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101997 (1999 RU75)
Classification: Main-belt Asteroid          SPK-ID: 2101997
[ 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 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1022962418299576 4.7091e-08  
a 2.38415028654058 1.1078e-08 au
q 2.140260672269662 1.1214e-07 au
i 4.775666990986833 5.5709e-06 deg
node 219.7329519231528 3.9859e-05 deg
peri 198.0910916721646 4.5054e-05 deg
M 169.0383996728824 2.2105e-05 deg
tp 2458369.133200735525
(2018-Sep-07.63320074)		 8.06e-05 TDB
period 1344.617839349278
3.68		 9.3718e-06
2.566e-08		 d
yr
n .2677340649996287 1.8661e-09 deg/d
Q 2.628039900811498 1.2211e-08 au
   Orbit Determination Parameters
   # obs. used (total)      857  
   data-arc span      7672 days (21.00 yr)  
   first obs. used      1999-09-04  
   last obs. used      2020-09-05  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53614  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 19:57:17  

Additional Information
 Earth MOID = 1.15267 au 
 Jupiter MOID = 2.65836 au 
 T_jup = 3.525 
[ 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 15.7   n/a MPO417515  

101997 (1999 RU75)          Discovered 1999-Sep-07 by LINEAR at Socorro
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

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