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46378 (2001 XD17)
Classification: Main-belt Asteroid          SPK-ID: 2046378
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 28 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09958538986897339 3.162e-08  
a 2.244647314044264 8.872e-09 au
q 2.021113236156822 7.0654e-08 au
i 5.644680637004884 3.8028e-06 deg
node 45.06892648062365 3.9738e-05 deg
peri 201.0630249502337 4.5181e-05 deg
M 77.54607136339783 2.1835e-05 deg
tp 2458935.907276798218
(2020-Mar-27.40727680)
7.4389e-05 TDB
period 1228.345661848728
3.36
7.2826e-06
1.994e-08
d
yr
n .2930771127226356 1.7376e-09 deg/d
Q 2.468181391931705 9.7555e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1499  
   data-arc span      8454 days (23.15 yr)  
   first obs. used      1997-10-30  
   last obs. used      2020-12-22  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .53057  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 09:48:34  

Additional Information
 Earth MOID = 1.00755 au 
 Jupiter MOID = 2.53769 au 
 T_jup = 3.619 
[ 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 14.90   n/a MPCxxxxx  
diameter diameter 3.294 km 0.103 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 5.749 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Erasmus, N.; Navarro-Meza, S.; McNeill, A.; Trilling, D.E.; et al. (2020) Ap. J. Suppl. Ser. 247, A13.]
geometric albedo albedo 0.215   0.053 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

46378 (2001 XD17)          Discovered 2001-Dec-09 by LINEAR at Socorro
Reference: 20020822/Numbers.arcLast Updated: 2004-04-19
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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