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160035 (1998 WQ27)
Classification: Main-belt Asteroid          SPK-ID: 2160035
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1422216225607459 5.465e-08  
a 2.360631706981433 1.167e-08 au
q 2.02489883534619 1.287e-07 au
i 2.786067410735662 5.3342e-06 deg
node 44.48133798010134 0.00012397 deg
peri 108.8407892659574 0.00012566 deg
M 299.0898823037355 1.99e-05 deg
tp 2459424.644310167371
(2021-Jul-29.14431017)
7.3822e-05 TDB
period 1324.770903622835
3.63
9.8241e-06
2.69e-08
d
yr
n .2717450987302878 2.0152e-09 deg/d
Q 2.696364578616676 1.333e-08 au
  Orbit Determination Parameters
   # obs. used (total)      327  
   data-arc span      9120 days (24.97 yr)  
   first obs. used      1996-01-25  
   last obs. used      2021-01-13  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .53581  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 19:59:38  

Additional Information
 Earth MOID = 1.03695 au 
 Jupiter MOID = 2.29344 au 
 T_jup = 3.536 
[ 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 17.27   n/a MPCxxxxx  
rotation period rot_per 2.13 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:
[Erasmus, N.; McNeill, A.; Mommert, M.; Trilling, D.E.; et al. (2018) Ap. J. Suppl. Series 237, A19.]
[Erasmus, N.; McNeill, A.; Mommert, N.; Trilling, D.E.; et al. (2019) Ap. J. Suppl. Series 242, A15.]

160035 (1998 WQ27)          Discovered 1998-Nov-18 by Spacewatch at Kitt Peak
Reference: 20070730/Numbers.arcLast Updated: 2007-08-06

Alternate Designations
 1998 WQ27 = 2000 HC16 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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