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JPL Small-Body Database Browser
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15957 Gemoore (1998 BB27)
Classification: Main-belt Asteroid          SPK-ID: 2015957
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1101191449855724 4.5724e-08  
a 2.929026353127882 1.5911e-08 au
q 2.606484475481231 1.3499e-07 au
i 1.109355671308325 3.5779e-06 deg
node 310.8075265560966 0.00026702 deg
peri 29.72618099895437 0.00026802 deg
M 226.8318368902601 2.4891e-05 deg
tp 2459277.800278296306
(2021-Mar-04.30027830)
0.00012772 TDB
period 1830.978925388785
5.01
1.4919e-05
4.085e-08
d
yr
n .1966161352313537 1.602e-09 deg/d
Q 3.251568230774534 1.7663e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1519  
   data-arc span      13707 days (37.53 yr)  
   first obs. used      1981-10-30  
   last obs. used      2019-05-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51218  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 02:22:35  

Additional Information
 Earth MOID = 1.59702 au 
 Jupiter MOID = 2.10815 au 
 T_jup = 3.268 
[ 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 13.7   n/a MPO435848  
diameter diameter 5.345 km 0.367 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.205   0.047 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

15957 Gemoore           Discovered 1998 Jan. 22 by Spacewatch at Kitt Peak.
George Edward Moore (1873-1958) was a philosopher at Cambridge University who helped establish twentieth-century analytic philosophy. In Principia Ethica, Moore concluded that goodness is a simple, undefinable, non-natural property. The name was suggested by R. Jedicke and P. Jedicke.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20050523/MPCPages.arcLast Updated: 2005-07-21

Alternate Designations
 1998 BB27 = 1981 UA6 = 1999 FT 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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