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18275 (3173 T-3)
Classification: Main-belt Asteroid          SPK-ID: 2018275
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 2459000.5 (2020-May-31.0) TDB
Reference: JPL 26 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .022821113482363 4.4737e-08  
a 2.777147490261367 1.6434e-08 au
q 2.713769892228853 1.2503e-07 au
i 8.396642394504687 4.9933e-06 deg
node 205.1729919556061 2.7039e-05 deg
peri 206.107800915512 9.9113e-05 deg
M 47.7439660578838 9.3884e-05 deg
tp 2458776.311755387021
(2019-Oct-19.81175539)
0.00044095 TDB
period 1690.428649409308
4.63
1.5004e-05
4.108e-08
d
yr
n .2129637356334418 1.8903e-09 deg/d
Q 2.840525088293881 1.6809e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1143  
   data-arc span      15697 days (42.98 yr)  
   first obs. used      1977-10-12  
   last obs. used      2020-10-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53017  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 02:15:58  

Additional Information
 Earth MOID = 1.72361 au 
 Jupiter MOID = 2.23643 au 
 T_jup = 3.319 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457052.5 (2015-Jan-30.0) TDB
Reference: JPL 26 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .02094367206532319 4.494e-08  
q 2.718028402365586 1.2519e-07 au
tp 2457067.768191459273
(2015-Feb-14.26819146)
0.00047885 TDB
node 205.2189725499923 2.7071e-05 deg
peri 202.2145497732195 0.00010665 deg
i 8.390383857036902 4.9912e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1143  
   data-arc span      15697 days (42.98 yr)  
   first obs. used      1977-10-12  
   last obs. used      2020-10-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53017  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 02:15:58  

Additional Information
 Jupiter MOID = 2.23643 au 
 T_jup = 3.319 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.019646606455091E-15 -5.5794908181793E-15 -3.951611557393359E-12 3.876881724991893E-15 -8.768603433848436E-13 -1.128585259386603E-15
q -5.5794908181793E-15 1.567186816345452E-14 1.034984328084429E-11 -9.432563917319723E-15 2.296025558581018E-12 3.934128568118234E-15
tp -3.951611557393359E-12 1.034984328084429E-11 2.293007323956742E-7 -9.642760513250408E-12 4.941292389188279E-8 -1.781091216402836E-11
node 3.876881724991893E-15 -9.432563917319723E-15 -9.642760513250408E-12 7.328215701262405E-10 -7.266755731360424E-10 9.329052199654619E-12
peri -8.768603433848436E-13 2.296025558581018E-12 4.941292389188279E-8 -7.266755731360424E-10 1.137483294428804E-8 -1.304290141336888E-11
i -1.128585259386603E-15 3.934128568118234E-15 -1.781091216402836E-11 9.329052199654619E-12 -1.304290141336888E-11 2.49123741425547E-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 14.5   n/a MPO412321  

18275 (3173 T-3)          Discovered 1977-Oct-16 by van Houten, C. J., van Houten-Groeneveld, I., Gehrels, T. at Palomar
Reference: 20001013/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 3173 T-3 = 1998 FP97 = 1999 NE45 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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