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129882 Ustica (1999 TO)
Classification: Main-belt Asteroid          SPK-ID: 2129882
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 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1736298261292596 4.5534e-08  
a 2.392124714750397 1.0025e-08 au
q 1.97678051644878 1.0656e-07 au
i .7355785067528317 3.6806e-06 deg
node 283.4809024813289 0.00031559 deg
peri 116.7598798612982 0.00031575 deg
M 189.6542299456975 1.1202e-05 deg
tp 2459639.944722067338
(2022-Mar-01.44472207)
4.4309e-05 TDB
period 1351.369628203032
3.70
8.4947e-06
2.326e-08
d
yr
n .266396397023297 1.6746e-09 deg/d
Q 2.807468913052013 1.1765e-08 au
  Orbit Determination Parameters
   # obs. used (total)      702  
   data-arc span      9489 days (25.98 yr)  
   first obs. used      1994-05-05  
   last obs. used      2020-04-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51717  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 21:48:01  

Additional Information
 Earth MOID = .984955 au 
 Jupiter MOID = 2.59917 au 
 T_jup = 3.511 
[ 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 16.3   n/a MPO412841  
diameter diameter 3.217 km 0.088 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.052   0.007 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

129882 Ustica           Discovered 1999 Oct. 1 by F. Mallia and M. Di Sora at Campo Catino.
Ustica is a volcanic island 70 km north of Palermo, Sicily, famous for being the first Marine Protected Area in Italy (1986). Ustica is the emergent summit of a large sea-mount with unique features. Its origin is similar to intraplate volcanoes of the Hawaiian type.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: MPC batch dated 2015-06-02Last Updated: 2015-06-04

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