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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.


Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 34 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .0892670597297868 2.9168e-08  
a 2.166309945405073 5.8768e-09 au
q 1.972929826115368 6.1746e-08 au
i .8572342434342187 3.804e-06 deg
node 125.4803732596321 0.00020303 deg
peri 102.9177667759011 0.00020419 deg
M 144.3050312766069 2.149e-05 deg
tp 2458929.670502780598
(2020-Mar-21.17050278)
6.9386e-05 TDB
period 1164.606788219646
3.19
4.7391e-06
1.297e-08
d
yr
n .3091172090369987 1.2579e-09 deg/d
Q 2.359690064694779 6.4014e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1851  
   data-arc span      21988 days (60.20 yr)  
   first obs. used      1960-09-24  
   last obs. used      2020-12-06  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .47279  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-12 16:50:59  

Additional Information
 Earth MOID = .96336 au 
 Jupiter MOID = 2.6144 au 
 T_jup = 3.687 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456572.5 (2013-Oct-07.0) TDB
Reference: JPL 34 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08862291433485413 2.9166e-08  
q 1.974590199487143 6.1723e-08 au
tp 2456600.405231675646
(2013-Nov-03.90523168)
7.0034e-05 TDB
node 125.4525284781433 0.00020318 deg
peri 103.2444367033692 0.00020435 deg
i .8564158363185649 3.8043e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1851  
   data-arc span      21988 days (60.20 yr)  
   first obs. used      1960-09-24  
   last obs. used      2020-12-06  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .47279  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-12 16:50:59  

Additional Information
 Jupiter MOID = 2.6144 au 
 T_jup = 3.687 
Orbit Covariance (6×6)
  e q tp node peri i
e 8.506712191280809E-16 -1.794154496953985E-15 6.005262802421092E-14 -2.498662363812309E-16 6.050096458985888E-15 -9.633827596381797E-17
q -1.794154496953985E-15 3.809744615240428E-15 -1.622592558913846E-13 4.391580913842622E-16 -2.464513684656386E-14 2.093585971498455E-16
tp 6.005262802421092E-14 -1.622592558913846E-13 4.904757818521379E-9 5.566817823081101E-12 1.538702184573481E-9 4.059322668575808E-14
node -2.498662363812309E-16 4.391580913842622E-16 5.566817823081101E-12 4.128125634516899E-8 -4.127452563355322E-8 2.036353931555315E-11
peri 6.050096458985888E-15 -2.464513684656386E-14 1.538702184573481E-9 -4.127452563355322E-8 4.176029629548036E-8 -2.034728042657728E-11
i -9.633827596381797E-17 2.093585971498455E-16 4.059322668575808E-14 2.036353931555315E-11 -2.034728042657728E-11 1.447301248017531E-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 14.80   n/a E2021B10  
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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