Skip Page Navigation
NASA JPL Caltech
NASA Logo - Jet Propulsion Laboratory + View the NASA Portal
+ Center for Near-Earth Object Studies
JPL Home Earth Solar System Stars & Galaxies Technology
JPL Solar System Dynamics
BODIES ORBITS EPHEMERIDES TOOLS PHYSICAL DATA DISCOVERY FAQ SITE MAP
JPL Small-Body Database Browser
Search: [ help ]  
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 2459000.5 (2020-May-31.0) TDB
Reference: JPL 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1098619670511212 4.1249e-08  
a 2.932628284280187 1.5079e-08 au
q 2.610443972339411 1.2304e-07 au
i 1.109596107071243 3.5168e-06 deg
node 310.7668977582152 0.00025624 deg
peri 29.09528270632343 0.00025715 deg
M 306.0704506093569 2.305e-05 deg
tp 2459275.294632809489
(2021-Mar-01.79463281)
0.00011783 TDB
period 1834.357396440251
5.02
1.4148e-05
3.874e-08
d
yr
n .1962540128213918 1.5136e-09 deg/d
Q 3.254812596220963 1.6735e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1636  
   data-arc span      14236 days (38.98 yr)  
   first obs. used      1981-10-30  
   last obs. used      2020-10-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .50832  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 02:30:19  

Additional Information
 Earth MOID = 1.60173 au 
 Jupiter MOID = 2.10443 au 
 T_jup = 3.266 
[ 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 13.8   n/a MPO473980  
diameter diameter 5.345 km 0.367 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 17.02 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.-H.; Lin, H.-W.; Ip, W.-H.; Chen, W.-P.; et al. (2019) Ap. J. Supp. Ser. 241, A6.]
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 ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2021-Jan-23 21:34 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin