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48686 (1996 EM1)
Classification: Main-belt Asteroid          SPK-ID: 2048686
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2048360718724475 4.9855e-08  
a 2.587359209453497 1.078e-08 au
q 2.057374712466042 1.286e-07 au
i 10.8784905577077 5.1353e-06 deg
node 335.5700286319037 2.2062e-05 deg
peri 229.8265743136836 2.3699e-05 deg
M 319.6156805985005 9.5872e-06 deg
tp 2459371.027248558453
(2021-Jun-05.52724856)
4.0683e-05 TDB
period 1520.13975698607
4.16
9.5001e-06
2.601e-08
d
yr
n .2368203307265379 1.48e-09 deg/d
Q 3.117343706440953 1.2988e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1296  
   data-arc span      22005 days (60.25 yr)  
   first obs. used      1960-10-22  
   last obs. used      2021-01-20  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52219  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 04:57:21  

Additional Information
 Earth MOID = 1.07297 au 
 Jupiter MOID = 1.93164 au 
 T_jup = 3.367 
[ 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 14.53   n/a E2021B10  
diameter diameter 3.434 km 0.566 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.313   0.078 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

48686 (1996 EM1)          Discovered 1996-Mar-10 by Endate, K., Watanabe, K. at Kitami
Reference: 20021120/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1996 EM1 = 1999 XM165 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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