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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 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2052735310312238 6.1412e-08  
a 2.586856943058851 1.2651e-08 au
q 2.055843684084523 1.5558e-07 au
i 10.87837284797895 6.1488e-06 deg
node 335.5884851438038 2.454e-05 deg
peri 229.8235537069243 2.6432e-05 deg
M 177.5320114442831 1.0284e-05 deg
tp 2457851.069751376355
(2017-Apr-07.56975138)
4.3212e-05 TDB
period 1519.697136925556
4.16
1.1148e-05
3.052e-08
d
yr
n .2368893059365124 1.7377e-09 deg/d
Q 3.117870202033178 1.5248e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1053  
   data-arc span      21586 days (59.10 yr)  
   first obs. used      1960-10-22  
   last obs. used      2019-11-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53418  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-04 03:36:56  

Additional Information
 Earth MOID = 1.07248 au 
 Jupiter MOID = 1.93344 au 
 T_jup = 3.367 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456622.5 (2013-Nov-26.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2050084881739591 6.1327e-08  
q 2.056863529216771 1.5532e-07 au
tp 2456332.197811739636
(2013-Feb-08.69781174)
4.5245e-05 TDB
node 335.6113412960909 2.4521e-05 deg
peri 229.9462349586124 2.6439e-05 deg
i 10.88210738366338 6.1499e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1053  
   data-arc span      21586 days (59.10 yr)  
   first obs. used      1960-10-22  
   last obs. used      2019-11-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53418  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-04 03:36:56  

Additional Information
 Jupiter MOID = 1.93344 au 
 T_jup = 3.367 
Orbit Covariance (6×6)
  e q tp node peri i
e 3.760969978593969E-15 -9.507513046216252E-15 -8.83914034890744E-13 3.045847267219524E-15 -2.448588464358977E-13 -7.426211937665701E-15
q -9.507513046216252E-15 2.412395867581794E-14 2.156155493998975E-12 -9.324722183947515E-15 6.068931170033162E-13 1.990719360048729E-14
tp -8.83914034890744E-13 2.156155493998975E-12 2.047123651064762E-9 9.208567786707902E-12 4.673921289336052E-10 1.145797246282224E-12
node 3.045847267219524E-15 -9.324722183947515E-15 9.208567786707902E-12 6.012778786644825E-10 -5.88410325571291E-10 6.221545376525841E-11
peri -2.448588464358977E-13 6.068931170033162E-13 4.673921289336052E-10 -5.88410325571291E-10 6.989989703722655E-10 -6.053209115810395E-11
i -7.426211937665701E-15 1.990719360048729E-14 1.145797246282224E-12 6.221545376525841E-11 -6.053209115810395E-11 3.782110178823384E-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 14.4   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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