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118277 (1998 QE105)
Classification: Main-belt Asteroid          SPK-ID: 2118277
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 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1781578297898761 3.517e-08  
a 2.233431333554361 1.1421e-08 au
q 1.835528054183607 7.6514e-08 au
i 8.236115801156423 3.6571e-06 deg
node 125.5366472911953 2.9559e-05 deg
peri 202.3378964593583 3.1698e-05 deg
M 256.0209316267706 1.2547e-05 deg
tp 2459552.628158163331
(2021-Dec-04.12815816)
4.3569e-05 TDB
period 1219.15053598842
3.34
9.3516e-06
2.56e-08
d
yr
n .2952875706264869 2.265e-09 deg/d
Q 2.631334612925114 1.3456e-08 au
  Orbit Determination Parameters
   # obs. used (total)      612  
   data-arc span      8206 days (22.47 yr)  
   first obs. used      1998-08-25  
   last obs. used      2021-02-11  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .48949  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 16:56:30  

Additional Information
 Earth MOID = .824454 au 
 Jupiter MOID = 2.70041 au 
 T_jup = 3.606 
[ 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 16.41   n/a E2021B55  
rotation period rot_per 40.2431 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Pal, A.; Szakats, R.; Kiss, C.; Bodi, A.; et al. (2019) Ap. J. Supl. Ser. 247, id.26.]

118277 (1998 QE105)          Discovered 1998-Aug-25 by Elst, E. W. at La Silla
Reference: 20051116/Numbers.arcLast Updated: 2005-11-21

Alternate Designations
 1998 QE105 = 2001 LT14 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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