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JPL Small-Body Database Browser
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4209 Briggs (1986 TG4)
Classification: Main-belt Asteroid          SPK-ID: 2004209
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 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 28 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08254419230098549 6.8712e-08  
a 3.158284775397847 2.2542e-08 au
q 2.897586709556133 2.2002e-07 au
i 21.59828697196922 7.6766e-06 deg
node 330.1918823950617 1.0531e-05 deg
peri 12.56061554287281 2.5939e-05 deg
M 301.1533072777294 2.4554e-05 deg
tp 2458935.615809050218
(2020-Mar-27.11580905)
0.00014082 TDB
period 2050.101470059702
5.61
2.1949e-05
6.009e-08
d
yr
n .1756010642680609 1.88e-09 deg/d
Q 3.418982841239562 2.4403e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1918  
   data-arc span      18304 days (50.11 yr)  
   first obs. used      1969-09-19  
   last obs. used      2019-10-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .41485  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-07 02:33:54  

Additional Information
 Earth MOID = 1.88977 au 
 Jupiter MOID = 1.96496 au 
 T_jup = 3.091 
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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 11.3   n/a MPO435738  
diameter diameter 31.303 km 0.128 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
rotation period rot_per 12.22 h n/a LCDB (Rev. 2019-January); Warner et al., 2009 Published Reference List:
[Warner, B.D. (2004) Minor Planet Bull. 31, 19-22.]
[Warner, B.D. (2011) Minor Planet Bull. 38, 96-101.]
[Hanus, J.; Broz, M.; Durech, J.; Warner, B.D.; et al. (2013) Astron. Astrophys. 559, A134.]
geometric albedo albedo 0.093   0.012 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  

4209 Briggs (1986 TG4)          Discovered 1986-Oct-04 by Helin, E. at Palomar
Reference: DISCOVERY.DBLast Updated: 2003-08-29

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Alternate Designations
 1986 TG4 = 1969 SB = 1978 EL8 = 1986 WD5 = 1989 CO4 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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