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356 Liguria (A893 BE)
Classification: Main-belt Asteroid          SPK-ID: 2000356
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 67 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2405109744427257 3.4577e-08  
a 2.755395155847657 7.0519e-09 au
q 2.092692381939971 9.6392e-08 au
i 8.204481415029543 5.0488e-06 deg
node 354.5107750496979 2.8437e-05 deg
peri 79.41650738516856 3.0356e-05 deg
M 329.4592487448309 1.1537e-05 deg
tp 2459142.226635626142
(2020-Oct-19.72663563)
5.3799e-05 TDB
period 1670.606868806989
4.57
6.4134e-06
1.756e-08
d
yr
n .2154905541942866 8.2726e-10 deg/d
Q 3.418097929755343 8.748e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2474  
   data-arc span      46350 days (126.90 yr)  
   first obs. used      1893-02-10  
   last obs. used      2020-01-06  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .46893  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jan-28 17:24:47  

Additional Information
 Earth MOID = 1.1257 au 
 Jupiter MOID = 1.97082 au 
 T_jup = 3.287 
[ 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 8.3   n/a MPO502156 IRAS observations used: 19
diameter diameter 145.503 km 1.441 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
rotation period rot_per 31.701 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Published Reference List:
[Harris, A.W.; Young, J.W. (1980) Icarus 43, 20-32.]
[Pilcher, F. (2017) Minor Planet Bull. 44, 294-297.]
geometric albedo albedo 0.065   0.006 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
B-V BV 0.733   0.033 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=6; phase (min.=7.62, mean=14.60, max.=19.11) deg.
U-B UB 0.349   0.040 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=6; phase (min.=7.62, mean=14.60, max.=19.11) deg.
Tholen spectral type spec_T C   n/a EAR-A-5-DDR-TAXONOMY-V4.0 used 2 color indices; used ground-based radiometric albedo

356 Liguria (A893 BE)          Discovered 1893-Jan-21 by Charlois, A. at Nice
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 A893 BE = 1951 WU2 = 1953 FX1 = A893 CA 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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