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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 34 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1089455022693279 3.9019e-08  
a 3.003345710041151 1.3396e-08 au
q 2.676144703172286 1.1969e-07 au
i 14.32626549370627 4.3443e-06 deg
node 127.8449303465124 1.7632e-05 deg
peri 20.99637861070361 2.6756e-05 deg
M 293.4890108504275 2.1028e-05 deg
tp 2458951.734624445956
(2020-Apr-12.23462445)
0.00011179 TDB
period 1901.106364787194
5.20
1.272e-05
3.483e-08
d
yr
n .1893634184115194 1.267e-09 deg/d
Q 3.330546716910015 1.4856e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2480  
   data-arc span      37914 days (103.80 yr)  
   first obs. used      1916-02-08  
   last obs. used      2019-11-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .40738  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-03 20:12:37  

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

[ hide close-approach data ]
Close-Approach Data   ...sorted by Date/Time (TDB)
Date/Time (TDB) Time Uncertainty
(days_HH:MM)
Body Nominal Distance (au) Minimum Distance (au) Maximum Distance (au) V-relative (km/s) V-infinity (km/s) JD (TDB) Time Uncertainty (minutes) Semi-major axis (km) Semi-minor axis (km) range-LOV angle (deg) N-sigma BP Orbit Ref. Reference Modified
1903-Mar-05 12:58 00:02 Jupiter 1.71681707203433 1.71681666908708 1.71681747498315 3.71058757877801 3.57515374269583 2416179.040389149 2.15184796297152 241.339305543893 17.1704725540216 87.3635698692926 3146324.38106989 T 34 CATAB v2.0f-lin.ifort 2019-Dec-03 20:12:49 2019-Dec-03 20:12
1949-Jul-16 22:22 00:01 Jupiter 1.89454736026799 1.8945465029143 1.89454821762253 4.0672756591253 3.95582640472864 2433114.432219541 1.25064071783445 103.269443003254 31.1310461498092 -73.8030849901011 3620875.06891237 T 34 CATAB v2.0f-lin.ifort 2019-Dec-03 20:12:49 2019-Dec-03 20:12
1986-Sep-26 17:09 < 00:01 Jupiter 1.77662624266388 1.77662574924756 1.77662673608059 3.32025505762663 3.1734170364317 2446700.214915041 0.583939952980363 69.1171874766686 18.9033675639959 75.833860073868 2834730.386985 T 34 CATAB v2.0f-lin.ifort 2019-Dec-03 20:12:49 2019-Dec-03 20:12
2033-Jan-31 16:26 < 00:01 Jupiter 1.77171924616174 1.77171886766898 1.77171962465451 3.95250462145604 3.82963887796631 2463629.184820630 0.445876509115437 72.1826157660633 17.5259402175716 88.7086968379431 3523781.25743263 T 34 CATAB v2.0f-lin.ifort 2019-Dec-03 20:12:49 2019-Dec-03 20:12
2070-May-09 16:32 00:01 Jupiter 1.88766880933392 1.88766806788822 1.88766955078049 2.74758953115369 2.57911248144392 2477241.189122648 1.35957375031273 85.94919328402 22.9248252831149 62.9386504770069 2478275.62310204 T 34 CATAB v2.0f-lin.ifort 2019-Dec-03 20:12:49 2019-Dec-03 20:12
2116-Aug-17 11:07 00:02 Jupiter 1.73240081506761 1.73240042466416 1.73240120547107 3.69533133733999 3.56056371107065 2494141.963292463 2.06244921815668 225.978696794282 17.7751861095375 88.8178616446056 3122443.32095698 T 34 CATAB v2.0f-lin.ifort 2019-Dec-03 20:12:49 2019-Dec-03 20:12
2162-Dec-29 20:35 00:03 Jupiter 1.93508350749128 1.93508167979646 1.93508533519237 4.18017120172707 4.07411261354988 2511077.357952209 2.96667762841964 209.939819351742 33.5985490704701 -66.5760878081736 3790280.35560903 T 34 CATAB v2.0f-lin.ifort 2019-Dec-03 20:12:49 2019-Dec-03 20:12
2200-Mar-14 04:39 00:04 Jupiter 1.76553845260475 1.76553733454815 1.76553957068313 3.21943801952318 3.06680207961521 2524665.694037113 3.96977836221585 344.840741158263 19.4959213868121 77.9113718737447 2529333.48225972 T 34 CATAB v2.0f-lin.ifort 2019-Dec-03 20:12:49 2019-Dec-03 20:12
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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