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30711 (4186 T-3)
Classification: Main-belt Asteroid          SPK-ID: 2030711
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .0661359803064582 3.7304e-08  
a 2.281919576343977 9.0326e-09 au
q 2.13100258818197 8.6017e-08 au
i 5.497322057493339 3.9914e-06 deg
node 131.9019722575333 4.3768e-05 deg
peri 51.3998494807221 5.3642e-05 deg
M 27.34160133180381 3.071e-05 deg
tp 2459104.875236542607
(2020-Sep-12.37523654)
0.00010733 TDB
period 1259.06725165429
3.45
7.4757e-06
2.047e-08
d
yr
n .2859259499657351 1.6977e-09 deg/d
Q 2.432836564505984 9.6299e-09 au
  Orbit Determination Parameters
   # obs. used (total)      855  
   data-arc span      15563 days (42.61 yr)  
   first obs. used      1977-10-11  
   last obs. used      2020-05-21  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .57606  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 06:39:22  

Additional Information
 Earth MOID = 1.13827 au 
 Jupiter MOID = 2.52982 au 
 T_jup = 3.596 
[ 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 15.83   n/a E2021B10  
diameter diameter 1.970 km 0.250 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.455   0.088 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

30711 (4186 T-3)          Discovered 1977-Oct-16 by van Houten, C. J., van Houten-Groeneveld, I., Gehrels, T. at Palomar
Reference: 20011002/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 4186 T-3 = 2000 GR161 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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