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1054 Forsytia (1925 WD)
Classification: Main-belt Asteroid          SPK-ID: 2001054
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 39 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .133819011437723 3.2515e-08  
a 2.921521533705007 1.0898e-08 au
q 2.530566410170583 9.5335e-08 au
i 10.87179645949824 4.039e-06 deg
node 85.77268241693601 1.834e-05 deg
peri 295.5370048513993 2.3688e-05 deg
M .6979980959588463 1.4786e-05 deg
tp 2458996.963580296547
(2020-May-27.46358030)
7.4912e-05 TDB
period 1823.946369788255
4.99
1.0205e-05
2.794e-08
d
yr
n .1973742243538625 1.1044e-09 deg/d
Q 3.312476657239431 1.2356e-08 au
  Orbit Determination Parameters
   # obs. used (total)      3184  
   data-arc span      41526 days (113.69 yr)  
   first obs. used      1907-03-07  
   last obs. used      2020-11-14  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .40403  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Dec-18 01:58:00  

Additional Information
 Earth MOID = 1.55764 au 
 Jupiter MOID = 2.18483 au 
 T_jup = 3.240 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456423.5 (2013-May-11.0) TDB
Reference: JPL 39 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1369975885616147 3.2715e-08  
q 2.521555567759162 9.6139e-08 au
tp 2457162.626736542350
(2015-May-20.12673654)
7.1694e-05 TDB
node 85.95403093800948 1.842e-05 deg
peri 293.8115819136934 2.3393e-05 deg
i 10.85088144743031 4.0311e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      3184  
   data-arc span      41526 days (113.69 yr)  
   first obs. used      1907-03-07  
   last obs. used      2020-11-14  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .40403  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Dec-18 01:58:00  

Additional Information
 Jupiter MOID = 2.18483 au 
 T_jup = 3.240 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.07025351725704E-15 -3.130292772670238E-15 5.387362670408101E-13 -3.182054849444178E-15 9.879407991937729E-14 1.159901543975616E-15
q -3.130292772670238E-15 9.242636711559124E-15 -1.571577182631925E-12 9.470332324962646E-15 -2.96983862509498E-13 -2.948967929644894E-15
tp 5.387362670408101E-13 -1.571577182631925E-12 5.140037580412373E-9 -1.739251567049897E-11 1.045379594502751E-9 1.253751911837721E-12
node -3.182054849444178E-15 9.470332324962646E-15 -1.739251567049897E-11 3.392893080300149E-10 -3.363060350519893E-10 -8.69190359654354E-12
peri 9.879407991937729E-14 -2.96983862509498E-13 1.045379594502751E-9 -3.363060350519893E-10 5.472190753518756E-10 8.714407717448724E-12
i 1.159901543975616E-15 -2.948967929644894E-15 1.253751911837721E-12 -8.69190359654354E-12 8.714407717448724E-12 1.624941112179194E-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 10.4   n/a MPO400003  
diameter diameter 47.780 km 3.344 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
rotation period rot_per 7.650 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Published Reference List:
[Gross, J. (2003) Minor Planet Bull. 30, 44-46.]
geometric albedo albedo 0.035   0.013 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  

1054 Forsytia (1925 WD)          Discovered 1925-Nov-20 by Reinmuth, K. at Heidelberg
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 1925 WD = 1962 DD = A907 EA 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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