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48663 (1995 WY7)
Classification: Main-belt Asteroid          SPK-ID: 2048663
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2607313419282838 3.8826e-08  
a 2.299940668479802 8.4099e-09 au
q 1.700274051631629 9.1393e-08 au
i 4.436142885706373 4.9861e-06 deg
node 347.2453437415717 4.9977e-05 deg
peri 27.57891974754618 5.0989e-05 deg
M 292.735431665299 1.007e-05 deg
tp 2458838.543997387184
(2019-Dec-21.04399739)
3.5846e-05 TDB
period 1274.011581148835
3.49
6.9878e-06
1.913e-08
d
yr
n .2825719996009544 1.5499e-09 deg/d
Q 2.899607285327974 1.0603e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1079  
   data-arc span      8738 days (23.92 yr)  
   first obs. used      1995-11-29  
   last obs. used      2019-11-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .48765  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-07 06:38:04  

Additional Information
 Earth MOID = .701704 au 
 Jupiter MOID = 2.57042 au 
 T_jup = 3.542 
[ 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 15.2   n/a MPO449312  
diameter diameter 2.302 km 0.639 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 6.23 h n/a LCDB (Rev. 2019-January); 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:
[Chang, C.K.; Ip, W.-H.; Lin, H.-W.; Cheng, Y.C.; et al. (2015) Astrophys. J. Supp. Ser. 219, A27.]
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]
geometric albedo albedo 0.304   0.234 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

48663 (1995 WY7)          Discovered 1995-Nov-29 by Kobayashi, T. at Oizumi
Reference: 20021120/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1995 WY7 = 1998 MV33 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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