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JPL Small-Body Database Browser
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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 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1080715975100113 3.1182e-08  
a 2.231703625286862 7.7243e-09 au
q 1.990519849333227 7.089e-08 au
i 1.849666416355805 3.6852e-06 deg
node 281.0339566165973 0.00012767 deg
peri 350.6072604496861 0.00012943 deg
M 340.569260396571 2.2385e-05 deg
tp 2458666.226428854895
(2019-Jul-01.72642885)
7.5782e-05 TDB
period 1217.736168086301
3.33
6.3222e-06
1.731e-08
d
yr
n .2956305392207804 1.5348e-09 deg/d
Q 2.472887401240496 8.5591e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1520  
   data-arc span      10087 days (27.62 yr)  
   first obs. used      1992-04-05  
   last obs. used      2019-11-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52226  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-14 00:29:44  

Additional Information
 Earth MOID = .973824 au 
 Jupiter MOID = 2.60038 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 15.0   n/a MPO439222  
rotation period rot_per 26.159 h n/a LCDB (Rev. 2019-January); 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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