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277370 (2005 US1)
Classification: Main-belt Asteroid          SPK-ID: 2277370
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.


Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2238180976563884 9.5345e-08  
a 2.648084614842651 1.2176e-08 au
q 2.055395353915419 2.5145e-07 au
i 1.324288759413894 8.2155e-06 deg
node 224.9788451174502 0.00022323 deg
peri 186.4932751360022 0.00022404 deg
M 219.2642727459812 1.4191e-05 deg
tp 2460011.815811254746
(2023-Mar-08.31581125)
6.3522e-05 TDB
period 1573.969143257354
4.31
1.0856e-05
2.972e-08
d
yr
n .2287211293449974 1.5775e-09 deg/d
Q 3.240773875769884 1.4902e-08 au
  Orbit Determination Parameters
   # obs. used (total)      254  
   data-arc span      10024 days (27.44 yr)  
   first obs. used      1992-11-16  
   last obs. used      2020-04-27  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .63604  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-14 04:00:38  

Additional Information
 Earth MOID = 1.06576 au 
 Jupiter MOID = 2.14078 au 
 T_jup = 3.355 
[ 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 17.25   n/a E2021B55  

277370 (2005 US1)          Discovered 2005-Oct-22 by Healy, D. at Junk Bond
Reference: 20110517/Numbers.arcLast Updated: 2011-05-20

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