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249611 (1999 RX185)
Classification: Main-belt Asteroid          SPK-ID: 2249611
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 8 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1970783173229248 4.8629e-08  
a 2.359909347319203 1.3224e-08 au
q 1.894822384114893 1.1699e-07 au
i 1.645875112364201 5.566e-06 deg
node 146.9871908156345 0.00016745 deg
peri 175.0381285426423 0.00016816 deg
M 165.4625589874652 1.2718e-05 deg
tp 2457991.890617209489
(2017-Aug-26.39061721)
4.6663e-05 TDB
period 1324.162874944913
3.63
1.113e-05
3.047e-08
d
yr
n .271869878556274 2.2852e-09 deg/d
Q 2.824996310523513 1.5831e-08 au
  Orbit Determination Parameters
   # obs. used (total)      216  
   data-arc span      7101 days (19.44 yr)  
   first obs. used      1999-08-17  
   last obs. used      2019-01-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .565  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 11:21:10  

Additional Information
 Earth MOID = .8814 au 
 Jupiter MOID = 2.49047 au 
 T_jup = 3.525 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457068.5 (2015-Feb-15.0) TDB
Reference: JPL 8 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1976392867610055 4.8889e-08  
q 1.893226370921042 1.1762e-07 au
tp 2456665.436486408363
(2014-Jan-07.93648641)
4.7554e-05 TDB
node 146.9901347269184 0.00016755 deg
peri 174.6222164053397 0.00016825 deg
i 1.643952243561482 5.5706e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      216  
   data-arc span      7101 days (19.44 yr)  
   first obs. used      1999-08-17  
   last obs. used      2019-01-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .565  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 11:21:10  

Additional Information
 Jupiter MOID = 2.49047 au 
 T_jup = 3.525 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.390180692997261E-15 -5.728149819168563E-15 -1.951763156696589E-13 1.009322464101579E-14 -9.664191341715227E-14 -6.582414677432089E-16
q -5.728149819168563E-15 1.383508497700201E-14 3.434902716539348E-13 -2.587577577568184E-14 2.037814335752349E-13 1.630932291361766E-15
tp -1.951763156696589E-13 3.434902716539348E-13 2.261362292466148E-9 7.080759386668922E-12 7.386171120858891E-10 1.203159119624796E-13
node 1.009322464101579E-14 -2.587577577568184E-14 7.080759386668922E-12 2.807456830261519E-8 -2.806057374527868E-8 -7.392905534338178E-11
peri -9.664191341715227E-14 2.037814335752349E-13 7.386171120858891E-10 -2.806057374527868E-8 2.830777614754889E-8 7.395169362512784E-11
i -6.582414677432089E-16 1.630932291361766E-15 1.203159119624796E-13 -7.392905534338178E-11 7.395169362512784E-11 3.103124637984707E-11

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 17.3   n/a MPO427417  

249611 (1999 RX185)          Discovered 1999-Sep-09 by LINEAR at Socorro
Reference: 20100923/Numbers.arcLast Updated: 2010-09-27

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