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347991 (2003 SR144)
Classification: Main-belt Asteroid          SPK-ID: 2347991
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2116141198622535 8.2305e-08  
a 2.633923906615931 2.4865e-08 au
q 2.076548417333252 2.1005e-07 au
i 10.77530453430783 1.2662e-05 deg
node 244.4816010567817 3.1949e-05 deg
peri 115.7402195169159 4.7306e-05 deg
M 330.9935465790302 3.6251e-05 deg
tp 2459126.304273411168
(2020-Oct-03.80427341)
0.00015858 TDB
period 1561.36076929967
4.27
2.211e-05
6.053e-08
d
yr
n .2305681089716848 3.265e-09 deg/d
Q 3.191299395898609 3.0127e-08 au
  Orbit Determination Parameters
   # obs. used (total)      139  
   data-arc span      7109 days (19.46 yr)  
   first obs. used      1999-12-07  
   last obs. used      2019-05-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54259  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-25 23:31:18  

Additional Information
 Earth MOID = 1.101 au 
 Jupiter MOID = 2.39784 au 
 T_jup = 3.342 
[ 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 16.6   n/a MPO434193  

347991 (2003 SR144)          Discovered 2003-Sep-19 by NEAT at Palomar
Reference: 20121228/Numbers.arcLast Updated: 2013-01-02

[ show close-approach data ]
Alternate Designations
 2003 SR144 = 1999 XT240 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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