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4847 Amenhotep (6787 P-L)
Classification: Main-belt Asteroid          SPK-ID: 2004847
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 2459000.5 (2020-May-31.0) TDB
Reference: JPL 30 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08869959178355263 2.929e-08  
a 2.166864322641998 6.5135e-09 au
q 1.974664341773309 6.2159e-08 au
i .8568022007876004 4.0211e-06 deg
node 125.4739898258525 0.00021882 deg
peri 103.1834653742559 0.00022014 deg
M 21.72218567350848 2.4954e-05 deg
tp 2458930.201343337682
(2020-Mar-21.70134334)
8.0678e-05 TDB
period 1165.053866071054
3.19
5.2532e-06
1.438e-08
d
yr
n .3089985883777535 1.3933e-09 deg/d
Q 2.359064303510688 7.0912e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1741  
   data-arc span      21816 days (59.73 yr)  
   first obs. used      1960-09-24  
   last obs. used      2020-06-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .4813  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jun-23 16:14:09  

Additional Information
 Earth MOID = .964596 au 
 Jupiter MOID = 2.61751 au 
 T_jup = 3.687 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456309.5 (2013-Jan-17.0) TDB
Reference: JPL 30 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08849840257621584 2.9265e-08  
q 1.97480489772519 6.2038e-08 au
tp 2456600.337563984098
(2013-Nov-03.83756398)
7.8801e-05 TDB
node 125.4523997457645 0.00021894 deg
peri 103.2117906643345 0.00022027 deg
i .8563919712259968 4.0213e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1741  
   data-arc span      21816 days (59.73 yr)  
   first obs. used      1960-09-24  
   last obs. used      2020-06-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .4813  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jun-23 16:14:09  

Additional Information
 Jupiter MOID = 2.61751 au 
 T_jup = 3.687 
Orbit Covariance (6×6)
  e q tp node peri i
e 8.564322015066427E-16 -1.807616699683893E-15 4.875112947198917E-15 2.578117863381265E-16 -1.091289310684809E-14 -8.754875420313805E-17
q -1.807616699683893E-15 3.848736459043989E-15 5.181785512143248E-14 -8.979108298221567E-16 3.88825167629801E-14 1.915966592287103E-16
tp 4.875112947198917E-15 5.181785512143248E-14 6.209601564324064E-9 6.253171987870882E-12 1.910581493320516E-9 1.185240652744515E-13
node 2.578117863381265E-16 -8.979108298221567E-16 6.253171987870882E-12 4.793545587401565E-8 -4.792761531397526E-8 1.249917244167212E-10
peri -1.091289310684809E-14 3.88825167629801E-14 1.910581493320516E-9 -4.792761531397526E-8 4.851881242321102E-8 -1.249388307899243E-10
i -8.754875420313805E-17 1.915966592287103E-16 1.185240652744515E-13 1.249917244167212E-10 -1.249388307899243E-10 1.617055032063335E-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 14.7   n/a MPO302093  
diameter diameter 3.143 km 0.039 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.232   0.041 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

4847 Amenhotep (6787 P-L)          Discovered 1960-Sep-24 by van Houten and Gehrels at Palomar
Reference: DISCOVERY.DBLast Updated: 2003-08-29

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Alternate Designations
 6787 P-L = 1975 EM5 = 1981 AZ = 1981 CD1 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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