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94 Aurora
Classification: Main-belt Asteroid          SPK-ID: 2000094
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 95 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09394476439439903 2.9872e-08  
a 3.156538536515994 1.2514e-08 au
q 2.859998267401158 9.8587e-08 au
i 7.970756953848873 3.5663e-06 deg
node 2.574720384408201 2.6135e-05 deg
peri 60.46842160934903 3.3964e-05 deg
M 308.8636353718973 2.1917e-05 deg
tp 2458891.466117977179
(2020-Feb-11.96611798)
0.00012527 TDB
period 2048.401430832621
5.61
1.2181e-05
3.335e-08
d
yr
n .1757468016675176 1.0451e-09 deg/d
Q 3.45307880563083 1.369e-08 au
  Orbit Determination Parameters
   # obs. used (total)      3720  
   data-arc span      53813 days (147.33 yr)  
   first obs. used      1872-07-26  
   last obs. used      2019-11-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .38766  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-03 20:01:28  

Additional Information
 Earth MOID = 1.88276 au 
 Jupiter MOID = 1.8752 au 
 T_jup = 3.184 
[ 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 7.57   n/a IRAS-A-FPA-3-RDR-IMPS-V6.0 IRAS observations used: 16
diameter diameter 204.89 km 3.6 IRAS-A-FPA-3-RDR-IMPS-V6.0 IRAS observations used: 16
rotation period rot_per 7.22 h n/a LCDB (Rev. 2019-January); Warner et al., 2009 Published Reference List:
[Harris, A.W.; Young, J.W. (1983) Icarus 54, 59-109.]
[Behrend, R. (2010) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
[Marciniak, A.; Michalowski, T.; Polinska, M.; Bartczak, P.; et al. (2011) Astron. Astrophys. 529, A107.]
[Hanus, J.; Durech, J.; Oszkiewicz, D.A.; Behrend, R.; et al. (2016) Astron. Astrophys. 586, A108.]
[Hanus, J.; Viikinkoski, M.; Marchis, F.; Durech, J.; et al (2017) Astron. Astrophys. 601, A114.]
geometric albedo albedo 0.0395   0.001 IRAS-A-FPA-3-RDR-IMPS-V6.0 IRAS observations used: 16
B-V BV 0.663   0.018 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=5; phase (min.=2.84, mean=9.35, max.=17.06) deg.
U-B UB 0.301   0.038 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=5; phase (min.=2.84, mean=9.35, max.=17.06) deg.
Tholen spectral type spec_T CP   n/a EAR-A-5-DDR-TAXONOMY-V4.0 used 7 color indices; used ground-based radiometric albedo
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)

94 Aurora          Discovered 1867-Sep-06 by Watson, J. C. at Ann Arbor
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 A912 TC 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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