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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 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2114379910207076 6.9464e-08  
a 2.633527879035813 1.266e-08 au
q 2.076700034995456 1.8473e-07 au
i 10.77461648814415 4.9524e-06 deg
node 244.4754252510006 3.1079e-05 deg
peri 115.820205139758 3.6105e-05 deg
M 62.26478744752162 1.283e-05 deg
tp 2459126.511468716347
(2020-Oct-04.01146872)
5.6026e-05 TDB
period 1561.00864142569
4.27
1.1257e-05
3.082e-08
d
yr
n .2306201198676308 1.663e-09 deg/d
Q 3.190355723076171 1.5337e-08 au
  Orbit Determination Parameters
   # obs. used (total)      356  
   data-arc span      7684 days (21.04 yr)  
   first obs. used      1999-12-07  
   last obs. used      2020-12-20  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .51226  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-14 08:45:32  

Additional Information
 Earth MOID = 1.10035 au 
 Jupiter MOID = 2.40031 au 
 T_jup = 3.342 
[ hide covariance matrix ]
Orbital Elements at Epoch 2458203.5 (2018-Mar-26.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2131521636724769 6.9698e-08  
q 2.070919202149635 1.8576e-07 au
tp 2457566.744361384094
(2016-Jun-27.24436138)
5.9027e-05 TDB
node 244.5013466544941 3.1055e-05 deg
peri 115.9595097364755 3.601e-05 deg
i 10.78244082637517 4.9595e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      356  
   data-arc span      7684 days (21.04 yr)  
   first obs. used      1999-12-07  
   last obs. used      2020-12-20  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .51226  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-14 08:45:32  

Additional Information
 Jupiter MOID = 2.40031 au 
 T_jup = 3.342 
Orbit Covariance (6×6)
  e q tp node peri i
e 4.857811453864837E-15 -1.292890672516511E-14 2.114133494313179E-12 2.384235244528397E-15 7.459351720770581E-13 -4.748353915078061E-14
q -1.292890672516511E-14 3.450766269232537E-14 -5.822788841688573E-12 -6.543009860212512E-15 -2.029562033848845E-12 1.268045124038228E-13
tp 2.114133494313179E-12 -5.822788841688573E-12 3.484149438812256E-9 -1.067132809252728E-12 1.10391855157539E-9 -1.861458064914356E-11
node 2.384235244528397E-15 -6.543009860212512E-15 -1.067132809252728E-12 9.64413488293101E-10 -9.477287902431253E-10 -6.777685869571877E-11
peri 7.459351720770581E-13 -2.029562033848845E-12 1.10391855157539E-9 -9.477287902431253E-10 1.296685448780598E-9 6.001824965394814E-11
i -4.748353915078061E-14 1.268045124038228E-13 -1.861458064914356E-11 -6.777685869571877E-11 6.001824965394814E-11 2.45967110506241E-11

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 16.79   n/a E2021B25  

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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