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JPL Small-Body Database Browser
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905 Universitas (A918 UE)
Classification: Main-belt Asteroid          SPK-ID: 2000905
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 26 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1536862872096999 4.3076e-08  
a 2.21559139605716 5.591e-09 au
q 1.87508538042338 9.4752e-08 au
i 5.325790230889379 4.3627e-06 deg
node 37.17635844693153 3.4661e-05 deg
peri 343.1421947029895 3.627e-05 deg
M 179.3403060854251 1.2023e-05 deg
tp 2458000.421125798189
(2017-Sep-03.92112580)
3.971e-05 TDB
period 1204.572465766571
3.30
4.5596e-06
1.248e-08
d
yr
n .298861222741715 1.1313e-09 deg/d
Q 2.556097411690941 6.4502e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2624  
   data-arc span      36814 days (100.79 yr)  
   first obs. used      1918-11-01  
   last obs. used      2019-08-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .41351  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-23 19:13:16  

Additional Information
 Earth MOID = .877864 au 
 Jupiter MOID = 2.89773 au 
 T_jup = 3.633 
[ 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 11.59   n/a MPO256868  
diameter diameter 12.070 km 0.419 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
rotation period rot_per 14.238 h n/a LCDB (Rev. 2019-January); Warner et al., 2009 Published Reference List:
[Fauerbach, M.; Marks, S.A.; Lucas, M.P. (2008) Minor Planet Bull. 35, 44-46.]
[Stephens, R.D. (2008) Minor Planet Bull. 35, 60-61.]
[Behrend, R. (2009) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
[Kryszczynska, A.; Colas, F.; Polinska, M.; Hirsch, R.; et al. (2012) Astron. Astrophys. 546, A72.]
geometric albedo albedo 0.280   0.038 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
B-V BV 0.850   0.020 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=1; phase=8.53 deg.
SMASSII spectral type spec_B S   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)

905 Universitas (A918 UE)          Discovered 1918-Oct-30 by Schwassmann, A. at Bergedorf
Reference: DISCOVERY.DBLast Updated: 2003-08-29

Alternate Designations
 A918 UE = 1961 WE 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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