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49668 (1999 OP2)
Classification: Inner Main-belt Asteroid          SPK-ID: 2049668
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 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08747779634310018 4.8457e-08  
a 1.922628250621407 6.059e-09 au
q 1.754440968070056 9.2571e-08 au
i 19.91654951260174 7.4649e-06 deg
node 303.1926749863508 1.2087e-05 deg
peri 127.4220253135628 4.7953e-05 deg
M 79.88553301456093 4.3642e-05 deg
tp 2458384.423745800747
(2018-Sep-22.92374580)
0.00011805 TDB
period 973.7364022789013
2.67
4.603e-06
1.26e-08
d
yr
n .3697099124131208 1.7477e-09 deg/d
Q 2.090815533172757 6.589e-09 au
  Orbit Determination Parameters
   # obs. used (total)      979  
   data-arc span      11786 days (32.27 yr)  
   first obs. used      1987-01-30  
   last obs. used      2019-05-08  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .4619  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 04:41:03  

Additional Information
 Earth MOID = .808807 au 
 Jupiter MOID = 3.08628 au 
 T_jup = 3.845 
[ 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 15.4   n/a MPO474377  
rotation period rot_per 2.072 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.]

49668 (1999 OP2)          Discovered 1999-Jul-22 by LINEAR at Socorro
Reference: 20021120/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1999 OP2 = 1987 BU2 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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