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120785 (1998 FT3)
Classification: Main-belt Asteroid          SPK-ID: 2120785
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 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1731731561143347 4.6353e-08  
a 2.537196084661093 1.1645e-08 au
q 2.097821830999399 1.2092e-07 au
i 1.963434038367969 4.0504e-06 deg
node 15.23245924697278 0.00015274 deg
peri 73.72288969013105 0.00015335 deg
M 281.9193999150253 1.4999e-05 deg
tp 2459520.662245530006
(2021-Nov-02.16224553)
6.201e-05 TDB
period 1476.146549403657
4.04
1.0162e-05
2.782e-08
d
yr
n .2438782247910515 1.6789e-09 deg/d
Q 2.976570338322788 1.3661e-08 au
  Orbit Determination Parameters
   # obs. used (total)      509  
   data-arc span      9741 days (26.67 yr)  
   first obs. used      1994-04-03  
   last obs. used      2020-12-03  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .57307  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 17:08:07  

Additional Information
 Earth MOID = 1.115 au 
 Jupiter MOID = 2.22677 au 
 T_jup = 3.426 
[ 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 16.49   n/a E2021B55  
rotation period rot_per 4.590 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.; Ip, W.-H.; Lin, H.-W.; Cheng, Y.C.; et al. (2015) Astrophys. J. Supp. Ser. 219, A27.]
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]

120785 (1998 FT3)          Discovered 1998-Mar-20 by Spacewatch at Kitt Peak
Reference: 20060314/Numbers.arcLast Updated: 2006-03-23

[ show close-approach data ]
Alternate Designations
 1998 FT3 = 2002 CQ90 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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