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JPL Small-Body Database Browser
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382904 (2004 RT81)
Classification: Main-belt Asteroid          SPK-ID: 2382904
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 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2451902159431665 1.148e-07  
a 2.597437737504103 3.4872e-08 au
q 1.960571417746542 2.8143e-07 au
i 3.65274384078569 1.0747e-05 deg
node 197.1911769041708 0.00016635 deg
peri 225.273638441243 0.0001686 deg
M 132.0986538779785 3.0329e-05 deg
tp 2458039.436473429442
(2017-Oct-12.93647343)
0.00012249 TDB
period 1529.030490741983
4.19
3.0792e-05
8.43e-08
d
yr
n .2354433101103857 4.7414e-09 deg/d
Q 3.234304057261664 4.3422e-08 au
  Orbit Determination Parameters
   # obs. used (total)      75  
   data-arc span      6294 days (17.23 yr)  
   first obs. used      2000-10-01  
   last obs. used      2017-12-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53812  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 19:00:36  

Additional Information
 Earth MOID = .975245 au 
 Jupiter MOID = 2.11221 au 
 T_jup = 3.370 
[ 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 17.4   n/a MPO434374  

382904 (2004 RT81)          Discovered 2004-Sep-08 by LINEAR at Socorro
Reference: Last Updated: 2014-01-21

[ show close-approach data ]
Alternate Designations
 2004 RT81 = 2000 US83 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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