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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 ]

[ 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 .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
(2022-Sep-11.09086652)
0.00081613 TDB
period 1779.350663466076
4.87
1.6367e-05
4.481e-08
d
yr
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 
[ hide covariance matrix ]
Orbital Elements at Epoch 2455945.5 (2012-Jan-19.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .01758447739011085 4.4435e-08  
q 2.821455566643594 1.2874e-07 au
tp 2456338.421291744377
(2013-Feb-14.92129174)
0.00075685 TDB
node 45.5518373031251 9.4552e-05 deg
peri 32.7779642823017 0.00018094 deg
i 2.966931161917139 5.3007e-06 deg
  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
 Jupiter MOID = 2.10657 au 
 T_jup = 3.295 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.974440330581536E-15 -5.666045008265355E-15 -3.906634608928977E-12 1.034383204471435E-15 -8.242193559378691E-13 -3.076830634343164E-16
q -5.666045008265355E-15 1.657490623304033E-14 1.122528453748284E-11 -3.39110655107826E-15 2.355576470089876E-12 1.011122969114632E-15
tp -3.906634608928977E-12 1.122528453748284E-11 5.728262295592975E-7 3.282187102976398E-12 1.167874610747719E-7 -7.666155376346051E-12
node 1.034383204471435E-15 -3.39110655107826E-15 3.282187102976398E-12 8.940104418028006E-9 -8.926840455325021E-9 -5.263015618203954E-11
peri -8.242193559378691E-13 2.355576470089876E-12 1.167874610747719E-7 -8.926840455325021E-9 3.273972855065926E-8 5.100396446694045E-11
i -3.076830634343164E-16 1.011122969114632E-15 -7.666155376346051E-12 -5.263015618203954E-11 5.100396446694045E-11 2.809745330710825E-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 14.7   n/a MPO299155  
diameter diameter 3.475 km 0.674 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
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] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  

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

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