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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 ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 41 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1340057752655611 3.2022e-08  
a 2.922247460926335 1.023e-08 au
q 2.530649424407084 9.3306e-08 au
i 10.87130282005378 4.0324e-06 deg
node 85.77456290137027 1.7098e-05 deg
peri 295.5852094998629 2.2596e-05 deg
M 40.11875831183388 1.4219e-05 deg
tp 2458997.161837789633
(2020-May-27.66183779)
7.2078e-05 TDB
period 1824.626221648036
5.00
9.5809e-06
2.623e-08
d
yr
n .1973006831365393 1.036e-09 deg/d
Q 3.313845497445587 1.16e-08 au
  Orbit Determination Parameters
   # obs. used (total)      3321  
   data-arc span      41594 days (113.88 yr)  
   first obs. used      1907-03-07  
   last obs. used      2021-01-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .39881  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 00:52:05  

Additional Information
 Earth MOID = 1.5565 au 
 Jupiter MOID = 2.1844 au 
 T_jup = 3.239 
[ show covariance matrix ]

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 10.48   n/a E2021B10  
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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