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18484 (1995 YB3)
Classification: Main-belt Asteroid          SPK-ID: 2018484
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1714181649244834 3.1073e-08  
a 3.105832764738775 1.5493e-08 au
q 2.57343661164492 9.4857e-08 au
i 2.636710694970362 3.675e-06 deg
node 96.68159798423962 7.6196e-05 deg
peri 343.1810554382657 7.6962e-05 deg
M 233.315223304024 1.2571e-05 deg
tp 2459904.037833649800
(2022-Nov-20.53783365)
7.3173e-05 TDB
period 1999.242740283985
5.47
1.4959e-05
4.096e-08
d
yr
n .180068179189118 1.3474e-09 deg/d
Q 3.638228917832631 1.8149e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1703  
   data-arc span      30556 days (83.66 yr)  
   first obs. used      1935-12-21  
   last obs. used      2019-08-18  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .51024  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 02:29:55  

Additional Information
 Earth MOID = 1.58889 au 
 Jupiter MOID = 1.61365 au 
 T_jup = 3.196 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456537.5 (2013-Sep-02.0) TDB
Reference: JPL 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1781423270274829 3.1547e-08  
q 2.54057686479785 9.723e-08 au
tp 2455919.683368337164
(2011-Dec-24.18336834)
5.5568e-05 TDB
node 96.71125539492151 7.6192e-05 deg
peri 342.4473293394248 7.6877e-05 deg
i 2.640609919373184 3.6826e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1703  
   data-arc span      30556 days (83.66 yr)  
   first obs. used      1935-12-21  
   last obs. used      2019-08-18  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .51024  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 02:29:55  

Additional Information
 Jupiter MOID = 1.61365 au 
 T_jup = 3.196 
Orbit Covariance (6×6)
  e q tp node peri i
e 9.951929970884924E-16 -3.04320548050437E-15 8.341711995469521E-14 -6.54203881201852E-17 9.498814457921622E-15 -4.909195322329015E-17
q -3.04320548050437E-15 9.453593257817762E-15 -6.163078764283813E-14 1.236202304807565E-15 1.258002141502516E-14 1.549971968672195E-16
tp 8.341711995469521E-14 -6.163078764283813E-14 3.087797505549925E-9 1.91436789555755E-13 5.851344111033129E-10 -8.046273629839213E-14
node -6.54203881201852E-17 1.236202304807565E-15 1.91436789555755E-13 5.805221240721996E-9 -5.798670581226858E-9 1.58074614478926E-12
peri 9.498814457921622E-15 1.258002141502516E-14 5.851344111033129E-10 -5.798670581226858E-9 5.910086883879051E-9 -1.59795070636315E-12
i -4.909195322329015E-17 1.549971968672195E-16 -8.046273629839213E-14 1.58074614478926E-12 -1.59795070636315E-12 1.356146186921799E-11

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 13.54   n/a MPCxxxxx  
diameter diameter 9.920 km 0.214 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.078   0.007 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

18484 (1995 YB3)          Discovered 1995-Dec-27 by JPL/GEODSS NEAT at Haleakala
Reference: 20001111/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1995 YB3 = 1935 YE = 1984 YR = 1989 VG6 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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