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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 2459000.5 (2020-May-31.0) TDB
Reference: JPL 39 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1086553199578939 3.9083e-08  
a 3.002660933895471 1.1507e-08 au
q 2.676405849397991 1.1969e-07 au
i 14.3281284473192 4.2957e-06 deg
node 127.8423997748795 1.4704e-05 deg
peri 20.95328255936032 2.2886e-05 deg
M 9.268314278216732 1.6639e-05 deg
tp 2458951.572151572520
(2020-Apr-12.07215157)
8.7834e-05 TDB
period 1900.456210822593
5.20
1.0924e-05
2.991e-08
d
yr
n .1894282004236119 1.0889e-09 deg/d
Q 3.328916018392952 1.2757e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2947  
   data-arc span      38116 days (104.36 yr)  
   first obs. used      1916-02-08  
   last obs. used      2020-06-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .37644  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jun-23 15:21:21  

Additional Information
 Earth MOID = 1.69364 au 
 Jupiter MOID = 1.71674 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 10.5   n/a MPO502160  
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-August); 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 1.71681707369976 1.71681669201516 1.71681745538494 3.71058751974908 3.57515368156463 2416179.040493173 1.85792731241392 207.131906137874 16.6858040276425 87.6607719160511 3160533.61094452 T 39 CATAB v2.0f-lin.ifort 2020-Jun-23 15:21:34 2020-Jun-23 15:21
1949-Jul-16 22:22 00:01 Jupiter 1.89454716320798 1.89454644595581 1.89454788046069 4.06727563090225 3.95582636395484 2433114.432284658 1.07978426459264 93.2684592446378 28.2452182956001 -76.9228088641359 3832059.59221915 T 39 CATAB v2.0f-lin.ifort 2020-Jun-23 15:21:34 2020-Jun-23 15:21
1986-Sep-26 17:10 < 00:01 Jupiter 1.7766263280942 1.77662589058505 1.77662676560355 3.32025502353298 3.17341700798466 2446700.214938657 0.51371932162919 61.4667277013799 17.792273849348 78.6737683033023 2869757.90242149 T 39 CATAB v2.0f-lin.ifort 2020-Jun-23 15:21:34 2020-Jun-23 15:21
2033-Jan-31 16:26 < 00:01 Jupiter 1.77171916002061 1.77171878175618 1.77171953828505 3.95250469627302 3.82963894911407 2463629.184788724 0.394645809176304 63.8431946973818 17.4486659275943 88.1332451948662 3555340.45586376 T 39 CATAB v2.0f-lin.ifort 2020-Jun-23 15:21:34 2020-Jun-23 15:21
2070-May-09 16:32 00:01 Jupiter 1.88766890140495 1.88766819305572 1.88766960975482 2.74758972231665 2.57911269358021 2477241.189048682 1.17726762204989 75.1909226540831 21.1596796321832 62.3026728245345 2715038.01708783 T 39 CATAB v2.0f-lin.ifort 2020-Jun-23 15:21:34 2020-Jun-23 15:21
2116-Aug-17 11:07 00:02 Jupiter 1.73240079164945 1.73240041369519 1.73240116960372 3.69533157586816 3.56056395677091 2494141.963166697 1.78066663590733 195.599518310569 17.0890511289989 88.6697307717429 3139580.00840544 T 39 CATAB v2.0f-lin.ifort 2020-Jun-23 15:21:34 2020-Jun-23 15:21
2162-Dec-29 20:35 00:03 Jupiter 1.93508350827255 1.93508187086663 1.93508514568287 4.18017125365097 4.07411266686886 2511077.357784897 2.56284835007614 181.221473213481 33.1466992654894 -66.0619197104232 3967760.64000326 T 39 CATAB v2.0f-lin.ifort 2020-Jun-23 15:21:34 2020-Jun-23 15:21
2200-Mar-14 04:39 00:03 Jupiter 1.76553842318522 1.76553740889467 1.76553943749172 3.21943856690747 3.06680265163632 2524665.693807231 3.42623710693562 297.610676090164 18.3759524325002 77.6151074864603 2557958.74068581 T 39 CATAB v2.0f-lin.ifort 2020-Jun-23 15:21:34 2020-Jun-23 15:21
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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