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5720 Halweaver (1984 FN)
Classification: Mars-crossing Asteroid          SPK-ID: 2005720
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.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3067758300483244 3.8407e-08  
a 2.293706413886893 8.4836e-09 au
q 1.590052724879576 8.8869e-08 au
i 23.46533681801067 6.6169e-06 deg
node 47.7800072218642 1.1567e-05 deg
peri 82.18168719035157 1.5057e-05 deg
M 185.6945528530322 1.0839e-05 deg
tp 2459614.846840194099
(2022-Feb-04.34684019)
3.998e-05 TDB
period 1268.835059889997
3.47
7.0395e-06
1.927e-08
d
yr
n .2837248208062681 1.5741e-09 deg/d
Q 2.997360102894211 1.1086e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1492  
   data-arc span      25167 days (68.90 yr)  
   first obs. used      1951-09-04  
   last obs. used      2020-07-30  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .41143  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Aug-24 23:31:45  

Additional Information
 Earth MOID = .772737 au 
 Jupiter MOID = 2.5367 au 
 T_jup = 3.428 
[ 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 13.7   n/a MPO435753  
diameter diameter 4.293 km 0.688 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2016AJ....152...63N)  
rotation period rot_per 3.8883 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Published Reference List:
[Warner, B.D. (2008) Minor Planet Bull. 35, 67-71.]
geometric albedo albedo 0.310   0.088 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2016AJ....152...63N)  

5720 Halweaver (1984 FN)          Discovered 1984-Mar-29 by Shoemaker, C. S. at Palomar
Reference: DISCOVERY.DBLast Updated: 2003-08-29

Alternate Designations
 1984 FN = 1986 VT6 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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