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4204 Barsig (1985 JG1)
Classification: Main-belt Asteroid          SPK-ID: 2004204
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 34 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08624150204469562 3.5954e-08  
a 2.268309349759569 5.3728e-09 au
q 2.072686944334277 8.1198e-08 au
i 3.815949232194577 3.3136e-06 deg
node 222.6806702555857 4.5053e-05 deg
peri 323.3522053729372 4.7093e-05 deg
M 186.2625861027174 1.4304e-05 deg
tp 2459802.702706660741
(2022-Aug-11.20270666)
5.0098e-05 TDB
period 1247.819738620259
3.42
4.4334e-06
1.214e-08
d
yr
n .2885032099252249 1.025e-09 deg/d
Q 2.463931755184861 5.8361e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2987  
   data-arc span      24423 days (66.87 yr)  
   first obs. used      1954-04-02  
   last obs. used      2021-02-12  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .40446  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-12 16:03:53  

Additional Information
 Earth MOID = 1.07428 au 
 Jupiter MOID = 2.49882 au 
 T_jup = 3.607 
[ 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 13.14   n/a MPCxxxxx  
diameter diameter 5.813 km 0.085 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 2.2663 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Published Reference List:
[Behrend, R. (2006) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
geometric albedo albedo 0.332   0.042 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

4204 Barsig (1985 JG1)          Discovered 1985-May-11 by Shoemaker, C. S. at Palomar
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 1985 JG1 = 1978 JK2 = 1979 SO3 = 1988 CO6 = 1988 DK1 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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