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17812 (1998 FH109)
Classification: Main-belt Asteroid          SPK-ID: 2017812
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 30 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1126151610493804 1.8834e-08  
a 3.100243101483317 1.518e-08 au
q 2.751108725317542 6.0331e-08 au
i 14.63830656504195 7.7346e-07 deg
node 209.6624143589208 1.14e-06 deg
peri 119.6083157620634 8.7709e-06 deg
M 285.0565911769453 8.2576e-06 deg
tp 2459615.571576004922
(2022-Feb-05.07157600)
4.6642e-05 TDB
period 1993.848020905669
5.46
1.4644e-05
4.009e-08
d
yr
n .1805553864815015 1.3261e-09 deg/d
Q 3.449377477649091 1.6889e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1975  
   data-arc span      11749 days (32.17 yr)  
   first obs. used      1988-05-14  
   last obs. used      2020-07-14  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .48805  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 02:13:59  

Additional Information
 Earth MOID = 1.77518 au 
 Jupiter MOID = 2.00698 au 
 T_jup = 3.163 
[ 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 13.09   n/a E2021B10  
diameter diameter 14.206 km 2.264 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
rotation period rot_per 3.70682 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 0.061   0.029 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  

17812 (1998 FH109)          Discovered 1998-Mar-31 by LINEAR at Socorro
Reference: 20001013/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1998 FH109 = 1988 JP2 = 1999 NP57 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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