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12649 Ascanios (2035 T-3)
Classification: Jupiter Trojan          SPK-ID: 2012649
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

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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 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1479857605593776 4.8897e-08  
a 5.154292667254373 9.116e-08 au
q 4.391530746745112 3.019e-07 au
i 6.573317925510628 5.0872e-06 deg
node 337.6011558968189 4.3651e-05 deg
peri 342.0224586736336 4.7859e-05 deg
M 280.3883140487166 2.2246e-05 deg
tp 2459945.705759542605
(2023-Jan-01.20575954)
0.00027595 TDB
period 4274.172432971217
11.70
0.00011339
3.104e-07
d
yr
n .08422683119261611 2.2345e-09 deg/d
Q 5.917054587763634 1.0465e-07 au
  Orbit Determination Parameters
   # obs. used (total)      1066  
   data-arc span      15628 days (42.79 yr)  
   first obs. used      1977-10-07  
   last obs. used      2020-07-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56303  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 02:51:34  

Additional Information
 Earth MOID = 3.37951 au 
 Jupiter MOID = .422513 au 
 T_jup = 2.965 
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Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 11.7   n/a MPO319243  
diameter diameter 25.102 km 0.332 urn:nasa:pds:neowise_diameters_albedos::2.0[jupiter_trojans] (http://adsabs.harvard.edu/abs/2012ApJ...759...49G)  
geometric albedo albedo 0.064   0.009 urn:nasa:pds:neowise_diameters_albedos::2.0[jupiter_trojans] (http://adsabs.harvard.edu/abs/2012ApJ...759...49G)  

12649 Ascanios           Discovered 1977 Oct. 16 by C. J. van Houten and I. van Houten-Groeneveld on Palomar Schmidt plates taken by T. Gehrels.
Ascanios was the son of Aeneas. He is also named Julus and became under this name the ancestor of the Julius family.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20000523/MPCPages.arcLast Updated: 2013-03-29

Alternate Designations
 2035 T-3 = 1988 RW 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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