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15969 Charlesgreen (1998 EW11)
Classification: Main-belt Asteroid          SPK-ID: 2015969
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 43 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07665747379514365 1.5419e-08  
a 3.156770169064556 1.5322e-08 au
q 2.914780142552199 5.4454e-08 au
i 8.647849037151962 2.7202e-07 deg
node 132.2573148873882 3.2906e-06 deg
peri 217.207763198009 1.1229e-05 deg
M 201.2085630522606 1.3004e-05 deg
tp 2460104.123362524881
(2023-Jun-08.62336252)
7.5562e-05 TDB
period 2048.626908112303
5.61
1.4916e-05
4.084e-08
d
yr
n .1757274585110864 1.2794e-09 deg/d
Q 3.398760195576914 1.6497e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2691  
   data-arc span      11522 days (31.55 yr)  
   first obs. used      1989-09-05  
   last obs. used      2021-03-23  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .45089  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-04 02:10:31  

Additional Information
 Earth MOID = 1.91108 au 
 Jupiter MOID = 1.97337 au 
 T_jup = 3.184 
[ 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 12.55   n/a E2021B10  
rotation period rot_per 2.79088 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Pal, A.; Szakats, R.; Kiss, C.; Bodi, A.; et al. (2019) Ap. J. Supl. Ser. 247, id.26.]

15969 Charlesgreen           Discovered 1998 Mar. 1 by E. W. Elst at the European Southern Observatory.
Charles Green (1735-1771) was the official astronomer on Cook's expedition aboard the Endeavour to Tahiti to observe the 1769 transit of Venus. After the successful observation of the event, the expedition left Tahiti and sailed for Australia and Jakarta. In Batavia Green caught malaria and was buried at sea.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20060809/MPCPages.arcLast Updated: 2007-08-08

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Alternate Designations
 1998 EW11 = 1993 GW 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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