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46649 (1995 SN4)
Classification: Main-belt Asteroid          SPK-ID: 2046649
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 28 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1428087923093982 3.994e-08  
a 2.251882382688627 8.2476e-09 au
q 1.930293779194054 9.0324e-08 au
i 5.256378259475229 4.511e-06 deg
node 30.70820393461709 4.3385e-05 deg
peri 324.0212563229691 4.5803e-05 deg
M 356.5366941309256 1.6229e-05 deg
tp 2458612.374226529735
(2019-May-08.87422653)
5.5672e-05 TDB
period 1234.289350206046
3.38
6.781e-06
1.857e-08
d
yr
n .2916658074866348 1.6024e-09 deg/d
Q 2.5734709861832 9.4255e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1406  
   data-arc span      8805 days (24.11 yr)  
   first obs. used      1995-09-20  
   last obs. used      2019-10-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .49495  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-07 06:28:20  

Additional Information
 Earth MOID = .927957 au 
 Jupiter MOID = 2.8574 au 
 T_jup = 3.607 
[ 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 14.6   n/a MPO449296  
diameter diameter 3.626 km 0.319 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.233   0.041 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

46649 (1995 SN4)          Discovered 1995-Sep-20 by Endate, K., Watanabe, K. at Kitami
Reference: 20020921/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1995 SN4 = 1999 XE174 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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