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2559 Svoboda (1981 UH)
Classification: Main-belt Asteroid          SPK-ID: 2002559
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 35 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1546901489000097 2.8266e-08  
a 2.787155617369947 1.0525e-08 au
q 2.356010099911491 7.7898e-08 au
i 8.887419448227295 5.1296e-06 deg
node 350.2140643365751 2.058e-05 deg
peri 87.81645416991708 2.7888e-05 deg
M 68.99307634056908 1.7096e-05 deg
tp 2458674.780872476517
(2019-Jul-10.28087248)
8.0724e-05 TDB
period 1699.574683836845
4.65
9.6273e-06
2.636e-08
d
yr
n .2118176997007795 1.1999e-09 deg/d
Q 3.218301134828402 1.2153e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2380  
   data-arc span      32709 days (89.55 yr)  
   first obs. used      1930-12-13  
   last obs. used      2020-07-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .40447  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 04:08:12  

Additional Information
 Earth MOID = 1.39157 au 
 Jupiter MOID = 2.08978 au 
 T_jup = 3.296 
[ 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 12.4   n/a MPO384773  
diameter diameter 20.884 km 0.085 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
geometric albedo albedo 0.034   0.004 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
SMASSII spectral type spec_B Xk   n/a EAR-A-5-DDR-TAXONOMY-V4.0 based on a high-resolution spectrum by Xu et al. (1995) or Bus and Binzel (2002)

2559 Svoboda (1981 UH)          Discovered 1981-Oct-23 by Mrkos, A. at Klet
Reference: DISCOVERY.DBLast Updated: 2003-08-29

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Alternate Designations
 1981 UH = 1930 XJ = 1948 RF = 1976 SC7 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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