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18745 San Pedro (1999 BJ14)
Classification: Main-belt Asteroid          SPK-ID: 2018745
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 30 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1048780163066864 2.2217e-08  
a 2.599797121863006 1.1115e-08 au
q 2.327135556922181 5.7603e-08 au
i 15.01595162167066 7.9965e-07 deg
node 166.0529352443276 2.4283e-06 deg
peri 237.4908750267353 7.9793e-06 deg
M 211.772617747267 1.1015e-05 deg
tp 2459830.925182634804
(2022-Sep-08.42518263)
4.9286e-05 TDB
period 1531.114307622099
4.19
9.819e-06
2.688e-08
d
yr
n .2351228763312251 1.5078e-09 deg/d
Q 2.872458686803831 1.2281e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1878  
   data-arc span      23824 days (65.23 yr)  
   first obs. used      1955-11-20  
   last obs. used      2021-02-10  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .47481  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 02:36:37  

Additional Information
 Earth MOID = 1.36444 au 
 Jupiter MOID = 2.53486 au 
 T_jup = 3.359 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 13.38   n/a E2021B10  
rotation period rot_per 3.175 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:
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]

18745 San Pedro           Discovered 1999 Jan. 23 by the OCA-DLR Asteroid Survey at Caussols.
San Pedro de Atacama, a town in Chile's region II, was inhabited by the Likan Antay population for thousands of years. Famous for its beautiful natural sites, it is now one of the most visited places in the country. The ALMA observatory and many other astronomical projects will be soon installed near San Pedro.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20030614/MPCPages.arcLast Updated: 2005-04-26

Alternate Designations
 1999 BJ14 = 1991 JO2 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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