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49275 (1998 UO20)
Classification: Main-belt Asteroid          SPK-ID: 2049275
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 30 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09504393778137626 3.0557e-08  
a 2.610728431676793 1.206e-08 au
q 2.362594521052434 8.0529e-08 au
i 12.10042591124247 3.9909e-06 deg
node 227.0606404395172 1.5786e-05 deg
peri 262.1483438063004 2.7224e-05 deg
M 237.4308954852083 2.2554e-05 deg
tp 2459125.089371744990
(2020-Oct-02.58937175)
9.7075e-05 TDB
period 1540.781215427789
4.22
1.0676e-05
2.923e-08
d
yr
n .2336477083153224 1.6189e-09 deg/d
Q 2.858862342301153 1.3206e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1354  
   data-arc span      13382 days (36.64 yr)  
   first obs. used      1983-04-15  
   last obs. used      2019-12-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53927  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-14 04:18:33  

Additional Information
 Earth MOID = 1.41426 au 
 Jupiter MOID = 2.3026 au 
 T_jup = 3.372 
[ 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 14.1   n/a MPO417158  
diameter diameter 3.472 km 0.679 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.583   0.255 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

49275 (1998 UO20)          Discovered 1998-Oct-28 by Korlevic, K. at Visnjan
Reference: 20021120/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1998 UO20 = 2000 EU158 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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