211e-05 deg
M 264.9347416509059 2.198e-05 deg
tp 2459536.352875183733
(2021-Nov-17.85287518)
0.00013092 TDB
period 2029.206446352463
5.56
3.9004e-05
1.068e-07
d
yr
n .1774092530836904 3.4101e-09 deg/d
Q 3.875165943891991 4.9658e-08 au
  Orbit Determination Parameters
   # obs. used (total)      273  
   data-arc span      7199 days (19.71 yr)  
   first obs. used      1999-07-22  
   last obs. used      2019-04-07  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54548  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 04:31:51  

Additional Information
 Earth MOID = 1.42466 au 
 Jupiter MOID = 1.67564 au 
 T_jup = 3.114 
[ 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 15.0   n/a MPO386055  
diameter diameter 2.736 km 0.802 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.236   0.130 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

243635 (1999 SD16)          Discovered 1999-Sep-29 by CSS at Catalina
Reference: 20100726/Numbers.arcLast Updated: 2010-07-28

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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