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18250 (3178 T-2)
Classification: Main-belt Asteroid          SPK-ID: 2018250
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 28 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07047147912736401 4.4929e-08  
a 2.880095393746843 1.3409e-08 au
q 2.677130811321595 1.2908e-07 au
i 3.166371963027885 4.7285e-06 deg
node 29.56301391505551 6.861e-05 deg
peri 348.5741877794392 7.2944e-05 deg
M 220.3290957880414 2.5318e-05 deg
tp 2459893.147354319083
(2022-Nov-09.64735432)
0.00012629 TDB
period 1785.289849462578
4.89
1.2468e-05
3.414e-08
d
yr
n .2016479285469359 1.4082e-09 deg/d
Q 3.083059976172091 1.4354e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1526  
   data-arc span      17988 days (49.25 yr)  
   first obs. used      1971-03-24  
   last obs. used      2020-06-22  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .51734  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 02:25:43  

Additional Information
 Earth MOID = 1.67748 au 
 Jupiter MOID = 2.27322 au 
 T_jup = 3.289 
[ 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 13.95   n/a E2021B10  
diameter diameter 4.356 km 1.003 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.177   0.063 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

18250 (3178 T-2)          Discovered 1973-Sep-30 by van Houten, C. J., van Houten-Groeneveld, I., Gehrels, T. at Palomar
Reference: 20001013/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 3178 T-2 = 1988 VP11 = 2150 T-1 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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