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18031 (1999 LO14)
Classification: Main-belt Asteroid          SPK-ID: 2018031
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 33 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1389885527177206 2.3925e-08  
a 2.673987003269503 1.0974e-08 au
q 2.30233341969908 6.4957e-08 au
i 13.43358515048605 9.252e-07 deg
node 123.13146531352 1.4841e-06 deg
peri 316.6800908571375 4.8018e-06 deg
M 157.9715289860837 5.2073e-06 deg
tp 2458499.668383495476
(2019-Jan-16.16838350)
1.9866e-05 TDB
period 1597.119326254383
4.37
9.8314e-06
2.692e-08
d
yr
n .2254058254020906 1.3875e-09 deg/d
Q 3.045640586839926 1.2499e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2052  
   data-arc span      10620 days (29.08 yr)  
   first obs. used      1991-07-17  
   last obs. used      2020-08-13  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .43412  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 02:20:22  

Additional Information
 Earth MOID = 1.33671 au 
 Jupiter MOID = 2.18486 au 
 T_jup = 3.327 
[ 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 13.45   n/a E2021B10  
diameter diameter 6.217 km 0.237 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
rotation period rot_per 17.78 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:
[Chang, C.-K.; Lin, H.-W.; Ip, W.-H.; Prince, T.A.; et al. (2016) Astrophys. J. Sup. Ser. 227, A20.]
[Pal, A.; Szakats, R.; Kiss, C.; Bodi, A.; et al. (2019) Ap. J. Supl. Ser. 247, id.26.]
geometric albedo albedo 0.270   0.016 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  

18031 (1999 LO14)          Discovered 1999-Jun-09 by LINEAR at Socorro
Reference: 20001013/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1999 LO14 = 1997 DB = 1998 GO4 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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