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20289 Nettimi (1998 FQ64)
Classification: Main-belt Asteroid          SPK-ID: 2020289
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 38 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1238580664166011 1.3541e-08  
a 2.320430543031451 5.7831e-09 au
q 2.033026502717552 3.1803e-08 au
i 6.452608133477838 7.0868e-07 deg
node 15.50972533143869 8.895e-06 deg
peri 288.807799987048 9.6961e-06 deg
M 53.49273020392477 5.9063e-06 deg
tp 2459008.658063179042
(2020-Jun-08.15806318)
2.1185e-05 TDB
period 1291.074450533053
3.53
4.8265e-06
1.321e-08
d
yr
n .2788375216095129 1.0424e-09 deg/d
Q 2.607834583345351 6.4994e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2505  
   data-arc span      10898 days (29.84 yr)  
   first obs. used      1991-04-08  
   last obs. used      2021-02-07  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .47077  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 03:16:31  

Additional Information
 Earth MOID = 1.0274 au 
 Jupiter MOID = 2.61651 au 
 T_jup = 3.559 
[ 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 14.24   n/a E2021B10  
rotation period rot_per 3.831 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:
[Erasmus, N.; Navarro-Meza, S.; McNeill, A.; Trilling, D.E.; et al. (2020) Ap. J. Suppl. Ser. 247, A13.]

20289 Nettimi           Discovered 1998 Mar. 20 by the Lincoln Laboratory Near-Earth Asteroid Research Team at Socorro.
Divya Nettimi (b. 1986) is a finalist in the 2004 Intel Science Talent Search, a science competition for high school seniors, for her biochemistry project. She attends the Thomas Jefferson High School for Science and Technology, Alexandria, Virginia.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20040415/MPCPages.arcLast Updated: 2004-04-20

[ show close-approach data ]
Alternate Designations
 1998 FQ64 = 1991 GM4 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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