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JPL Small-Body Database Browser
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816 Juliana (A916 CE)
Classification: Main-belt Asteroid          SPK-ID: 2000816
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 33 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1089455027464151 3.9038e-08  
a 3.003345710959585 1.3573e-08 au
q 2.676144702557804 1.1971e-07 au
i 14.32626552302938 4.3474e-06 deg
node 127.8449306874805 1.781e-05 deg
peri 20.99637954932578 2.7061e-05 deg
M 293.4890092343092 2.1419e-05 deg
tp 2458951.734633141550
(2020-Apr-12.23463314)
0.00011391 TDB
period 1901.106365659242
5.20
1.2887e-05
3.528e-08
d
yr
n .1893634183246573 1.2837e-09 deg/d
Q 3.330546719361366 1.5052e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2424  
   data-arc span      37886 days (103.73 yr)  
   first obs. used      1916-02-08  
   last obs. used      2019-10-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .4118  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-07 01:57:52  

Additional Information
 Earth MOID = 1.69385 au 
 Jupiter MOID = 1.71662 au 
 T_jup = 3.196 
[ 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 10.4   n/a MPO267709  
diameter diameter 50.745 km 0.250 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
rotation period rot_per 10.557 h n/a LCDB (Rev. 2019-January); Warner et al., 2009 Published Reference List:
[Behrend, R. (2005) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
[Stephens, R.D. (2005) Minor Planet Bull. 32, 82-83.]
[Behrend, R. (2010) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
[Hanus, J.; Durech, J.; Broz, M.; Marciniak, A.; et al. (2013) Astron. Astrophys. 551, A67.]
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]
[Behrend, R. (2016) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
geometric albedo albedo 0.043   0.005 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  

816 Juliana (A916 CE)          Discovered 1916-Feb-08 by Wolf, M. at Heidelberg
Reference: DISCOVERY.DBLast Updated: 2003-08-29

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