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68134 (2001 AT18)
Classification: Mars-crossing Asteroid          SPK-ID: 2068134
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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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 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2848293177772011 5.3841e-08  
a 2.278882370031607 1.5162e-08 au
q 1.629789859281014 1.19e-07 au
i 26.59579894982438 1.3274e-05 deg
node 279.3657813460546 1.4771e-05 deg
peri 119.6789817700502 3.1777e-05 deg
M 189.5301828445318 2.8172e-05 deg
tp 2459195.512767004049
(2020-Dec-12.01276700)
0.0001027 TDB
period 1256.554384205758
3.44
1.254e-05
3.433e-08
d
yr
n .286497746953904 2.8593e-09 deg/d
Q 2.927974880782202 1.9481e-08 au
  Orbit Determination Parameters
   # obs. used (total)      565  
   data-arc span      11406 days (31.23 yr)  
   first obs. used      1987-01-31  
   last obs. used      2018-04-24  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .47077  
   source      ORB  
   producer      Otto Matic  
   solution date      2018-May-07 04:37:35  

Additional Information
 Earth MOID = .753408 au 
 Jupiter MOID = 2.67842 au 
 T_jup = 3.418 
[ 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 14.2   n/a MPO436258  
rotation period rot_per 7.105 h n/a LCDB (Rev. 2019-January); Warner et al., 2009 Published Reference List:
[Skiff, B.A. (2011) Posting on CALL web site. http://www.minorplanet.info/call.html]

68134 (2001 AT18)          Discovered 2001-Jan-04 by LONEOS at Anderson Mesa
Reference: 20030910/Numbers.arcLast Updated: 2004-04-19

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