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118045 (3258 T-2)
Classification: Outer Main-belt Asteroid          SPK-ID: 2118045
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 28 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1209177545584444 4.4948e-08  
a 3.208515767049297 2.6374e-08 au
q 2.820549245032331 1.5086e-07 au
i 17.35238807394548 5.4077e-06 deg
node 13.53006499764894 1.3919e-05 deg
peri 148.1480708469488 2.5485e-05 deg
M 279.7818269594301 2.2313e-05 deg
tp 2459668.262023516047
(2022-Mar-29.76202352)
0.00013302 TDB
period 2099.20423369169
5.75
2.5884e-05
7.087e-08
d
yr
n .1714935565687665 2.1145e-09 deg/d
Q 3.596482289066262 2.9564e-08 au
  Orbit Determination Parameters
   # obs. used (total)      882  
   data-arc span      17288 days (47.33 yr)  
   first obs. used      1973-09-19  
   last obs. used      2021-01-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53929  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 09:18:44  

Additional Information
 Earth MOID = 1.83993 au 
 Jupiter MOID = 1.40008 au 
 T_jup = 3.110 
[ 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 14.0   n/a MPO366554  
diameter diameter 8.917 km 0.155 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.074   0.016 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

118045 (3258 T-2)          Discovered 1973-Sep-30 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
 3258 T-2 = 1999 CU52 = 2002 SJ7 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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