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260277 (2004 TR12)
Classification: Aten [NEO]          SPK-ID: 2260277
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 40 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2096047140693131 1.6229e-07  
a .8951091845655252 3.8726e-09 au
q .7074900798738523 1.4719e-07 au
i 19.35601786032664 1.9311e-05 deg
node 155.3804879042529 9.5634e-05 deg
peri 77.776893365501 8.1274e-05 deg
M 162.7174019502382 7.6466e-05 deg
tp 2459060.688161199650
(2020-Jul-30.18816120)
6.5512e-05 TDB
period 309.3231662063925
0.85
2.0074e-06
5.496e-09
d
yr
n 1.163831356102808 7.5527e-09 deg/d
Q 1.082728289257198 4.6843e-09 au
  Orbit Determination Parameters
   # obs. used (total)      204  
   data-arc span      6060 days (16.59 yr)  
   first obs. used      2004-10-07  
   last obs. used      2021-05-11  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .31818  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-11 05:56:01  

Additional Information
 Earth MOID = .09691 au 
 Jupiter MOID = 3.94256 au 
 T_jup = 6.578 
[ 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 18.2   n/a MPO188120  
diameter diameter 0.470 km 0.132 urn:nasa:pds:neowise_diameters_albedos::2.0[neos] (http://adsabs.harvard.edu/abs/2012ApJ...760L..12M)  
geometric albedo albedo 0.419   0.173 urn:nasa:pds:neowise_diameters_albedos::2.0[neos] (http://adsabs.harvard.edu/abs/2012ApJ...760L..12M)  

260277 (2004 TR12)          Discovered 2004-Oct-07 by Siding Spring Survey at Siding Spring
Reference: 20110119/Numbers.arcLast Updated: 2011-01-25

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