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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 ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2049490613063135 5.4039e-08  
a 2.58741288875015 1.178e-08 au
q 2.057125045988951 1.3807e-07 au
i 10.87787375251724 5.2735e-06 deg
node 335.5729520144152 2.4045e-05 deg
peri 229.8309591270709 2.5554e-05 deg
M 272.2582230039131 1.0145e-05 deg
tp 2459371.010873269315
(2021-Jun-05.51087327)
4.3573e-05 TDB
period 1520.18706417243
4.16
1.0382e-05
2.842e-08
d
yr
n .2368129610390937 1.6173e-09 deg/d
Q 3.11770073151135 1.4194e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1138  
   data-arc span      21651 days (59.28 yr)  
   first obs. used      1960-10-22  
   last obs. used      2020-02-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52591  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 09:11:57  

Additional Information
 Earth MOID = 1.07345 au 
 Jupiter MOID = 1.93238 au 
 T_jup = 3.367 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456865.5 (2014-Jul-27.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2051477115357236 5.3997e-08  
q 2.056314006509749 1.3795e-07 au
tp 2456332.207056671654
(2013-Feb-08.70705667)
4.1999e-05 TDB
node 335.6098121413696 2.4025e-05 deg
peri 229.9239931066583 2.5541e-05 deg
i 10.88319614894794 5.2758e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1138  
   data-arc span      21651 days (59.28 yr)  
   first obs. used      1960-10-22  
   last obs. used      2020-02-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52591  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 09:11:57  

Additional Information
 Jupiter MOID = 1.93238 au 
 T_jup = 3.367 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.915687998738861E-15 -7.432563241504341E-15 -4.028860552364397E-13 1.1423003704848E-14 -1.110171447836317E-13 -1.624948230703127E-15
q -7.432563241504341E-15 1.903037038228497E-14 9.741964569367952E-13 -3.071552149348164E-14 2.788400261569168E-13 5.144254993183631E-15
tp -4.028860552364397E-13 9.741964569367952E-13 1.763910153066744E-9 8.309966288127969E-12 3.856619340733614E-10 4.46400493645686E-13
node 1.1423003704848E-14 -3.071552149348164E-14 8.309966288127969E-12 5.772068659846274E-10 -5.651737963466074E-10 4.692129820750392E-11
peri -1.110171447836317E-13 2.788400261569168E-13 3.856619340733614E-10 -5.651737963466074E-10 6.52343542023179E-10 -4.581804942332819E-11
i -1.624948230703127E-15 5.144254993183631E-15 4.46400493645686E-13 4.692129820750392E-11 -4.581804942332819E-11 2.783375799015227E-11

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 14.5   n/a MPO502480  
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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