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15492 Nyberg (1999 CG89)
Classification: Main-belt Asteroid          SPK-ID: 2015492
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 34 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1820399795918715 3.4161e-08  
a 2.427450184798974 5.7642e-09 au
q 1.985557202697884 8.3749e-08 au
i 2.135072906736256 3.6272e-06 deg
node 341.2382385480307 7.6058e-05 deg
peri 45.93676920110139 7.6492e-05 deg
M 8.6798309485708 7.2884e-06 deg
tp 2459167.193217405304
(2020-Nov-13.69321741)
2.7964e-05 TDB
period 1381.414200937273
3.78
4.9204e-06
1.347e-08
d
yr
n .2606025041263832 9.2824e-10 deg/d
Q 2.869343166900064 6.8135e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1971  
   data-arc span      24923 days (68.24 yr)  
   first obs. used      1952-12-11  
   last obs. used      2021-03-07  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .47179  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 01:00:02  

Additional Information
 Earth MOID = .989454 au 
 Jupiter MOID = 2.58632 au 
 T_jup = 3.486 
[ show covariance matrix ]

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 14.82   n/a E2021B10  
diameter diameter 7.317 km 0.071 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 8.256 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:
[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.]
[Durech, J.; Hanus, J.; Ali-Lagoa, V. (2018) Astron. Astrophys. 617, A57.]
geometric albedo albedo 0.045   0.008 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

15492 Nyberg           Discovered 1999 Feb. 10 by the Lincoln Laboratory Near-Earth Asteroid Research Team at Socorro.
Michael Herbert Nyberg (b. 1985) was named a finalist in the 2003 Intel Science Talent Search, a science competition for high school seniors, for his engineering project. He attends the Lyme-Old Lyme High School, Old Lyme, Connecticut.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20030216/MPCPages.arcLast Updated: 2011-11-22

[ show close-approach data ]
Alternate Designations
 1999 CG89 = 1980 BD6 = 1982 QU1 = 1986 TX9 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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