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526 Jena (A904 EE)
Classification: Main-belt Asteroid          SPK-ID: 2000526
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 42 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1335196573382354 3.0513e-08  
a 3.120829717267734 1.0758e-08 au
q 2.704137602807164 9.3174e-08 au
i 2.173689314437754 3.373e-06 deg
node 137.7655104142702 9.3223e-05 deg
peri 357.3869228470512 9.4149e-05 deg
M 64.9560172669466 1.3524e-05 deg
tp 2458637.153966238322
(2019-Jun-02.65396624)		 7.5161e-05 TDB
period 2013.740645714822
5.51		 1.0412e-05
2.851e-08		 d
yr
n .1787717801525578 9.2434e-10 deg/d
Q 3.537521831728304 1.2194e-08 au
   Orbit Determination Parameters
   # obs. used (total)      3426  
   data-arc span      43422 days (118.88 yr)  
   first obs. used      1901-10-11  
   last obs. used      2020-08-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .44873  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 04:28:39  

Additional Information
 Earth MOID = 1.71814 au 
 Jupiter MOID = 1.49655 au 
 T_jup = 3.201 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456260.5 (2012-Nov-29.0) TDB
Reference: JPL 42 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1368432921552507 3.0262e-08  
q 2.696217964436507 9.3422e-08 au
tp 2456622.834656821952
(2013-Nov-26.33465682)		 7.1908e-05 TDB
node 137.8568850311636 9.3478e-05 deg
peri 357.479763941264 9.4371e-05 deg
i 2.170832182769363 3.3685e-06 deg
   Orbit Determination Parameters
   # obs. used (total)      3426  
   data-arc span      43422 days (118.88 yr)  
   first obs. used      1901-10-11  
   last obs. used      2020-08-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .44873  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 04:28:39  

Additional Information
 Jupiter MOID = 1.49655 au 
 T_jup = 3.201 
Orbit Covariance (6×6)
  e q tp node peri i
e 9.157667109017198E-16 -2.813999026587522E-15 5.005587362265487E-13 4.416187521436839E-16 7.952252907273519E-14 -1.908232697700914E-16
q -2.813999026587522E-15 8.72761646381155E-15 -1.502796040158499E-12 -1.428437856929362E-15 -2.403481451510985E-13 4.964551664214019E-16
tp 5.005587362265487E-13 -1.502796040158499E-12 5.170783700263551E-9 7.632392336057535E-13 9.491932818267571E-10 -3.484044228531512E-13
node 4.416187521436839E-16 -1.428437856929362E-15 7.632392336057535E-13 8.738160655257928E-9 -8.731560719623076E-9 6.202759838074516E-11
peri 7.952252907273519E-14 -2.403481451510985E-13 9.491932818267571E-10 -8.731560719623076E-9 8.905856430106002E-9 -6.205784051357056E-11
i -1.908232697700914E-16 4.964551664214019E-16 -3.484044228531512E-13 6.202759838074516E-11 -6.205784051357056E-11 1.134666259769965E-11

[ 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 10.1   n/a MPO473768 IRAS observations used: 10
diameter diameter 44.840 km 0.223 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
rotation period rot_per 9.474 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Published Reference List:
[Barucci, M.A.; Di Martino, M.; Dotto, E.; Fulchignoni, M.; et al. (1994) Icarus 109, 267-273.]
[Behrend, R. (2008) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
[Hamanowa, H.; Hamanowa, H. (2011) http://www2.ocn.ne.jp/~hamaten/astlcdata.htm]
[Hanus, J.; Durech, J.; Oszkiewicz, D.A.; Behrend, R.; et al. (2016) Astron. Astrophys. 586, A108.]
geometric albedo albedo 0.077   0.015 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
B-V BV 0.643   0.020 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=1; phase=19.05 deg.
U-B UB 0.367   0.028 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=1; phase=19.05 deg.
Tholen spectral type spec_T B   n/a EAR-A-5-DDR-TAXONOMY-V4.0 used 7 color indices; used ground-based radiometric albedo

526 Jena (A904 EE)          Discovered 1904-Mar-14 by Wolf, M. at Heidelberg
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 A904 EE = A901 TF 
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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