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JPL Small-Body Database Browser
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487584 (2015 FD304)
Classification: Main-belt Asteroid          SPK-ID: 2487584
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 8 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2761383765607774 1.3474e-07  
a 2.659962497879468 7.3244e-08 au
q 1.925444772002482 3.9463e-07 au
i 13.20240073362733 1.1199e-05 deg
node 170.8795875412033 6.0214e-05 deg
peri 127.302012381956 7.3038e-05 deg
M 291.9838757555077 4.989e-05 deg
tp 2458899.878823631181
(2020-Feb-20.37882363)
0.00023056 TDB
period 1584.570977902384
4.34
6.5448e-05
1.792e-07
d
yr
n .2271908327366687 9.3838e-09 deg/d
Q 3.394480223756455 9.3469e-08 au
  Orbit Determination Parameters
   # obs. used (total)      75  
   data-arc span      7555 days (20.68 yr)  
   first obs. used      1998-08-30  
   last obs. used      2019-05-07  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51001  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 10:27:55  

Additional Information
 Earth MOID = .941217 au 
 Jupiter MOID = 2.02988 au 
 T_jup = 3.294 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457635.5 (2016-Sep-04.0) TDB
Reference: JPL 8 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2755072701771707 1.3455e-07  
q 1.927847194660437 3.9421e-07 au
tp 2457315.465224480078
(2015-Oct-19.96522448)
0.00017572 TDB
node 170.8909253969884 6.0204e-05 deg
peri 127.3664218836409 7.3114e-05 deg
i 13.20124684667193 1.1201e-05 deg
  Orbit Determination Parameters
   # obs. used (total)      75  
   data-arc span      7555 days (20.68 yr)  
   first obs. used      1998-08-30  
   last obs. used      2019-05-07  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51001  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 10:27:55  

Additional Information
 Jupiter MOID = 2.02988 au 
 T_jup = 3.294 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.810353978530344E-14 -5.275818690801407E-14 -1.56550882253469E-11 -2.443463382655942E-13 -2.664972403839241E-12 -2.899020601366048E-13
q -5.275818690801407E-14 1.554040260550882E-13 4.911553746761651E-11 7.12315227515444E-13 8.818142986746566E-12 8.898860411566887E-13
tp -1.56550882253469E-11 4.911553746761651E-11 3.087745233223247E-8 2.108805570278812E-10 7.381507701874673E-9 4.371110514605008E-10
node -2.443463382655942E-13 7.12315227515444E-13 2.108805570278812E-10 3.624473449508466E-9 -3.488088174561781E-9 4.748222218678937E-10
peri -2.664972403839241E-12 8.818142986746566E-12 7.381507701874673E-9 -3.488088174561781E-9 5.345587278624299E-9 -3.611370982822224E-10
i -2.899020601366048E-13 8.898860411566887E-13 4.371110514605008E-10 4.748222218678937E-10 -3.611370982822224E-10 1.2545619726637E-10

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 17.1   n/a E2015L32  

487584 (2015 FD304)          Discovered 1998-Aug-30 by Beijing Schmidt CCD Asteroid Program at Xinglong
Reference: Last Updated: 2017-03-14

Alternate Designations
 2015 FD304 = 1998 QD63 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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