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456 Abnoba (A900 LA)
Classification: Main-belt Asteroid          SPK-ID: 2000456
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.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 40 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1787458221397471 2.8875e-08  
a 2.788380844579226 1.0204e-08 au
q 2.28996941807619 8.4285e-08 au
i 14.43747941079078 8.2948e-07 deg
node 229.19709498376 4.3825e-06 deg
peri 6.918789436539955 6.485e-06 deg
M 297.653860928702 3.7732e-06 deg
tp 2459295.032772787686
(2021-Mar-21.53277279)
1.8604e-05 TDB
period 1700.695500683864
4.66
9.3357e-06
2.556e-08
d
yr
n .2116781045491335 1.162e-09 deg/d
Q 3.286792271082262 1.2028e-08 au
  Orbit Determination Parameters
   # obs. used (total)      3108  
   data-arc span      10384 days (28.43 yr)  
   first obs. used      1992-01-10  
   last obs. used      2020-06-15  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .26687  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jun-23 15:14:22  

Additional Information
 Earth MOID = 1.27941 au 
 Jupiter MOID = 1.71903 au 
 T_jup = 3.261 
[ 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 9.2   n/a MPO502157  
diameter diameter 37.713 km 0.222 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
rotation period rot_per 18.281 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Published Reference List:
[Behrend, R. (2004) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
[Warner, B.D. (2010) Minor Planet Bull. 37, 112-118.]
[Ferrero, A. (2013) Minor Planet Bull. 40, 31-32.]
[Behrend, R. (2014) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
geometric albedo albedo 0.286   0.033 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
SMASSII spectral type spec_B S   n/a EAR-A-5-DDR-TAXONOMY-V4.0 based on a high-resolution spectrum by Xu et al. (1995) or Bus and Binzel (2002)

456 Abnoba (A900 LA)          Discovered 1900-Jun-04 by Wolf, M. and Schwassmann, A. at Heidelberg
Reference: DISCOVERY.DBLast Updated: 2003-08-29

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Alternate Designations
 A900 LA = 1952 YF 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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