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27502 Stephbecca (2000 GR137)
Classification: Main-belt Asteroid          SPK-ID: 2027502
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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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.

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .01601902903983038 4.5545e-08  
a 2.873704304371942 1.7622e-08 au
q 2.827670351668323 1.3173e-07 au
i 2.95899018944852 5.2905e-06 deg
node 45.43824227934098 9.4942e-05 deg
peri 20.07022109936964 0.00019089 deg
M 191.4482254092533 0.00016495 deg
tp 2459833.590866517860
0.00081613 TDB
period 1779.350663466076
n .2023209968622711 1.861e-09 deg/d
Q 2.919738257075562 1.7905e-08 au
  Orbit Determination Parameters
   # obs. used (total)      971  
   data-arc span      14743 days (40.36 yr)  
   first obs. used      1978-11-29  
   last obs. used      2019-04-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53915  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 01:03:55  

Additional Information
 Earth MOID = 1.84 au 
 Jupiter MOID = 2.10657 au 
 T_jup = 3.295 
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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 14.7   n/a MPO299155  
diameter diameter 3.475 km 0.674 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (  
rotation period rot_per 6.96 h n/a LCDB (Rev. 2019-August); 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:
[Chang, C.K.; Ip, W.-H.; Lin, H.-W.; Cheng, Y.C.; et al. (2015) Astrophys. J. Supp. Ser. 219, A27.]
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]
geometric albedo albedo 0.211   0.094 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (  

27502 Stephbecca           Discovered 2000 Apr. 3 by L. H. Wasserman at the Anderson Mesa Station of the Lowell Observatory.
Stephanie E. Wasserman (b. 1977) and Rebecca N. Wasserman (b. 1979) are the two daughters of the discoverer.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20020328/MPCPages.arcLast Updated: 2003-10-02

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Close-Approach Data   ...sorted by Date/Time (TDB)
Date/Time (TDB) Time Uncertainty
Body Nominal Distance (au) Minimum Distance (au) Maximum Distance (au) V-relative (km/s) V-infinity (km/s) JD (TDB) Time Uncertainty (minutes) Semi-major axis (km) Semi-minor axis (km) range-LOV angle (deg) N-sigma BP Orbit Ref. Reference Modified
1950-Oct-31 08:10 00:03 Europ 0.0377557986298988 0.0377483599752293 0.0377632387942197 2.79979940305063 2.79979930250548 2433585.840463582 2.60470701450739 529.092527164181 34.8316147829572 45.67538451958 116085.554108654 T 20 CATAB v2.0e-lin.ifort 2019-Jul-13 01:04:00 2019-Jul-13 01:04

Alternate Designations
 2000 GR137 = 1978 WF9 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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