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JPL Small-Body Database Browser
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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.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 38 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2096027463546321 1.626e-07  
a .8951323087929322 3.9552e-09 au
q .7075101185191709 1.4749e-07 au
i 19.35571535912862 1.933e-05 deg
node 155.3810540165862 9.88e-05 deg
peri 77.77718440085627 8.1787e-05 deg
M 289.9531253284346 8.0421e-05 deg
tp 2459060.688779676269
(2020-Jul-30.18877968)
6.9198e-05 TDB
period 309.3351528537603
0.85
2.0502e-06
5.613e-09
d
yr
n 1.163786257975639 7.7135e-09 deg/d
Q 1.082754499066693 4.7843e-09 au
  Orbit Determination Parameters
   # obs. used (total)      200  
   data-arc span      4442 days (12.16 yr)  
   first obs. used      2004-10-07  
   last obs. used      2016-12-05  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .32336  
   source      ORB  
   producer      Otto Matic  
   solution date      2017-Apr-06 09:24:42  

Additional Information
 Earth MOID = .0953857 au 
 Jupiter MOID = 3.94366 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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