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487934 (2015 TH217)
Classification: Main-belt Asteroid          SPK-ID: 2487934
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 8 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1093790817160076 1.4179e-07  
a 2.609444219204843 6.5575e-08 au
q 2.324025606719073 4.1655e-07 au
i 7.178951864412016 1.3248e-05 deg
node 17.69045117094518 5.4336e-05 deg
peri 29.14044202973435 0.00013822 deg
M 6.136178470898595 0.00012705 deg
tp 2458974.256851673308
(2020-May-04.75685167)
0.0005426 TDB
period 1539.644494112255
4.22
5.8036e-05
1.589e-07
d
yr
n .2338202106893336 8.8138e-09 deg/d
Q 2.894862831690614 7.2747e-08 au
  Orbit Determination Parameters
   # obs. used (total)      74  
   data-arc span      4305 days (11.79 yr)  
   first obs. used      2007-12-16  
   last obs. used      2019-09-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .67619  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-08 18:49:01  

Additional Information
 Earth MOID = 1.33587 au 
 Jupiter MOID = 2.48818 au 
 T_jup = 3.391 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 17.9   n/a MPO495393  

487934 (2015 TH217)          Discovered 2011-Sep-28 by Mt. Lemmon Survey at Mount Lemmon
Reference: Last Updated: 2017-03-14

Alternate Designations
 2015 TH217 = 2011 SE172 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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