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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.


Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 41 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2471199320548751 1.3569e-08  
a 2.249190648933562 4.778e-09 au
q 1.69337080859064 3.0702e-08 au
i 7.496736384551921 8.2518e-07 deg
node 112.7741276735529 9.0978e-06 deg
peri 301.0555778158874 9.7352e-06 deg
M 25.06628368747444 4.5827e-06 deg
tp 2459114.712249415999
(2020-Sep-22.21224942)
1.5584e-05 TDB
period 1232.076944284835
3.37
3.926e-06
1.075e-08
d
yr
n .2921895435751082 9.3105e-10 deg/d
Q 2.805010489276485 5.9587e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2213  
   data-arc span      15194 days (41.60 yr)  
   first obs. used      1979-08-14  
   last obs. used      2021-03-20  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .43584  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-03 21:02:06  

Additional Information
 Earth MOID = .718932 au 
 Jupiter MOID = 2.58108 au 
 T_jup = 3.577 
[ 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 13.93   n/a MPCxxxxx  
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. 2020-October); 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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