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118108 (2398 T-3)
Classification: Mars-crossing Asteroid          SPK-ID: 2118108
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 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3143133610929592 4.1606e-08  
a 2.421269572577913 1.0953e-08 au
q 1.660232195108837 9.8694e-08 au
i 4.840364491447064 4.8983e-06 deg
node 352.3630186233923 5.7998e-05 deg
peri 60.83969651861989 5.8706e-05 deg
M 90.50748620719186 9.2886e-06 deg
tp 2458654.524659441330
(2019-Jun-20.02465944)
3.4283e-05 TDB
period 1376.141663198954
3.77
9.3381e-06
2.557e-08
d
yr
n .261600974396161 1.7752e-09 deg/d
Q 3.18230695004699 1.4396e-08 au
  Orbit Determination Parameters
   # obs. used (total)      648  
   data-arc span      15455 days (42.31 yr)  
   first obs. used      1977-10-12  
   last obs. used      2020-02-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57394  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-24 05:54:07  

Additional Information
 Earth MOID = .677767 au 
 Jupiter MOID = 2.23277 au 
 T_jup = 3.440 
[ 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 15.9   n/a MPO453651  
diameter diameter 1.742 km 0.337 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2016AJ....152...63N)  
geometric albedo albedo 0.254   0.113 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2016AJ....152...63N)  

118108 (2398 T-3)          Discovered 1977-Oct-16 by van Houten, C. J., van Houten-Groeneveld, I., Gehrels, T. at Palomar
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

[ show close-approach data ]
Alternate Designations
 2398 T-3 = 2000 WV55 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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