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3512 Eriepa (1984 AC1)
Classification: Main-belt Asteroid          SPK-ID: 2003512
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


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Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 30 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2471238001087414 3.8855e-08  
a 2.250447642366578 8.2762e-09 au
q 1.694308469039192 8.8324e-08 au
i 7.492363679065226 3.4319e-06 deg
node 112.7866303133706 3.7653e-05 deg
peri 300.8343079437871 3.8418e-05 deg
M 210.0430116848146 1.0445e-05 deg
tp 2459114.148478173535
(2020-Sep-21.64847817)
3.7635e-05 TDB
period 1233.109935188977
3.38
6.8023e-06
1.862e-08
d
yr
n .2919447729085315 1.6105e-09 deg/d
Q 2.806586815693966 1.0321e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1597  
   data-arc span      14158 days (38.76 yr)  
   first obs. used      1979-08-14  
   last obs. used      2018-05-19  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .48146  
   source      ORB  
   producer      Otto Matic  
   solution date      2018-May-31 12:26:32  

Additional Information
 Earth MOID = .720199 au 
 Jupiter MOID = 2.57892 au 
 T_jup = 3.576 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 13.9   n/a MPO448948  
diameter diameter 4.880 km 0.889 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2017AJ....154..168M)  
rotation period rot_per 6.784 h n/a LCDB (Rev. 2019-January); Warner et al., 2009 Published Reference List:
[Ditteon, R.; Hirsch, B.; Kirkpatrick, E.; Kramb, S.; et al. (2004) Minor Planet Bull. 31, 54-56.]
[Skiff, B.A. (2011) Posting on CALL web site. http://www.minorplanet.info/call.html]
[Szabo, R.; Pal, A.; Sarneczky, K.; Szabo, Gy.M.; et al. (2016) Astron. Astrophys. 596, A40.]
geometric albedo albedo 0.136   0.085 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2017AJ....154..168M)  

3512 Eriepa (1984 AC1)          Discovered 1984-Jan-08 by Wagner, J. at Flagstaff (AM)
Discovered at the Anderson Mesa station, which is operated by the Lowell Observatory.
Reference: DISCOVERY.DBLast Updated: 2003-08-29
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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