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115704 (2003 US166)
Classification: Main-belt Asteroid          SPK-ID: 2115704
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 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .01253165704866759 3.3735e-08  
a 2.848739040861422 1.8161e-08 au
q 2.813039620180197 9.9502e-08 au
i 2.778506680496013 5.2467e-06 deg
node 51.44389442639977 0.00012536 deg
peri 209.4840901300485 0.0003226 deg
M 337.6268298480571 0.00029725 deg
tp 2459309.644650072851
(2021-Apr-05.14465007)
0.00145 TDB
period 1756.213972333037
4.81
1.6794e-05
4.598e-08
d
yr
n .2049864114916243 1.9602e-09 deg/d
Q 2.884438461542648 1.8388e-08 au
  Orbit Determination Parameters
   # obs. used (total)      771  
   data-arc span      7942 days (21.74 yr)  
   first obs. used      1998-09-26  
   last obs. used      2020-06-24  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .5644  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 16:44:47  

Additional Information
 Earth MOID = 1.79618 au 
 Jupiter MOID = 2.08962 au 
 T_jup = 3.305 
[ 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 14.86   n/a E2021B55  
diameter diameter 3.079 km 0.470 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.224   0.058 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

115704 (2003 US166)          Discovered 2003-Oct-21 by Spacewatch at Kitt Peak
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

Alternate Designations
 2003 US166 = 1998 SY123 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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