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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 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 30 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1796219504220671 1.6562e-08  
a 2.255643719766186 6.3424e-09 au
q 1.850480595364497 3.7546e-08 au
i 4.856179511029872 3.4343e-07 deg
node 317.0791011597354 3.1391e-06 deg
peri 354.7216052699842 6.1061e-06 deg
M 287.3707516065336 4.8929e-06 deg
tp 2459450.139458269638
(2021-Aug-23.63945827)
1.7591e-05 TDB
period 1237.383106186108
3.39
5.2189e-06
1.429e-08
d
yr
n .2909365726752168 1.2271e-09 deg/d
Q 2.660806844167875 7.4816e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1941  
   data-arc span      15652 days (42.85 yr)  
   first obs. used      1977-07-14  
   last obs. used      2020-05-21  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .50259  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-12 17:07:39  

Additional Information
 Earth MOID = .834349 au 
 Jupiter MOID = 2.60512 au 
 T_jup = 3.598 
[ 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 14.21   n/a E2021B10  
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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