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JPL Small-Body Database Browser
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74639 (1999 RF59)
Classification: Main-belt Asteroid          SPK-ID: 2074639
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1151066348986272 4.1454e-08  
a 2.30293675055996 1.0086e-08 au
q 2.037853450818624 9.3608e-08 au
i 5.686650255505274 4.8478e-06 deg
node 163.2306772011 3.6601e-05 deg
peri 222.6720714718007 4.1119e-05 deg
M 183.6854215051166 1.9961e-05 deg
tp 2459225.683006810632
(2021-Jan-11.18300681)
7.2632e-05 TDB
period 1276.501831970513
3.49
8.3856e-06
2.296e-08
d
yr
n .2820207468439545 1.8526e-09 deg/d
Q 2.568020050301296 1.1247e-08 au
  Orbit Determination Parameters
   # obs. used (total)      698  
   data-arc span      9140 days (25.02 yr)  
   first obs. used      1994-05-02  
   last obs. used      2019-05-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58253  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 05:41:46  

Additional Information
 Earth MOID = 1.04447 au 
 Jupiter MOID = 2.87143 au 
 T_jup = 3.575 
[ 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 16.0   n/a MPO436305  
rotation period rot_per 5.08 h n/a LCDB (Rev. 2019-January); 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.; Lin, H.-W.; Ip, W.-H.; Prince, T.A.; et al. (2016) Astrophys. J. Sup. Ser. 227, A20.]

74639 (1999 RF59)          Discovered 1999-Sep-07 by LINEAR at Socorro
Reference: 20040415/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1999 RF59 = 2001 DG72 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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