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18681 Caseylipp (1998 FW103)
Classification: Main-belt Asteroid          SPK-ID: 2018681
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 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .10252936568588 3.9685e-08  
a 2.350523621709549 8.9874e-09 au
q 2.109525925745991 9.3475e-08 au
i 6.767949505618243 4.4471e-06 deg
node 224.3281272261045 2.8079e-05 deg
peri 172.6613964437445 3.2938e-05 deg
M 254.5210508730111 1.9096e-05 deg
tp 2459586.163599609545
(2022-Jan-06.66359961)
7.1019e-05 TDB
period 1316.271132852152
3.60
7.5493e-06
2.067e-08
d
yr
n .2734998823684121 1.5686e-09 deg/d
Q 2.591521317673106 9.9089e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1596  
   data-arc span      10683 days (29.25 yr)  
   first obs. used      1991-04-19  
   last obs. used      2020-07-18  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .50975  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 02:34:48  

Additional Information
 Earth MOID = 1.11594 au 
 Jupiter MOID = 2.7845 au 
 T_jup = 3.542 
[ 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 14.79   n/a E2021B10  
diameter diameter 2.238 km 0.135 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 7.10627 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.]
geometric albedo albedo 0.510   0.043 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

18681 Caseylipp           Discovered 1998 Mar. 31 by the Lincoln Laboratory Near-Earth Asteroid Research Team at Socorro.
Casey Albert Lipp (b. 1985) was awarded third place in the 2003 Intel International Science and Engineering Fair for his botany project. He attends the Greybull High School, Greybull, Wyoming, U.S.A.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20040830/MPCPages.arcLast Updated: 2004-09-06

Alternate Designations
 1998 FW103 = 1991 HB5 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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