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JPL Small-Body Database Browser
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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 ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1795238747548401 3.485e-08  
a 2.255947018519701 7.1475e-09 au
q 1.850950668513416 7.8093e-08 au
i 4.856125524008376 3.8468e-06 deg
node 317.0785188661632 4.2382e-05 deg
peri 354.6823678451721 4.3662e-05 deg
M 229.2247755300881 1.2392e-05 deg
tp 2459450.088034377628
(2021-Aug-23.58803438)
4.3699e-05 TDB
period 1237.632686405244
3.39
5.8818e-06
1.61e-08
d
yr
n .2908779025913051 1.3824e-09 deg/d
Q 2.660943368525987 8.4307e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1621  
   data-arc span      15516 days (42.48 yr)  
   first obs. used      1977-07-14  
   last obs. used      2020-01-06  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51605  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jan-28 19:50:46  

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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