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74649 (1999 RF73)
Classification: Main-belt Asteroid          SPK-ID: 2074649
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1012323847593918 4.1433e-08  
a 2.231381352120222 8.4699e-09 au
q 2.005493296537456 9.5268e-08 au
i 3.143132098171398 4.5444e-06 deg
node 235.117478693875 7.4916e-05 deg
peri 201.984451976654 7.8654e-05 deg
M 359.8821465875162 2.444e-05 deg
tp 2459000.898564659340
(2020-May-31.39856466)
8.2653e-05 TDB
period 1217.472403544484
3.33
6.932e-06
1.898e-08
d
yr
n .2956945873696317 1.6836e-09 deg/d
Q 2.457269407702988 9.3274e-09 au
  Orbit Determination Parameters
   # obs. used (total)      616  
   data-arc span      9450 days (25.87 yr)  
   first obs. used      1994-01-10  
   last obs. used      2019-11-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56335  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-14 07:26:55  

Additional Information
 Earth MOID = 1.02112 au 
 Jupiter MOID = 2.73509 au 
 T_jup = 3.633 
[ 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 16.4   n/a MPO436305  
rotation period rot_per 0.97 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 lower-limit; Incomplete or inconclusive result.
Published Reference List:
[Erasmus, N.; McNeill, A.; Mommert, M.; Trilling, D.E.; et al. (2018) Ap. J. Suppl. Series 237, A19.]
[Erasmus, N.; McNeill, A.; Mommert, N.; Trilling, D.E.; et al. (2019) Ap. J. Suppl. Series 242, A15.]

74649 (1999 RF73)          Discovered 1999-Sep-07 by LINEAR at Socorro
Reference: 20040415/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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