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19626 (1999 RJ16)
Classification: Main-belt Asteroid          SPK-ID: 2019626
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 37 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .02546684561325545 3.0616e-08  
a 2.955258156262738 1.2921e-08 au
q 2.879997053049881 8.8965e-08 au
i 2.068333001618814 3.2607e-06 deg
node 157.8014450645539 8.8776e-05 deg
peri 51.28570251029664 0.00011289 deg
M 201.0112898589691 7.1625e-05 deg
tp 2460020.012059895771
(2023-Mar-16.51205990)
0.00037145 TDB
period 1855.630763346507
5.08
1.217e-05
3.332e-08
d
yr
n .1940041128391102 1.2724e-09 deg/d
Q 3.030519259475596 1.325e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2490  
   data-arc span      10536 days (28.85 yr)  
   first obs. used      1992-04-09  
   last obs. used      2021-02-12  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .47663  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 02:59:57  

Additional Information
 Earth MOID = 1.87339 au 
 Jupiter MOID = 1.92544 au 
 T_jup = 3.266 
[ 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 13.58   n/a MPCxxxxx  
rotation period rot_per 7.820 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:
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]

19626 (1999 RJ16)          Discovered 1999-Sep-07 by LINEAR at Socorro
Reference: 20001211/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1999 RJ16 = 2000 RL55 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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