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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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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.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 37 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1338190104072937 3.2756e-08  
a 2.921521534475497 1.122e-08 au
q 2.530566413848388 9.634e-08 au
i 10.8717966621487 4.0511e-06 deg
node 85.77268495057191 1.8717e-05 deg
peri 295.5370029563872 2.4027e-05 deg
M .6979971504822788 1.507e-05 deg
tp 2458996.963585085421
(2020-May-27.46358509)
7.6351e-05 TDB
period 1823.946370509797
4.99
1.0507e-05
2.877e-08
d
yr
n .1973742242757824 1.137e-09 deg/d
Q 3.312476655102607 1.2722e-08 au
  Orbit Determination Parameters
   # obs. used (total)      3161  
   data-arc span      41512 days (113.65 yr)  
   first obs. used      1907-03-07  
   last obs. used      2020-10-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .4051  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 04:23:00  

Additional Information
 Earth MOID = 1.55764 au 
 Jupiter MOID = 2.18483 au 
 T_jup = 3.240 
[ 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 10.4   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. 2019-August); 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

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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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