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134404 (1997 UG8)
Classification: Main-belt Asteroid          SPK-ID: 2134404
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 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2870149959175395 8.8346e-08  
a 2.722497443045929 2.1569e-08 au
q 1.94109985054459 2.3912e-07 au
i 17.2107764890021 1.1008e-05 deg
node 154.7618077796567 2.4368e-05 deg
peri 171.671777364904 2.875e-05 deg
M 40.24451476447153 1.7376e-05 deg
tp 2458817.076978893552
(2019-Nov-29.57697889)
7.8073e-05 TDB
period 1640.777332880545
4.49
1.9498e-05
5.338e-08
d
yr
n .2194081992636898 2.6074e-09 deg/d
Q 3.503895035547269 2.7759e-08 au
  Orbit Determination Parameters
   # obs. used (total)      334  
   data-arc span      7530 days (20.62 yr)  
   first obs. used      1997-10-29  
   last obs. used      2018-06-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .59684  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 13:27:06  

Additional Information
 Earth MOID = .931452 au 
 Jupiter MOID = 1.89023 au 
 T_jup = 3.235 
[ 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 15.4   n/a MPO493769  
diameter diameter 2.790 km 0.737 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2016AJ....152...63N)  
geometric albedo albedo 0.172   0.109 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2016AJ....152...63N)  

134404 (1997 UG8)          Discovered 1997-Oct-29 by Tucker, R. A. at Goodricke-Pigott
Reference: 20060907/Numbers.arcLast Updated: 2006-09-10

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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