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JPL Small-Body Database Browser
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312942 (1995 EK1)
Classification: Apollo [NEO]          SPK-ID: 2312942
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 69 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .7768755698671412 3.7354e-08  
a 2.263359234490375 6.7621e-09 au
q .5050107393816083 8.504e-08 au
i 9.066953427812162 8.6841e-06 deg
node 352.6741668380179 1.7504e-05 deg
peri 299.7576992709309 1.9642e-05 deg
M 5.172305520336763 8.2322e-06 deg
tp 2458582.630585187426
(2019-Apr-09.13058519)
2.8374e-05 TDB
period 1243.737305778438
3.41
5.5737e-06
1.526e-08
d
yr
n .289450190428019 1.2972e-09 deg/d
Q 4.021707729599141 1.2015e-08 au
  Orbit Determination Parameters
   # obs. used (total)      593  
   data-arc span      7327 days (20.06 yr)  
   first obs. used      1995-03-02  
   last obs. used      2015-03-24  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .49483  
   source      ORB  
   producer      Otto Matic  
   solution date      2017-Apr-06 09:23:51  

Additional Information
 Earth MOID = .0589145 au 
 Jupiter MOID = 1.35848 au 
 T_jup = 3.119 
[ 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 17.3   n/a MPO326436  
rotation period rot_per 8.444 h n/a LCDB (Rev. 2019-January); Warner et al., 2009 Published Reference List:
[Erikson, A.; Mottola, S.; Lagerros, J.S.V.; Lindgren, M.; et al. (2000) Icarus 147, 487-497.]

312942 (1995 EK1)          Discovered 1995-Mar-07 by Kobayashi, T. at Oizumi
Reference: 20120207/Numbers.arcLast Updated: 2012-02-09

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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