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JPL Small-Body Database Browser
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434178 (2002 US27)
Classification: Main-belt Asteroid          SPK-ID: 2434178
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 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2251258965186117 1.3526e-07  
a 2.30802135108158 1.3265e-08 au
q 1.788425975235242 3.1411e-07 au
i 2.302868170603501 1.1403e-05 deg
node 199.9901188921472 0.00010369 deg
peri 167.3906733676604 0.00010556 deg
M 272.8215487648548 1.5459e-05 deg
tp 2458910.645017462225
(2020-Mar-02.14501746)
5.507e-05 TDB
period 1280.731702668622
3.51
1.1041e-05
3.023e-08
d
yr
n .2810893173409223 2.4232e-09 deg/d
Q 2.827616726927918 1.6251e-08 au
  Orbit Determination Parameters
   # obs. used (total)      255  
   data-arc span      5178 days (14.18 yr)  
   first obs. used      2002-10-11  
   last obs. used      2016-12-14  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .50977  
   source      ORB  
   producer      Otto Matic  
   solution date      2017-Apr-09 13:48:08  

Additional Information
 Earth MOID = .786532 au 
 Jupiter MOID = 2.63316 au 
 T_jup = 3.551 
[ 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 18.1   n/a MPO397532  
rotation period rot_per 1.33 h n/a LCDB (Rev. 2019-January); Warner et al., 2009 lower-limit; Incomplete or inconclusive result.
Published Reference List:
[Erasmus, N.; McNeill, A.; Mommert, M.; Trilling, D.E.; et al. (2018) Ap. J. Suppl. 237, A19.]

434178 (2002 US27)          Discovered 2002-Oct-31 by NEAT at Palomar
Reference: Last Updated: 2015-06-04
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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