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46756 (1998 FP55)
Classification: Main-belt Asteroid          SPK-ID: 2046756
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 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1331815484058215 4.0992e-08  
a 2.396746570682409 8.8949e-09 au
q 2.077544151262583 1.0143e-07 au
i 2.330883919271569 3.3137e-06 deg
node 83.39656889726243 0.00010653 deg
peri 121.3130044868499 0.0001074 deg
M 336.0376920262127 1.516e-05 deg
tp 2459090.710635791421
(2020-Aug-29.21063579)
5.7254e-05 TDB
period 1355.28801818412
3.71
7.5447e-06
2.066e-08
d
yr
n .2656261954431984 1.4787e-09 deg/d
Q 2.715948990102235 1.008e-08 au
  Orbit Determination Parameters
   # obs. used (total)      904  
   data-arc span      9603 days (26.29 yr)  
   first obs. used      1994-01-12  
   last obs. used      2020-04-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56998  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 09:35:02  

Additional Information
 Earth MOID = 1.07465 au 
 Jupiter MOID = 2.24247 au 
 T_jup = 3.515 
[ 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 15.7   n/a MPO266175  
diameter diameter 2.220 km 0.600 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.172   0.044 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

46756 (1998 FP55)          Discovered 1998-Mar-20 by LINEAR at Socorro
Reference: 20020921/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1998 FP55 = 2000 WU1 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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