Skip Page Navigation
NASA JPL Caltech
NASA Logo - Jet Propulsion Laboratory + View the NASA Portal
+ Center for Near-Earth Object Studies
JPL Home Earth Solar System Stars & Galaxies Technology
JPL Solar System Dynamics
BODIES ORBITS EPHEMERIDES TOOLS PHYSICAL DATA DISCOVERY FAQ SITE MAP
JPL Small-Body Database Browser
Search: [ help ]  
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 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 45 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1084699393575977 1.8036e-08  
a 3.001940706484866 1.0733e-08 au
q 2.676320380097348 5.3086e-08 au
i 14.32830143819508 5.015e-07 deg
node 127.8429638626608 2.8939e-06 deg
peri 20.88978608234232 9.9463e-06 deg
M 47.22329380421242 8.2995e-06 deg
tp 2458951.295794751777
(2020-Apr-11.79579475)
4.3479e-05 TDB
period 1899.772477991732
5.20
1.0188e-05
2.789e-08
d
yr
n .1894963761031845 1.0163e-09 deg/d
Q 3.327561032872383 1.1897e-08 au
  Orbit Determination Parameters
   # obs. used (total)      3142  
   data-arc span      38395 days (105.12 yr)  
   first obs. used      1916-02-08  
   last obs. used      2021-03-23  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .36995  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-03 18:54:54  

Additional Information
 Earth MOID = 1.69341 au 
 Jupiter MOID = 1.71746 au 
 T_jup = 3.197 
[ 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 10.47   n/a MPCxxxxx  
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. 2020-October); 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]
[Pal, A.; Szakats, R.; Kiss, C.; Bodi, A.; et al. (2019) Ap. J. Supl. Ser. 247, id.26.]
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 12:59 00:02 Jupiter 1.71681709081431 1.71681688357402 1.71681729805879 3.71058818770783 3.57515437696499 2416179.040734847 1.77029005723911 194.972319251368 6.46023644938299 86.9488912905184 13238127.1568948 T 45 CATAB v2.0g-lin.ifort 2021-May-03 18:56:00 2021-May-03 18:56
1949-Jul-16 22:23 00:01 Jupiter 1.89454725687123 1.89454663100616 1.89454788273705 4.06727602307349 3.95582677338671 2433114.432299953 1.0452454558995 76.1498604920845 15.8813329601446 -69.5166296689277 7709086.61792102 T 45 CATAB v2.0g-lin.ifort 2021-May-03 18:56:00 2021-May-03 18:56
1986-Sep-26 17:09 < 00:01 Jupiter 1.77662625462049 1.77662603252208 1.7766264767191 3.3202564892459 3.17341853613479 2446700.214880542 0.497667499626278 43.8740188601798 5.06946861602844 74.8084806639299 16221992.3049428 T 45 CATAB v2.0g-lin.ifort 2021-May-03 18:56:00 2021-May-03 18:56
2033-Jan-31 16:26 < 00:01 Jupiter 1.77171919858566 1.77171890570717 1.77171949146416 3.95250546347229 3.82963974433423 2463629.184833308 0.310613307050337 28.9129596108375 10.1657280203727 -71.0950875341282 9589399.99377639 T 45 CATAB v2.0g-lin.ifort 2021-May-03 18:56:00 2021-May-03 18:56
2070-May-09 16:32 00:01 Jupiter 1.88766888523961 1.88766846647496 1.8876693040049 2.74759116797324 2.57911423314351 2477241.189042110 1.05423174591054 61.6497065920005 3.85408876128705 62.3779719164238 17536807.6580582 T 45 CATAB v2.0g-lin.ifort 2021-May-03 18:56:00 2021-May-03 18:56
2116-Aug-17 11:07 00:02 Jupiter 1.73240072258477 1.73240052287171 1.73240092230018 3.69533214421064 3.56056454190939 2494141.963464597 1.61819991103305 173.248120735058 7.04266675397497 -89.3720541063031 12245024.5093471 T 45 CATAB v2.0g-lin.ifort 2021-May-03 18:56:00 2021-May-03 18:56
2162-Dec-29 20:36 00:02 Jupiter 1.93508285967923 1.93508134500711 1.93508437435488 4.18017086743935 4.07411223518579 2511077.358655901 2.34178268038223 155.081649508116 16.1425267577557 -62.3323307536645 6953862.25684529 T 45 CATAB v2.0g-lin.ifort 2021-May-03 18:56:00 2021-May-03 18:56
2200-Mar-14 04:41 00:03 Jupiter 1.76553882389406 1.76553806334171 1.76553958446196 3.2194365950139 3.06680061796954 2524665.695162665 3.15531473820243 274.507255559116 5.1506569233852 78.5707485551991 15357773.5370486 T 45 CATAB v2.0g-lin.ifort 2021-May-03 18:56:00 2021-May-03 18:56
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2021-May-09 05:54 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin