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855 Newcombia (A916 GP)
Classification: Main-belt Asteroid          SPK-ID: 2000855
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

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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 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 49 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1785646634328372 1.8425e-08  
a 2.362410119289781 6.315e-09 au
q 1.940567151448472 4.3289e-08 au
i 10.8810234079817 9.5827e-07 deg
node 17.10903683654946 1.6257e-06 deg
peri 234.0096732979807 3.8851e-06 deg
M 265.8747206995512 5.2252e-06 deg
tp 2459547.264911341119
(2021-Nov-28.76491134)
2.0088e-05 TDB
period 1326.268235383686
3.63
5.3179e-06
1.456e-08
d
yr
n .2714383036519404 1.0884e-09 deg/d
Q 2.78425308713109 7.4426e-09 au
  Orbit Determination Parameters
   # obs. used (total)      3005  
   data-arc span      38306 days (104.88 yr)  
   first obs. used      1916-04-28  
   last obs. used      2021-03-14  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .41031  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-12 11:32:15  

Additional Information
 Earth MOID = .948423 au 
 Jupiter MOID = 2.29706 au 
 T_jup = 3.505 
[ 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 11.77   n/a E2021B10  
diameter diameter 12.392 km 0.088 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
rotation period rot_per 3.003 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Published Reference List:
[Cooney, Jr.; W.R.; Gross, J.; Terrell, D.; Reddy, V.; Dyvig, R. (2007) Minor Planet Bull. 34, 47-48.]
[Klinglesmith III, D.A.; Hanowell, J.; Risley, E.; Turk, J.; et al. (2014) Minor Planet Bull. 41, 139-143.]
[Stephens, R.D. (2014) Minor Planet Bull. 41, 171-175.]
[Klinglesmith III, D.A.; Hendrickx, S.; Madden, K.; Montgomery, S. (2016) Minor Planet Bull. 43, 123-128.]
[Klinglesmith III, D.A.; Hendrickx, S.; Kimber, C.; Madden, K. (2017) Minor Planet Bull. 44, 244-246.]
[Stephens, R.D.; Warner, B.D. (2020) Minor Planet Bull. 47, 50-60.]
geometric albedo albedo 0.219   0.040 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  

855 Newcombia (A916 GP)          Discovered 1916-Apr-03 by Belyavskij, S. at Simeis
Independent discovery Apr. 28 by M. Wolf, Heidelberg, was announced first.
Reference: DISCOVERY.DBLast Updated: 2003-08-29

Alternate Designations
 A916 GP = 1935 SJ1 = 1938 KB 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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