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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 ]

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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 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 46 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1341374567835687 1.082e-08  
a 2.922843763815278 9.918e-09 au
q 2.530780934761383 3.0369e-08 au
i 10.87033745196473 8.1702e-07 deg
node 85.77358816818989 1.8025e-06 deg
peri 295.6469521261462 9.4544e-06 deg
M 78.71520461714896 7.7098e-06 deg
tp 2458997.417249297286
(2020-May-27.91724930)
3.8975e-05 TDB
period 1825.184739743114
5.00
9.2901e-06
2.543e-08
d
yr
n .197240307877365 1.0039e-09 deg/d
Q 3.314906592869173 1.1248e-08 au
  Orbit Determination Parameters
   # obs. used (total)      3524  
   data-arc span      41712 days (114.20 yr)  
   first obs. used      1907-03-07  
   last obs. used      2021-05-19  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .39155  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Aug-25 07:17:39  

Additional Information
 Earth MOID = 1.55713 au 
 Jupiter MOID = 2.18423 au 
 T_jup = 3.239 
[ show covariance matrix ]

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

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

Alternate Designations
 1925 WD = 1962 DD = A907 EA 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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