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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 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2049490555320679 5.2377e-08  
a 2.587412888010385 1.1493e-08 au
q 2.057125060341156 1.3422e-07 au
i 10.87787367667759 5.206e-06 deg
node 335.572953031669 2.3567e-05 deg
peri 229.8309587166181 2.5107e-05 deg
M 272.2582227924473 1.0034e-05 deg
tp 2459371.010874003382
(2021-Jun-05.51087400)
4.3033e-05 TDB
period 1520.187063520477
4.16
1.0129e-05
2.773e-08
d
yr
n .2368129611406543 1.5778e-09 deg/d
Q 3.117700715679613 1.3848e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1185  
   data-arc span      21940 days (60.07 yr)  
   first obs. used      1960-10-22  
   last obs. used      2020-11-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52053  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Dec-17 21:26:45  

Additional Information
 Earth MOID = 1.07345 au 
 Jupiter MOID = 1.93238 au 
 T_jup = 3.367 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456963.5 (2014-Nov-02.0) TDB
Reference: JPL 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2052369918897928 5.2341e-08  
q 2.055922949592565 1.3411e-07 au
tp 2456332.245562065004
(2013-Feb-08.74556206)
4.1866e-05 TDB
node 335.6103630221004 2.3548e-05 deg
peri 229.9137039905482 2.5092e-05 deg
i 10.88348995844173 5.2086e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1185  
   data-arc span      21940 days (60.07 yr)  
   first obs. used      1960-10-22  
   last obs. used      2020-11-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52053  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Dec-17 21:26:45  

Additional Information
 Jupiter MOID = 1.93238 au 
 T_jup = 3.367 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.739543883899364E-15 -7.003332521994399E-15 -4.228857761325333E-13 7.925178108566825E-15 -1.077975224677121E-13 -2.201940961706444E-15
q -7.003332521994399E-15 1.798417303909143E-14 1.022057206337328E-12 -2.196123355669413E-14 2.705549775678049E-13 6.582435978194287E-15
tp -4.228857761325333E-13 1.022057206337328E-12 1.752768745471024E-9 8.783250193560016E-12 3.831151259161192E-10 5.016577003894932E-13
node 7.925178108566825E-15 -2.196123355669413E-14 8.783250193560016E-12 5.544848247717578E-10 -5.426904421536168E-10 4.314476074249475E-11
peri -1.077975224677121E-13 2.705549775678049E-13 3.831151259161192E-10 -5.426904421536168E-10 6.296185679319153E-10 -4.208693751216699E-11
i -2.201940961706444E-15 6.582435978194287E-15 5.016577003894932E-13 4.314476074249475E-11 -4.208693751216699E-11 2.712903193944966E-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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