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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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Orbit Diagram
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Note: This Java-based orbit viewer will eventually be retired.

Note: Make sure you have Java enabled on your browser to see the applet. This applet is provided as a 3D orbit visualization tool. The applet 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. For accurate long-term ephemerides, please instead use our Horizons system.

Note: If the applet is not working, here are some notes that might help.
Orbit Viewer

Additional Notes: the orbits shown in the applet are color coded. The planets are white lines, and the asteroid/comet is a blue line. The bright white line indicates the portion of the orbit that is above the ecliptic plane, and the darker portion is below the ecliptic plane. Likewise for the asteroid/comet orbit, the light blue indicates the portion above the ecliptic plane, and the dark blue the portion below the ecliptic plane.

Orbit Viewer applet originally written and kindly provided by Osamu Ajiki (AstroArts), and further modified by Ron Baalke (JPL).


Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 31 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08869959129142374 2.927e-08  
a 2.166864323463257 5.8813e-09 au
q 1.974664343588099 6.1965e-08 au
i .8568032587627912 3.8262e-06 deg
node 125.4740520488083 0.00020577 deg
peri 103.1834060334881 0.00020695 deg
M 21.72218209806537 2.1868e-05 deg
tp 2458930.201354868783
(2020-Mar-21.70135487)
7.0754e-05 TDB
period 1165.053866733401
3.19
4.7433e-06
1.299e-08
d
yr
n .308998588202084 1.258e-09 deg/d
Q 2.359064303338416 6.403e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1808  
   data-arc span      21866 days (59.87 yr)  
   first obs. used      1960-09-24  
   last obs. used      2020-08-06  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .47563  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Aug-24 23:20:51  

Additional Information
 Earth MOID = .964596 au 
 Jupiter MOID = 2.61751 au 
 T_jup = 3.687 
[ show covariance matrix ]

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

[ hide close-approach data ]
Close-Approach Data   ...sorted by Date/Time (TDB)
Date/Time (TDB) Time Uncertainty
(days_HH:MM)
Body Nominal Distance (au) Minimum Distance (au) Maximum Distance (au) V-relative (km/s) V-infinity (km/s) JD (TDB) Time Uncertainty (minutes) Semi-major axis (km) Semi-minor axis (km) range-LOV angle (deg) N-sigma BP Orbit Ref. Reference Modified
2036-Nov-07 14:08 < 00:01 Hebe 0.0425578995572631 0.0425559592712955 0.042559839954504 7.58205496942345 7.5820549501575 2465005.088676761 0.176332261234605 148.802454022011 27.2126587035797 50.6106176661003 182805.201097797 T 31 CATAB v2.0f-lin.ifort 2020-Aug-24 23:21:04 2020-Aug-24 23:21
2180-May-23 15:37 < 00:01 Hebe 0.0161535129630891 0.0161438017507512 0.016163230917187 7.46720412054537 7.46720406900678 2517432.150499017 0.197871953867426 711.424829437582 26.7889843720926 47.1369624918162 66144.468741816 T 31 CATAB v2.0f-lin.ifort 2020-Aug-24 23:21:04 2020-Aug-24 23:21

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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