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JPL Small-Body Database Browser
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105 Artemis
Classification: Main-belt Asteroid          SPK-ID: 2000105
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.

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 112 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1772935264572297 2.9879e-08  
a 2.373799295416408 4.2648e-09 au
q 1.952940047230346 7.1511e-08 au
i 21.43973573257711 4.1274e-06 deg
node 188.2418778010918 1.1028e-05 deg
peri 57.10668308726436 1.6263e-05 deg
M 274.1524631786475 1.3264e-05 deg
tp 2459319.058912210536
4.9605e-05 TDB
period 1335.870691717606
n .269487160869685 7.2625e-10 deg/d
Q 2.794658543602471 5.0209e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2547  
   # delay obs. used      2  
   # Doppler obs. used      0  
   data-arc span      42203 days (115.55 yr)  
   first obs. used      1904-06-18  
   last obs. used      2020-01-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .43853  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jan-28 17:15:03  

Additional Information
 Earth MOID = 1.01156 au 
 Jupiter MOID = 2.31287 au 
 T_jup = 3.429 
[ 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 8.7   n/a MPO502153 IRAS observations used: 9
magnitude slope G 0.10   n/a PDS3 (MPC 17257) Fit
diameter diameter 94.864 km 23.222 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (  
rotation period rot_per 37.150 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Published Reference List:
[Higley, S.; Hardersen, P.; Dyvig, R. (2008) Minor Planet Bull. 35, 63-66.]
[Pilcher, F. (2010) Minor Planet Bull. 37, 167.]
[Higgins, D.J. (2011)]
geometric albedo albedo 0.032   0.016 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (  
B-V BV 0.693   0.026 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=5; phase (min.=11.12, mean=19.38, max.=27.00) deg.
U-B UB 0.317   0.016 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=4; phase (min.=11.12, mean=18.99, max.=27.00) deg.
Tholen spectral type spec_T C   n/a EAR-A-5-DDR-TAXONOMY-V4.0 used 7 color indices; used ground-based radiometric albedo
SMASSII spectral type spec_B Ch   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)

105 Artemis          Discovered 1868-Sep-16 by Watson, J. C. at Ann Arbor
Reference: DISCOVERY.DBLast Updated: 2003-08-29
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
FirstGov 2020-Feb-20 14:07 UT
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