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JPL Small-Body Database Browser
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814 Tauris (A916 AE)
Classification: Main-belt Asteroid          SPK-ID: 2000814
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 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 70 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3072045134680911 3.7672e-08  
a 3.153396205829029 1.3433e-08 au
q 2.184658658645198 1.1477e-07 au
i 21.82385570913953 4.3909e-06 deg
node 88.78421335118354 1.0827e-05 deg
peri 296.6646568123889 1.2633e-05 deg
M 176.7057165192925 8.7388e-06 deg
tp 2457596.544792838081
4.5436e-05 TDB
period 2045.34342010849
n .1760095622381618 1.1247e-09 deg/d
Q 4.122133753012861 1.756e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2357  
   data-arc span      37723 days (103.28 yr)  
   first obs. used      1916-01-30  
   last obs. used      2019-05-12  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .43033  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-29 19:14:28  

Additional Information
 Earth MOID = 1.27916 au 
 Jupiter MOID = 1.71511 au 
 T_jup = 3.026 
[ 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 8.74   n/a IRAS-A-FPA-3-RDR-IMPS-V6.0 IRAS observations used: 5
diameter diameter 102.229 km 2.138 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (  
rotation period rot_per 35.8 h n/a LCDB (Rev. 2019-January); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Debehogne, H.; De Sanctis, G.; Zappala, V. (1983) Icarus 55, 236-244.]
[Alkema, M.S. (2013) Minor Planet Bull. 40, 215-216.]
geometric albedo albedo 0.054   0.011 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (  
B-V BV 0.701   0.009 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=9; phase (min.=7.29, mean=14.30, max.=15.96) deg.
U-B UB 0.316   0.023 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=10; phase (min.=7.29, mean=14.43, max.=15.96) deg.
Tholen spectral type spec_T C   n/a EAR-A-5-DDR-TAXONOMY-V4.0 used 2 color indices
SMASSII spectral type spec_B C   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)

814 Tauris (A916 AE)          Discovered 1916-Jan-02 by Neujmin, G. at Simeis
Reference: DISCOVERY.DBLast Updated: 2003-08-29

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Alternate Designations
 A916 AE = 1927 BA = A907 JE 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
FirstGov 2019-Dec-11 17:23 UT
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