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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.


Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 39 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08180840355021178 2.3109e-08  
a 3.155472687135492 1.2476e-08 au
q 2.897328504154641 7.0537e-08 au
i 21.61079695584665 4.0973e-07 deg
node 330.1704882993947 1.5964e-06 deg
peri 13.06127859816077 1.13e-05 deg
M 46.16220035597912 9.2907e-06 deg
tp 2458937.969923075336
(2020-Mar-29.46992308)
5.2616e-05 TDB
period 2047.364011335253
5.61
1.2142e-05
3.324e-08
d
yr
n .1758358543018516 1.0428e-09 deg/d
Q 3.413616870116344 1.3496e-08 au
  Orbit Determination Parameters
   # obs. used (total)      3142  
   data-arc span      18793 days (51.45 yr)  
   first obs. used      1969-09-19  
   last obs. used      2021-03-03  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .35286  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-12 16:04:23  

Additional Information
 Earth MOID = 1.88879 au 
 Jupiter MOID = 1.97465 au 
 T_jup = 3.092 
[ 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 11.41   n/a E2020-QM5  
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. 2020-October); 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.]
[Pal, A.; Szakats, R.; Kiss, C.; Bodi, A.; et al. (2019) Ap. J. Supl. Ser. 247, id.26.]
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

[ show close-approach data ]
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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