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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.


Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 75 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2406932063528719 2.1996e-08  
a 2.75607837009948 5.659e-09 au
q 2.092709030240439 6.2206e-08 au
i 8.204254171883358 5.94e-07 deg
node 354.5075356235916 2.4966e-06 deg
peri 79.408747903975 4.7584e-06 deg
M 12.56002582376943 2.992e-06 deg
tp 2459142.192583028511
(2020-Oct-19.69258303)
1.3826e-05 TDB
period 1671.228260535238
4.58
5.1473e-06
1.409e-08
d
yr
n .2154104310590727 6.6345e-10 deg/d
Q 3.419447709958522 7.0211e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2839  
   data-arc span      46801 days (128.13 yr)  
   first obs. used      1893-01-23  
   last obs. used      2021-03-14  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .46082  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-12 10:45:06  

Additional Information
 Earth MOID = 1.12524 au 
 Jupiter MOID = 1.97012 au 
 T_jup = 3.286 
[ 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 8.43   n/a E2021B10 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. 2020-October); 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

[ hide close-approach data ]
Close-Approach Data   ...sorted by Date/Time (TDB)
Date/Time (TDB) Time Uncertainty
(days_HH:MM)
Body Nominal Distance (au) Minimum Distance (au) Maximum Distance (au) V-relative (km/s) V-infinity (km/s) JD (TDB) Time Uncertainty (minutes) Semi-major axis (km) Semi-minor axis (km) range-LOV angle (deg) N-sigma BP Orbit Ref. Reference Modified
1995-Oct-03 11:18 < 00:01 Jupiter 1.99533970188036 1.99533951789553 1.99533988586508 1.30725109360261 0.927310418445257 2449993.970844904 0.183923401104625 101.093269011805 18.0153376991651 11.226465534217 5057384.0441386 T 75 CATAB v2.0f-lin.ifort 2021-Apr-12 10:46:12 2021-Apr-12 10:46
2055-Jun-19 23:12 < 00:01 Jupiter 1.97606968335834 1.97606949337915 1.97606987333765 1.54803740461491 1.24062073334553 2471803.466333743 0.415048070456608 66.7725099247668 13.9391001108932 35.2877101495772 9272228.01337854 T 75 CATAB v2.0f-lin.ifort 2021-Apr-12 10:46:12 2021-Apr-12 10:46
2115-Mar-06 11:59 < 00:01 Jupiter 1.97861779331405 1.97861755376094 1.97861803286728 1.99421049380003 1.76655017381409 2493611.999116956 0.946629781215235 56.4763118870995 7.7752839527399 55.7966934724437 12171968.5143311 T 75 CATAB v2.0f-lin.ifort 2021-Apr-12 10:46:12 2021-Apr-12 10:46

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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