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1398 Donnera (1936 QL)
Classification: Main-belt Asteroid          SPK-ID: 2001398
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

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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.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 36 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1005900193741006 3.8613e-08  
a 3.161253809907011 1.5557e-08 au
q 2.843263227922015 1.2375e-07 au
i 11.85241133618477 4.8485e-06 deg
node 296.8981235131169 1.8823e-05 deg
peri 71.95845543977937 2.9258e-05 deg
M 317.7376750318284 2.2613e-05 deg
tp 2459241.511829744579
(2021-Jan-27.01182974)
0.00012924 TDB
period 2052.993032763623
5.62
1.5154e-05
4.149e-08
d
yr
n .1753537368392275 1.2944e-09 deg/d
Q 3.479244391892006 1.7121e-08 au
  Orbit Determination Parameters
   # obs. used (total)      3202  
   data-arc span      30555 days (83.66 yr)  
   first obs. used      1936-12-05  
   last obs. used      2020-08-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .36577  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Aug-24 22:33:51  

Additional Information
 Earth MOID = 1.86931 au 
 Jupiter MOID = 2.02156 au 
 T_jup = 3.164 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 10.1   n/a MPO435709  
diameter diameter 24.553 km 1.136 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
rotation period rot_per 7.2311 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Published Reference List:
[Behrend, R. (2006) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
[Brinsfield, J.W. (2010) Minor Planet Bull. 37, 50-53.]
[Behrend, R. (2015) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
geometric albedo albedo 0.267   0.046 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  

1398 Donnera (1936 QL)          Discovered 1936-Aug-26 by Vaisala, Y. at Turku
Reference: DISCOVERY.DBLast Updated: 2003-08-29

Alternate Designations
 1936 QL = 1930 OM = 1930 QZ 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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