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18569 (1997 UC11)
Classification: Main-belt Asteroid          SPK-ID: 2018569
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 44 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2081859405637219 3.2081e-08  
a 2.362344948953915 9.5027e-09 au
q 1.870537943819987 7.5386e-08 au
i 23.19263716982898 4.0248e-06 deg
node 7.220538911087078 9.3462e-06 deg
peri 264.9151748349482 1.6994e-05 deg
M 254.0702223551515 1.8247e-05 deg
tp 2459786.737460674501
(2022-Jul-26.23746067)
6.8498e-05 TDB
period 1326.213355359122
3.63
8.0022e-06
2.191e-08
d
yr
n .2714495360382767 1.6379e-09 deg/d
Q 2.854151954087843 1.1481e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2116  
   data-arc span      16757 days (45.88 yr)  
   first obs. used      1975-06-14  
   last obs. used      2021-04-30  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .43578  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 18:01:38  

Additional Information
 Earth MOID = 1.0098 au 
 Jupiter MOID = 2.52565 au 
 T_jup = 3.414 
[ 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 13.79   n/a MPCxxxxx  
diameter diameter 4.606 km 0.147 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.251   0.056 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

18569 (1997 UC11)          Discovered 1997-Oct-26 by Urata, T. at Oohira
Reference: 20001111/Numbers.arcLast Updated: 2004-04-19
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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