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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 2459000.5 (2020-May-31.0) TDB
Reference: JPL 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2248377604545871 1.3515e-07  
a 2.307034274103383 1.3221e-08 au
q 1.788325854622004 3.1378e-07 au
i 2.302722508231618 1.1402e-05 deg
node 199.9687656948222 0.00010371 deg
peri 167.5013981796288 0.00010559 deg
M 25.20462723559339 1.5493e-05 deg
tp 2458910.889835449889
(2020-Mar-02.38983545)
5.5046e-05 TDB
period 1279.910190160782
3.50
1.1002e-05
3.012e-08
d
yr
n .2812697349919347 2.4178e-09 deg/d
Q 2.825742693584762 1.6194e-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 = .787304 au 
 Jupiter MOID = 2.63853 au 
 T_jup = 3.552 
[ 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 17.9   n/a MPO472391  
rotation period rot_per 1.33 h n/a LCDB (Rev. 2019-August); 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. Series 237, A19.]
[Erasmus, N.; McNeill, A.; Mommert, N.; Trilling, D.E.; et al. (2019) Ap. J. Suppl. Series 242, A15.]

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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