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5085 Hippocrene (1977 NN)
Classification: Main-belt Asteroid          SPK-ID: 2005085
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 27 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1795238728293304 3.4676e-08  
a 2.255947017836805 6.9464e-09 au
q 1.850950672296964 7.7801e-08 au
i 4.856125648214374 3.8311e-06 deg
node 317.0785242001123 3.756e-05 deg
peri 354.6823641964908 3.8853e-05 deg
M 229.2247746389797 1.22e-05 deg
tp 2459450.088037237000
(2021-Aug-23.58803724)
4.3139e-05 TDB
period 1237.63268584328
3.39
5.7163e-06
1.565e-08
d
yr
n .2908779027233823 1.3435e-09 deg/d
Q 2.660943363376647 8.1935e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1862  
   data-arc span      15629 days (42.79 yr)  
   first obs. used      1977-07-14  
   last obs. used      2020-04-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .49717  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 02:16:28  

Additional Information
 Earth MOID = .836807 au 
 Jupiter MOID = 2.60521 au 
 T_jup = 3.597 
[ 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 14.2   n/a MPO452237  
diameter diameter 4.018 km 0.118 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.330   0.052 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

5085 Hippocrene (1977 NN)          Discovered 1977-Jul-14 by Chernykh, N. S. at Nauchnyj
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 1977 NN = 1977 PX = 1984 SK5 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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