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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 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .287039270521686 3.884e-08  
a 2.723132364605939 1.5527e-08 au
q 1.941486437135457 1.0831e-07 au
i 17.21066577445581 4.9438e-06 deg
node 154.7579639316684 1.9021e-05 deg
peri 171.7181203649512 2.1213e-05 deg
M 84.0763729268061 1.034e-05 deg
tp 2458817.169812397276
(2019-Nov-29.66981240)
4.5702e-05 TDB
period 1641.351342036575
4.49
1.4038e-05
3.843e-08
d
yr
n .2193314683943993 1.8759e-09 deg/d
Q 3.504778292076422 1.9984e-08 au
  Orbit Determination Parameters
   # obs. used (total)      448  
   data-arc span      8502 days (23.28 yr)  
   first obs. used      1997-10-29  
   last obs. used      2021-02-07  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .56444  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 18:08:13  

Additional Information
 Earth MOID = .929909 au 
 Jupiter MOID = 1.88977 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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