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451397 (2011 EZ78)
Classification: Amor [NEO]          SPK-ID: 2451397
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.


Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 99 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .5425787076091543 1.695e-08  
a 2.394876596298358 7.7349e-08 au
q 1.095467547795385 1.6799e-08 au
i 17.9219238709992 6.3063e-06 deg
node 109.8652517229171 8.5711e-06 deg
peri 179.7509509144848 1.853e-05 deg
M 248.1749135710168 5.0457e-05 deg
tp 2459816.994072826535
(2022-Aug-25.49407283)
0.00021009 TDB
period 1353.70220629061
3.71
6.5582e-05
1.796e-07
d
yr
n .2659373666727378 1.2884e-08 deg/d
Q 3.694285644801332 1.1932e-07 au
  Orbit Determination Parameters
   # obs. used (total)      589  
   # delay obs. used      1  
   # Doppler obs. used      0  
   data-arc span      3597 days (9.85 yr)  
   first obs. used      2011-03-15  
   last obs. used      2021-01-18  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .3032  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-14 15:15:42  

Additional Information
 Earth MOID = .0788248 au 
 Jupiter MOID = 1.52415 au 
 T_jup = 3.257 
[ 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 17.14   n/a MPCxxxxx  
rotation period rot_per 3.1150 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Published Reference List:
[Pravec, P.; Wolf, M.; Sarounova, L. (2011) http://www.asu.cas.cz/~ppravec/neo.htm]
[Skiff, B.A. (2011) Posting on CALL web site. http://www.minorplanet.info/call.html]

451397 (2011 EZ78)          Discovered 2011-Mar-15 by Mt. Lemmon Survey at Mount Lemmon
Reference: Last Updated: 2015-11-30

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Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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