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 ]  
22780 McAlpine (1999 FS37)
Classification: Main-belt Asteroid          SPK-ID: 2022780
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 28 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09921918190881393 3.2979e-08  
a 2.24278959950499 7.2075e-09 au
q 2.020261850248508 7.2729e-08 au
i 4.693798923312286 3.9591e-06 deg
node 27.1708956638351 4.1812e-05 deg
peri 199.0822024933887 4.6331e-05 deg
M 119.5193142464047 2.0107e-05 deg
tp 2458793.197740821499
(2019-Nov-05.69774082)
6.8267e-05 TDB
period 1226.82107263405
3.36
5.9139e-06
1.619e-08
d
yr
n .2934413241101744 1.4145e-09 deg/d
Q 2.465317348761471 7.9227e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1463  
   data-arc span      15228 days (41.69 yr)  
   first obs. used      1979-04-01  
   last obs. used      2020-12-09  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .51776  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 04:13:03  

Additional Information
 Earth MOID = 1.01039 au 
 Jupiter MOID = 2.51051 au 
 T_jup = 3.622 
[ 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 15.58   n/a E2021B10  
diameter diameter 1.868 km 0.353 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.384   0.076 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

22780 McAlpine           Discovered 1999 Mar. 20 by the Lincoln Laboratory Near-Earth Asteroid Research Team at Socorro.
Jayleen Jo McAlpine (b. 1993) is a finalist in the 2006 Discovery Channel Young Scientist Challenge (DCYSC), a middle school science competition, for her biochemistry, medicine, health, and microbiology project. She attends the Sunburst Elementary School, Sunburst, Montana.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20061009/MPCPages.arcLast Updated: 2006-10-14

Alternate Designations
 1999 FS37 = 1979 GJ 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2021-Apr-20 03:55 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin