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101993 (1999 RJ70)
Classification: Main-belt Asteroid          SPK-ID: 2101993
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 .1828661419404719 4.9507e-08  
a 2.377999748916844 1.0123e-08 au
q 1.94314410929701 1.1696e-07 au
i 4.620807000747933 4.1655e-06 deg
node 183.6769627190242 5.1359e-05 deg
peri 219.7188947549171 5.221e-05 deg
M 246.6465305467597 1.134e-05 deg
tp 2459622.243550646241
(2022-Feb-11.74355065)
4.3975e-05 TDB
period 1339.41800780326
3.67
8.5523e-06
2.341e-08
d
yr
n .2687734507843638 1.7162e-09 deg/d
Q 2.812855388536678 1.1974e-08 au
  Orbit Determination Parameters
   # obs. used (total)      766  
   data-arc span      7666 days (20.99 yr)  
   first obs. used      1999-08-22  
   last obs. used      2020-08-17  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .50654  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 15:39:48  

Additional Information
 Earth MOID = .953294 au 
 Jupiter MOID = 2.5935 au 
 T_jup = 3.513 
[ 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 16.13   n/a E2021B55  
rotation period rot_per 10.7304 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:
[Pal, A.; Szakats, R.; Kiss, C.; Bodi, A.; et al. (2019) Ap. J. Supl. Ser. 247, id.26.]

101993 (1999 RJ70)          Discovered 1999-Sep-07 by LINEAR at Socorro
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

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