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JPL Small-Body Database Browser
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20136 Eisenhart (1996 NA)
Classification: Inner Main-belt Asteroid          SPK-ID: 2020136
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 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06436852996298631 4.8813e-08  
a 1.930496853550029 7.1598e-09 au
q 1.806233608988843 9.4936e-08 au
i 24.26123611309799 4.9208e-06 deg
node 103.776641604513 1.3029e-05 deg
peri 159.0079379827031 4.4946e-05 deg
M 332.3843495359285 4.5907e-05 deg
tp 2459075.654475878788
(2020-Aug-14.15447588)
0.00012511 TDB
period 979.7202260929429
2.68
5.4504e-06
1.492e-08
d
yr
n .3674518402418365 2.0442e-09 deg/d
Q 2.054760098111215 7.6207e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1033  
   data-arc span      8612 days (23.58 yr)  
   first obs. used      1996-07-08  
   last obs. used      2020-02-05  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .49348  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-22 23:01:35  

Additional Information
 Earth MOID = .795476 au 
 Jupiter MOID = 3.08777 au 
 T_jup = 3.804 
[ 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 14.9   n/a MPO400203  
rotation period rot_per 6.508 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Published Reference List:
[Pravec, P.; Wolf, M.; Sarounova, L. (2012) http://www.asu.cas.cz/~ppravec/neo.htm]
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]

20136 Eisenhart           Discovered 1996 July 8 by P. G. Comba at Prescott.
Luther Pfahler Eisenhart (1876-1965) was a prolific American mathematician and professor at Princeton who made important contributions in Riemannian and non-Riemannian geometry.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20010309/MPCPages.arcLast Updated: 2009-05-11

[ hide close-approach data ]
Close-Approach Data   ...sorted by Date/Time (TDB)
Date/Time (TDB) Time Uncertainty
(days_HH:MM)
Body Nominal Distance (au) Minimum Distance (au) Maximum Distance (au) V-relative (km/s) V-infinity (km/s) JD (TDB) Time Uncertainty (minutes) Semi-major axis (km) Semi-minor axis (km) range-LOV angle (deg) N-sigma BP Orbit Ref. Reference Modified
1992-May-01 03:44 < 00:01 Hebe 0.0279371427757633 0.0279355614079455 0.0279387242094273 6.39683324747351 6.39683321268703 2448743.655268443 0.311871310264973 109.097232429647 34.8998802349358 46.8481971337495 91183.7248663114 T 22 CATAB v2.0f-lin.ifort 2020-Feb-22 23:01:47 2020-Feb-22 23:01
2177-Jun-07 10:50 00:01 Hebe 0.028396491112076 0.0283775651563347 0.0284154184509889 6.37442160734087 6.37442157299677 2516350.951414250 1.4271298968659 994.032379710705 34.5675841563933 18.3456879947174 38879.7995028391 T 22 CATAB v2.0f-lin.ifort 2020-Feb-22 23:01:47 2020-Feb-22 23:01
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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