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18584 (1997 YB2)
Classification: Main-belt Asteroid          SPK-ID: 2018584
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 32 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1074775610354471 2.9708e-08  
a 2.231598046112358 6.6742e-09 au
q 1.991751330904733 6.6406e-08 au
i 1.849730801981626 3.4179e-06 deg
node 281.0347502914032 0.00010411 deg
peri 350.5427123647078 0.00010582 deg
M 216.0095044797948 2.1584e-05 deg
tp 2459883.527754299928
(2022-Oct-31.02775430)
7.4027e-05 TDB
period 1217.649754690726
3.33
5.4626e-06
1.496e-08
d
yr
n .2956515193414031 1.3263e-09 deg/d
Q 2.471444761319983 7.3915e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1760  
   data-arc span      10579 days (28.96 yr)  
   first obs. used      1992-04-05  
   last obs. used      2021-03-23  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .5017  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 18:01:44  

Additional Information
 Earth MOID = .975423 au 
 Jupiter MOID = 2.5992 au 
 T_jup = 3.633 
[ 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 14.97   n/a MPCxxxxx  
rotation period rot_per 26.159 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Result based on fragmentary lightcurve(s), may be completely wrong.
Published Reference List:
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]

18584 (1997 YB2)          Discovered 1997-Dec-21 by Kobayashi, T. at Oizumi
Reference: 20001111/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1997 YB2 = 1992 GQ6 = 1996 PT6 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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