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11777 Hargrave (3526 T-3)
Classification: Main-belt Asteroid          SPK-ID: 2011777
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 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .209366996773907 3.0475e-08  
a 2.39204629091251 9.5039e-09 au
q 1.891230742839994 7.4575e-08 au
i 2.285181032607776 4.3855e-06 deg
node 7.709784709489792 8.7814e-05 deg
peri 273.3480802702601 8.8519e-05 deg
M 311.495999120702 1.2624e-05 deg
tp 2459382.565584201752
(2021-Jun-17.06558420)
4.8006e-05 TDB
period 1351.303173437917
3.70
8.0533e-06
2.205e-08
d
yr
n .26640949793976 1.5877e-09 deg/d
Q 2.892861838985026 1.1494e-08 au
  Orbit Determination Parameters
   # obs. used (total)      892  
   data-arc span      15536 days (42.54 yr)  
   first obs. used      1977-10-07  
   last obs. used      2020-04-20  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56643  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 03:36:53  

Additional Information
 Earth MOID = .874614 au 
 Jupiter MOID = 2.25832 au 
 T_jup = 3.500 
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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 15.81   n/a E2021B10  
diameter diameter 2.209 km 0.099 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.208   0.042 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

11777 Hargrave           Discovered 1977 Oct. 16 by C. J. van Houten and I. van Houten-Groeneveld on Palomar Schmidt plates taken by T. Gehrels.
Lawrence Hargrave (1850-1915), Australian astronomer and aviation pioneer, experimented beginning in the 1880s with exquisitely made planes and kites. His kites flew him over almost 5 meters in 1894.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20030501/MPCPages.arcLast Updated: 2003-10-02

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Alternate Designations
 3526 T-3 = 1991 GH7 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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