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21233 (1995 UU3)
Classification: Main-belt Asteroid          SPK-ID: 2021233
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 27 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1998487488304941 3.8186e-08  
a 2.690909239262909 1.1418e-08 au
q 2.1531343945798 1.0424e-07 au
i 4.023299475221403 5.0566e-06 deg
node 28.91431517389484 5.2469e-05 deg
peri 49.22102140290328 5.3759e-05 deg
M 226.5849324384565 1.1387e-05 deg
tp 2459798.015782943351
(2022-Aug-06.51578294)
5.2613e-05 TDB
period 1612.304260614189
4.41
1.0261e-05
2.809e-08
d
yr
n .2232829179914603 1.4211e-09 deg/d
Q 3.228684083946018 1.3699e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1264  
   data-arc span      8747 days (23.95 yr)  
   first obs. used      1995-08-29  
   last obs. used      2019-08-10  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52142  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 01:58:12  

Additional Information
 Earth MOID = 1.17065 au 
 Jupiter MOID = 2.05048 au 
 T_jup = 3.339 
[ 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 14.5   n/a MPO439242  
diameter diameter 6.997 km 0.073 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.069   0.014 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

21233 (1995 UU3)          Discovered 1995-Oct-20 by Kobayashi, T. at Oizumi
Reference: 20010208/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1995 UU3 = 1997 EG56 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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