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46995 (1998 TO28)
Classification: Main-belt Asteroid          SPK-ID: 2046995
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 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2430226845930018 5.0833e-08  
a 2.554047768363923 1.0354e-08 au
q 1.933356223117357 1.3286e-07 au
i 10.3488976854769 4.7787e-06 deg
node 27.90791172937601 2.4273e-05 deg
peri 277.936288349251 2.6281e-05 deg
M 167.459529076656 8.7142e-06 deg
tp 2458306.995449490101
(2018-Jul-07.49544949)
3.6696e-05 TDB
period 1490.877464902453
4.08
9.0663e-06
2.482e-08
d
yr
n .2414685368012819 1.4684e-09 deg/d
Q 3.174739313610489 1.2871e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1683  
   data-arc span      9748 days (26.69 yr)  
   first obs. used      1993-04-26  
   last obs. used      2020-01-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .4757  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jan-29 07:14:28  

Additional Information
 Earth MOID = .951907 au 
 Jupiter MOID = 2.20488 au 
 T_jup = 3.374 
[ 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 14.7   n/a MPO309517  
diameter diameter 2.954 km 0.108 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.243   0.023 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

46995 (1998 TO28)          Discovered 1998-Oct-15 by Spacewatch at Kitt Peak
Reference: 20020921/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1998 TO28 = 2001 FT71 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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