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JPL Small-Body Database Browser
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154590 (2003 MA3)
Classification: Apollo [NEO, PHA]          SPK-ID: 2154590
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 2457209.5 (2015-Jul-06.0) TDB
Reference: JPL 38 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .4022047894439031 6.4132e-08  
a 1.105347040405682 4.399e-09 au
q .660771166756873 7.0957e-08 au
i 1.412937837587411 4.0267e-06 deg
node 152.6498556533086 0.00027892 deg
peri 228.9122390452903 0.0002779 deg
M 60.61390673040963 8.0668e-06 deg
tp 2457138.031250773164
(2015-Apr-25.53125077)
9.4411e-06 TDB
period 424.4694181500926
1.16
2.5339e-06
6.937e-09
d
yr
n .8481176372350666 5.063e-09 deg/d
Q 1.549922914054491 6.1683e-09 au

Additional Model Parameters
 Parameter Value Uncertainty (1-sigma) 
A2 [EST] -7.25259705838562E-14 1.583E-14
ALN [SET] 1. n/a
NK [SET] 0. n/a
NM [SET] 2. n/a
R0 [SET] 1. n/a
  Orbit Determination Parameters
   # obs. used (total)      115  
   data-arc span      7418 days (20.31 yr)  
   first obs. used      1998-01-29  
   last obs. used      2018-05-22  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .461  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jan-14 15:30:19  

Additional Information
 Earth MOID = .0131168 au 
 Jupiter MOID = 3.90538 au 
 T_jup = 5.551 
 Nongravitational accels. using nonstandard g(r) = (1 au/ r)^2 
[ 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 21.7   n/a MPO224075  
diameter diameter 0.086 km 0.002 urn:nasa:pds:neowise_diameters_albedos::2.0[neos] (http://adsabs.harvard.edu/abs/2014ApJ...784..110M)  
geometric albedo albedo 0.530   0.076 urn:nasa:pds:neowise_diameters_albedos::2.0[neos] (http://adsabs.harvard.edu/abs/2014ApJ...784..110M)  

154590 (2003 MA3)          Discovered 2003-Jun-26 by NEAT at Haleakala
Reference: 20070402/Numbers.arcLast Updated: 2007-04-04

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