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27115 (1998 WG3)
Classification: Main-belt Asteroid          SPK-ID: 2027115
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .005491664249966384 4.4475e-08  
a 2.754664949969033 1.5981e-08 au
q 2.739537254942652 1.2299e-07 au
i 3.155297984629508 4.2862e-06 deg
node 265.7524846344634 8.9635e-05 deg
peri 92.24833192451558 0.00041191 deg
M 343.6703062479309 0.00040331 deg
tp 2459076.249041331962
(2020-Aug-14.74904133)
0.0018709 TDB
period 1669.942822782643
4.57
1.4532e-05
3.979e-08
d
yr
n .2155762431435397 1.876e-09 deg/d
Q 2.769792644995413 1.6069e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1185  
   data-arc span      9307 days (25.48 yr)  
   first obs. used      1993-11-11  
   last obs. used      2019-05-06  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54963  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 03:26:54  

Additional Information
 Earth MOID = 1.73127 au 
 Jupiter MOID = 2.23165 au 
 T_jup = 3.342 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456060.5 (2012-May-13.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .008063937853497457 4.5392e-08  
q 2.735277729471513 1.2609e-07 au
tp 2455792.380112656164
(2011-Aug-18.88011266)
0.0012413 TDB
node 265.8165182841543 8.9791e-05 deg
peri 104.7670340099321 0.0002818 deg
i 3.150654722674212 4.2844e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1185  
   data-arc span      9307 days (25.48 yr)  
   first obs. used      1993-11-11  
   last obs. used      2019-05-06  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54963  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 03:26:54  

Additional Information
 Jupiter MOID = 2.23165 au 
 T_jup = 3.342 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.060402192607377E-15 -5.678671876720012E-15 2.234801193091614E-12 1.760210617857409E-15 4.437422689273752E-13 1.314893901340544E-16
q -5.678671876720012E-15 1.589804946112077E-14 -3.48297072964686E-12 -7.362184651457912E-15 -6.380813830792495E-13 -3.562203153878241E-16
tp 2.234801193091614E-12 -3.48297072964686E-12 1.54083561157486E-6 -4.031929006517398E-11 3.316003954740567E-7 -1.066566433858765E-12
node 1.760210617857409E-15 -7.362184651457912E-15 -4.031929006517398E-11 8.062446314728108E-9 -8.058603208010568E-9 -3.933285677100033E-11
peri 4.437422689273752E-13 -6.380813830792495E-13 3.316003954740567E-7 -8.058603208010568E-9 7.941194135425165E-8 3.90335292662071E-11
i 1.314893901340544E-16 -3.562203153878241E-16 -1.066566433858765E-12 -3.933285677100033E-11 3.90335292662071E-11 1.835645628884896E-11

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.0   n/a MPO347725  
diameter diameter 8.883 km 0.179 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 1.35 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 lower-limit; Incomplete or inconclusive result.
Published Reference List:
[Erasmus, N.; McNeill, A.; Mommert, N.; Trilling, D.E.; et al. (2019) Ap. J. Suppl. Series 242, A15.]
geometric albedo albedo 0.068   0.006 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

27115 (1998 WG3)          Discovered 1998-Nov-19 by Kobayashi, T. at Oizumi
Reference: 20010804/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1998 WG3 = 1993 VM4 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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