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15312 (1993 FH27)
Classification: Main-belt Asteroid          SPK-ID: 2015312
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 31 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1439076453373877 4.441e-08  
a 2.739607927189139 1.4723e-08 au
q 2.345357401239708 1.2532e-07 au
i 5.842197932452621 5.119e-06 deg
node 339.2805879902947 3.4275e-05 deg
peri 23.12589542626869 3.6757e-05 deg
M 180.3439274475633 1.5151e-05 deg
tp 2459827.052509451214
(2022-Sep-04.55250945)		 7.3152e-05 TDB
period 1656.269666674294
4.53		 1.3352e-05
3.656e-08		 d
yr
n .2173559096344872 1.7522e-09 deg/d
Q 3.133858453138569 1.6842e-08 au
   Orbit Determination Parameters
   # obs. used (total)      1420  
   data-arc span      23966 days (65.62 yr)  
   first obs. used      1954-10-06  
   last obs. used      2020-05-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53752  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 02:34:27  

Additional Information
 Earth MOID = 1.34366 au 
 Jupiter MOID = 2.3231 au 
 T_jup = 3.328 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457033.5 (2015-Jan-11.0) TDB
Reference: JPL 31 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .141055092348364 4.4138e-08  
q 2.356687335459335 1.241e-07 au
tp 2456510.150061204574
(2013-Aug-05.65006120)		 6.4484e-05 TDB
node 339.3240147566948 3.4262e-05 deg
peri 22.82175981105723 3.6876e-05 deg
i 5.841727680158731 5.1145e-06 deg
   Orbit Determination Parameters
   # obs. used (total)      1420  
   data-arc span      23966 days (65.62 yr)  
   first obs. used      1954-10-06  
   last obs. used      2020-05-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53752  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 02:34:27  

Additional Information
 Jupiter MOID = 2.3231 au 
 T_jup = 3.328 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.948158520453744E-15 -5.450536552596138E-15 -5.05087426782694E-13 6.860785383520971E-15 -1.458837770741311E-13 -7.975672765998223E-16
q -5.450536552596138E-15 1.540075719603789E-14 1.553493638350579E-12 -2.021851696302993E-14 4.454957602339665E-13 2.141284845705232E-15
tp -5.05087426782694E-13 1.553493638350579E-12 4.158179266439708E-9 -4.666693856232221E-12 8.863064331107089E-10 -7.83922256673323E-13
node 6.860785383520971E-15 -2.021851696302993E-14 -4.666693856232221E-12 1.173870937681342E-9 -1.168687888425859E-9 1.259362637276688E-11
peri -1.458837770741311E-13 4.454957602339665E-13 8.863064331107089E-10 -1.168687888425859E-9 1.359844802800212E-9 -1.268541335645542E-11
i -7.975672765998223E-16 2.141284845705232E-15 -7.83922256673323E-13 1.259362637276688E-11 -1.268541335645542E-11 2.615828489587767E-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 14.37   n/a E2021B10  
diameter diameter 8.841 km 0.027 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 149.383 h n/a LCDB (Rev. 2020-October); 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.]
geometric albedo albedo 0.067   0.009 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

15312 (1993 FH27)          Discovered 1993-Mar-21 by UESAC at La Silla
Reference: 20000621/Numbers.arcLast Updated: 2004-04-19

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Alternate Designations
 1993 FH27 = 1995 WR6 
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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