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3920 Aubignan (1948 WF)
Classification: Mars-crossing Asteroid          SPK-ID: 2003920
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

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Orbit Diagram
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Note: This Java-based orbit viewer will eventually be retired.

Note: Make sure you have Java enabled on your browser to see the applet. This applet is provided as a 3D orbit visualization tool. The applet 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. For accurate long-term ephemerides, please instead use our Horizons system.

Note: If the applet is not working, here are some notes that might help.
Orbit Viewer

Additional Notes: the orbits shown in the applet are color coded. The planets are white lines, and the asteroid/comet is a blue line. The bright white line indicates the portion of the orbit that is above the ecliptic plane, and the darker portion is below the ecliptic plane. Likewise for the asteroid/comet orbit, the light blue indicates the portion above the ecliptic plane, and the dark blue the portion below the ecliptic plane.

Orbit Viewer applet originally written and kindly provided by Osamu Ajiki (AstroArts), and further modified by Ron Baalke (JPL).

Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 41 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2712642683586325 3.1329e-08  
a 2.254855439911185 6.243e-09 au
q 1.643193728749195 6.9881e-08 au
i 9.041487592047069 3.627e-06 deg
node 116.3524864410661 2.4822e-05 deg
peri 237.646457087137 2.5928e-05 deg
M 96.31687964051258 8.5367e-06 deg
tp 2458669.615527917227
2.8993e-05 TDB
period 1236.734520412088
n .2910891497393035 1.2089e-09 deg/d
Q 2.866517151073175 7.9365e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2411  
   data-arc span      26270 days (71.92 yr)  
   first obs. used      1948-11-28  
   last obs. used      2020-10-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .4349  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 03:56:01  

Additional Information
 Earth MOID = .658123 au 
 Jupiter MOID = 2.60334 au 
 T_jup = 3.559 
[ 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 13.0   n/a MPO347553  
diameter diameter 5.956 km 1.308 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (  
rotation period rot_per 4.4762 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Published Reference List:
[Li, B.; Zhao, H.; Han, X.L.; Liu, W.; et al. (2013) Minor Planet Bull. 40, 43-44.]
[Simpson, G.; Chong, E.; Gerhardt, M.; Gorsky, S.; et al. (2013) Minor Planet Bull. 146-151.]
geometric albedo albedo 0.339   0.192 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (  
SMASSII spectral type spec_B Sa   n/a EAR-A-5-DDR-TAXONOMY-V4.0 based on a high-resolution spectrum by Xu et al. (1995) or Bus and Binzel (2002)

3920 Aubignan (1948 WF)          Discovered 1948-Nov-28 by Arend, S. at Uccle
Reference: DISCOVERY.DBLast Updated: 2003-08-29

Alternate Designations
 1948 WF = 1934 NW = 1934 PU = 1975 XC4 = 1978 NE2 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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