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46481 (1198 T-2)
Classification: Main-belt Asteroid          SPK-ID: 2046481
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05742184164168707 4.2739e-08  
a 2.651408918962734 1.3747e-08 au
q 2.499160135890699 1.1495e-07 au
i 1.050234477042305 3.5486e-06 deg
node 302.924129367781 0.00025066 deg
peri 86.69805818289744 0.000253 deg
M 272.6111574658755 3.6915e-05 deg
tp 2459383.295639971312
(2021-Jun-17.79563997)
0.00016328 TDB
period 1576.933924211895
4.32
1.2264e-05
3.358e-08
d
yr
n .228291112565111 1.7754e-09 deg/d
Q 2.803657702034769 1.4536e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1116  
   data-arc span      16724 days (45.79 yr)  
   first obs. used      1973-09-19  
   last obs. used      2019-07-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56387  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 08:28:54  

Additional Information
 Earth MOID = 1.50407 au 
 Jupiter MOID = 2.44426 au 
 T_jup = 3.388 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.0   n/a MPO436107  
diameter diameter 3.328 km 0.523 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.145   0.048 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

46481 (1198 T-2)          Discovered 1973-Sep-29 by van Houten, C. J., van Houten-Groeneveld, I., Gehrels, T. at Palomar
Reference: 20020822/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1198 T-2 = 1999 TW5 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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