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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 ]

[ show orbit diagram ]
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 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457094.5 (2015-Mar-13.0) TDB
Reference: JPL 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2132530553158733 8.3349e-08  
q 2.070730110556339 2.1372e-07 au
tp 2457567.286417133204
(2016-Jun-27.78641713)
0.00014216 TDB
node 244.5091275443826 3.1929e-05 deg
peri 116.1295551690806 4.7095e-05 deg
i 10.78245547153955 1.2672e-05 deg
  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
 Jupiter MOID = 2.39784 au 
 T_jup = 3.342 
Orbit Covariance (6×6)
  e q tp node peri i
e 6.947081035213738E-15 -1.775451546733707E-14 7.90534389632691E-12 -2.363626035759132E-14 2.076752247739139E-12 -1.161806739246057E-14
q -1.775451546733707E-14 4.567492679283322E-14 -1.908402581275799E-11 5.600241112084106E-14 -5.082281028246365E-12 3.215011196018368E-14
tp 7.90534389632691E-12 -1.908402581275799E-11 2.020982653857801E-8 -5.432782765731571E-11 4.914003054815195E-9 -8.572010595576971E-12
node -2.363626035759132E-14 5.600241112084106E-14 -5.432782765731571E-11 1.01947072138193E-9 -1.01399121656014E-9 -5.798548867303505E-11
peri 2.076752247739139E-12 -5.082281028246365E-12 4.914003054815195E-9 -1.01399121656014E-9 2.217896680857355E-9 5.468800671059418E-11
i -1.161806739246057E-14 3.215011196018368E-14 -8.572010595576971E-12 -5.798548867303505E-11 5.468800671059418E-11 1.605834492706536E-10

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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