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46169 (2001 FY87)
Classification: Main-belt Asteroid          SPK-ID: 2046169
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05465689910109614 4.6691e-08  
a 2.788129528958229 1.7729e-08 au
q 2.635739014613173 1.3231e-07 au
i 6.905292604584372 4.5884e-06 deg
node 73.83330612530314 4.4995e-05 deg
peri 244.2583178577172 6.3125e-05 deg
M 196.1308373643954 4.528e-05 deg
tp 2459374.538530311096
(2021-Jun-09.03853031)
0.00021459 TDB
period 1700.465581383584
4.66
1.6219e-05
4.441e-08
d
yr
n .2117067254646142 2.0193e-09 deg/d
Q 2.940520043303286 1.8698e-08 au
  Orbit Determination Parameters
   # obs. used (total)      682  
   data-arc span      10309 days (28.22 yr)  
   first obs. used      1991-02-15  
   last obs. used      2019-05-08  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .59175  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 04:33:05  

Additional Information
 Earth MOID = 1.63009 au 
 Jupiter MOID = 2.21647 au 
 T_jup = 3.317 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456449.5 (2013-Jun-06.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05198085803778473 4.6089e-08  
q 2.645300686669892 1.2983e-07 au
tp 2455963.088794605540
(2012-Feb-05.58879461)
0.00022705 TDB
node 73.93065002038649 4.4854e-05 deg
peri 242.5063594686184 6.513e-05 deg
i 6.914627407270857 4.5943e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      682  
   data-arc span      10309 days (28.22 yr)  
   first obs. used      1991-02-15  
   last obs. used      2019-05-08  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .59175  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 04:33:05  

Additional Information
 Jupiter MOID = 2.21647 au 
 T_jup = 3.317 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.124183438853553E-15 -5.933420246810602E-15 1.70078238283802E-12 2.988799503880528E-15 3.516676439830263E-13 7.73491668180665E-16
q -5.933420246810602E-15 1.685467932813811E-14 -4.799501969351141E-12 -8.174820814544279E-15 -9.754098500964581E-13 -1.850233275343725E-15
tp 1.70078238283802E-12 -4.799501969351141E-12 5.155284121778137E-8 -1.340023687132722E-11 1.076124335884667E-8 5.990660897729119E-12
node 2.988799503880528E-15 -8.174820814544279E-15 -1.340023687132722E-11 2.011884066096E-9 -1.999677476330798E-9 -4.270268482935769E-12
peri 3.516676439830263E-13 -9.754098500964581E-13 1.076124335884667E-8 -1.999677476330798E-9 4.24186553337823E-9 5.495391872106098E-12
i 7.73491668180665E-16 -1.850233275343725E-15 5.990660897729119E-12 -4.270268482935769E-12 5.495391872106098E-12 2.11072352752257E-11

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 14.7   n/a MPO436104  
rotation period rot_per 4.588 h n/a LCDB (Rev. 2019-January); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]

46169 (2001 FY87)          Discovered 2001-Mar-21 by LONEOS at Anderson Mesa
Reference: 20020822/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 2001 FY87 = 1999 XN171 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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