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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.


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Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2052735306123461 5.7602e-08  
a 2.586856942793099 1.2159e-08 au
q 2.0558436849569 1.4653e-07 au
i 10.87837064314744 5.7566e-06 deg
node 335.5884821437362 2.4357e-05 deg
peri 229.82355691 2.6035e-05 deg
M 177.5320113045319 1.0137e-05 deg
tp 2457851.069752081783
(2017-Apr-07.56975208)
4.2298e-05 TDB
period 1519.697136691375
4.16
1.0715e-05
2.934e-08
d
yr
n .2368893059730163 1.6702e-09 deg/d
Q 3.117870200629298 1.4655e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1081  
   data-arc span      21592 days (59.12 yr)  
   first obs. used      1960-10-22  
   last obs. used      2019-12-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53166  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-14 04:13:49  

Additional Information
 Earth MOID = 1.07248 au 
 Jupiter MOID = 1.93344 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 14.4   n/a MPO417154  
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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