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47144 Faulkes (1999 PY)
Classification: Main-belt Asteroid          SPK-ID: 2047144
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 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1240726237219457 4.6565e-08  
a 2.234236217224658 6.4158e-09 au
q 1.957028667739 1.0341e-07 au
i 6.297233904251849 5.5992e-06 deg
node 48.85518125045412 3.7075e-05 deg
peri 293.0884933463358 4.2315e-05 deg
M 109.3166245840499 2.0671e-05 deg
tp 2458630.095912417162
(2019-May-26.59591242)
6.9875e-05 TDB
period 1219.809631309067
3.34
5.2542e-06
1.439e-08
d
yr
n .2951280189628094 1.2712e-09 deg/d
Q 2.511443766710316 7.2119e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1390  
   data-arc span      7897 days (21.62 yr)  
   first obs. used      1998-04-21  
   last obs. used      2019-12-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51102  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-14 04:01:14  

Additional Information
 Earth MOID = .95969 au 
 Jupiter MOID = 2.85586 au 
 T_jup = 3.621 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456029.5 (2012-Apr-12.0) TDB
Reference: JPL 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1237565714213204 4.6619e-08  
q 1.957545611554794 1.0344e-07 au
tp 2456190.310899035393
(2012-Sep-19.81089904)
7.0089e-05 TDB
node 48.92085163500235 3.7025e-05 deg
peri 292.9173153263363 4.2329e-05 deg
i 6.302298722298188 5.603e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1390  
   data-arc span      7897 days (21.62 yr)  
   first obs. used      1998-04-21  
   last obs. used      2019-12-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51102  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-14 04:01:14  

Additional Information
 Jupiter MOID = 2.85586 au 
 T_jup = 3.621 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.173333635415089E-15 -4.815397716534847E-15 1.336140785268465E-12 -1.609143488422214E-14 3.396486228740145E-13 9.335326455730473E-17
q -4.815397716534847E-15 1.070034400255717E-14 -3.002721505280562E-12 3.516503765815165E-14 -7.64924574674128E-13 -1.636463805427594E-16
tp 1.336140785268465E-12 -3.002721505280562E-12 4.912411451119067E-9 -2.097714774412734E-11 1.447773732153823E-9 -2.490812267518764E-12
node -1.609143488422214E-14 3.516503765815165E-14 -2.097714774412734E-11 1.370829905074854E-9 -1.367552934413968E-9 -5.49848252462741E-11
peri 3.396486228740145E-13 -7.64924574674128E-13 1.447773732153823E-9 -1.367552934413968E-9 1.79178044824517E-9 5.392002225860122E-11
i 9.335326455730473E-17 -1.636463805427594E-16 -2.490812267518764E-12 -5.49848252462741E-11 5.392002225860122E-11 3.139400538637796E-11

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.6   n/a MPO395448  
diameter diameter 3.489 km 0.278 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 7.67345 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 sidereal period (not synodic); Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Durech, J.; Hanus, J.; Ali-Lagoa, V. (2018) Astron. Astrophys. 617, A57.]
geometric albedo albedo 0.230   0.081 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

47144 Faulkes           Discovered 1999 Aug. 7 by J. Ticha and M. Tichy at Klet.
M. C. `Dill' Faulkes (b. 1944), originally graduated in cosmology. After a career in the software industry, he established the Dill Faulkes Educational Trust. To inspire young people he started the Faulkes Telescope Project, providing two 2-m robotic telescopes for schools, including the project involved in minor-planet astrometry.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20040504/MPCPages.arcLast Updated: 2004-05-11

Alternate Designations
 1999 PY = 1998 HL92 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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