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181907 (1999 SC14)
Classification: Main-belt Asteroid          SPK-ID: 2181907
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 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1895075961346039 3.6376e-08  
a 2.223938148533499 9.7598e-09 au
q 1.802484976052874 7.8012e-08 au
i 2.580285033753214 3.7844e-06 deg
node 306.1105667234382 0.00011113 deg
peri 5.164611754897513 0.00011194 deg
M 181.5813178116739 1.4328e-05 deg
tp 2459800.871835246049
(2022-Aug-09.37183525)
5.0125e-05 TDB
period 1211.385814745801
3.32
7.9743e-06
2.183e-08
d
yr
n .2971803001305104 1.9563e-09 deg/d
Q 2.645391321014124 1.1609e-08 au
  Orbit Determination Parameters
   # obs. used (total)      607  
   data-arc span      7864 days (21.53 yr)  
   first obs. used      1999-09-07  
   last obs. used      2021-03-19  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .52564  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-04 10:09:54  

Additional Information
 Earth MOID = .786173 au 
 Jupiter MOID = 2.61709 au 
 T_jup = 3.622 
[ 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 16.75   n/a MPCxxxxx  
diameter diameter 1.728 km 0.303 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.135   0.054 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

181907 (1999 SC14)          Discovered 1999-Sep-29 by CSS at Catalina
Reference: 20080420/Numbers.arcLast Updated: 2008-04-23
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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