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487630 (2015 NT21)
Classification: Main-belt Asteroid          SPK-ID: 2487630
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 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1317769949784582 6.1051e-08  
a 2.534445385945003 4.9882e-08 au
q 2.200463789048152 1.5687e-07 au
i 15.80702285087655 8.6796e-06 deg
node 117.8387542357898 3.3824e-05 deg
peri 236.949469646354 6.018e-05 deg
M .2934424056171652 5.3531e-05 deg
tp 2458999.298722877883
(2020-May-29.79872288)
0.00021913 TDB
period 1473.746655847075
4.03
4.3509e-05
1.191e-07
d
yr
n .2442753634566048 7.2117e-09 deg/d
Q 2.868426982841854 5.6456e-08 au
  Orbit Determination Parameters
   # obs. used (total)      118  
   data-arc span      3916 days (10.72 yr)  
   first obs. used      2008-11-06  
   last obs. used      2019-07-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .60404  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-24 08:19:31  

Additional Information
 Earth MOID = 1.23079 au 
 Jupiter MOID = 2.56679 au 
 T_jup = 3.384 
[ 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 16.7   n/a MPO437846  

487630 (2015 NT21)          Discovered 2015-May-14 by Pan-STARRS 1 at Haleakala
Reference: Last Updated: 2017-03-14
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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