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5501 (1982 FF2)
Classification: Main-belt Asteroid          SPK-ID: 2005501
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 36 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1375895678135655 1.9458e-08  
a 2.430981493838274 5.9047e-09 au
q 2.096503800738291 4.7548e-08 au
i 4.298892548216255 6.1735e-07 deg
node 232.9637645530013 1.2832e-05 deg
peri 313.7090760188609 1.6356e-05 deg
M 79.27657443818933 4.4197e-06 deg
tp 2458895.630989562851
(2020-Feb-16.13098956)
1.6922e-05 TDB
period 1384.429694839379
3.79
5.044e-06
1.381e-08
d
yr
n .2600348730902995 9.4741e-10 deg/d
Q 2.765459186938258 6.7171e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2959  
   data-arc span      19485 days (53.35 yr)  
   first obs. used      1967-05-02  
   last obs. used      2020-09-05  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .46743  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-12 17:37:20  

Additional Information
 Earth MOID = 1.09953 au 
 Jupiter MOID = 2.20608 au 
 T_jup = 3.491 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457073.5 (2015-Feb-20.0) TDB
Reference: JPL 36 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1382008534884683 1.9406e-08  
q 2.093939899034959 4.7523e-08 au
tp 2457511.508232958670
(2016-May-03.00823296)
1.7383e-05 TDB
node 233.0257914881677 1.2832e-05 deg
peri 313.602625779379 1.633e-05 deg
i 4.298974337140987 6.178e-07 deg
  Orbit Determination Parameters
   # obs. used (total)      2959  
   data-arc span      19485 days (53.35 yr)  
   first obs. used      1967-05-02  
   last obs. used      2020-09-05  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .46743  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-12 17:37:20  

Additional Information
 Jupiter MOID = 2.20608 au 
 T_jup = 3.491 
Orbit Covariance (6×6)
  e q tp node peri i
e 3.765851390669657E-16 -9.168024715180971E-16 2.936147569065535E-14 -7.253317263708158E-14 1.04690206533058E-13 6.352613329526659E-17
q -9.168024715180971E-16 2.258389466057372E-15 -9.454552363220598E-14 1.807227220404718E-13 -2.67165113973932E-13 5.117125526004075E-17
tp 2.936147569065535E-14 -9.454552363220598E-14 3.021667610408769E-10 -8.576136682639365E-11 1.820247427777342E-10 -3.990880894394214E-12
node -7.253317263708158E-14 1.807227220404718E-13 -8.576136682639365E-11 1.646619661810499E-10 -1.992189388078688E-10 6.90237793138742E-12
peri 1.04690206533058E-13 -2.67165113973932E-13 1.820247427777342E-10 -1.992189388078688E-10 2.666797843702512E-10 -8.426062389211424E-12
i 6.352613329526659E-17 5.117125526004075E-17 -3.990880894394214E-12 6.90237793138742E-12 -8.426062389211424E-12 3.816813314361815E-13

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 13.67   n/a E2021B10  
rotation period rot_per 2.46 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Result based on fragmentary lightcurve(s), may be completely wrong.
Published Reference List:
[Chang, C.-K.; Lin, H.-W.; Ip, W.-H.; Prince, T.A.; et al. (2016) Astrophys. J. Sup. Ser. 227, A20.]

5501 (1982 FF2)          Discovered 1982-Mar-30 by Taff, L. G. at Socorro
Reference: DISCOVERY.DBLast Updated: 2003-08-29

Alternate Designations
 1982 FF2 = 1948 GD = 1967 JW = 1987 SJ23 = 1991 RS3 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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