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 ]  
21962 Scottsandford (1999 VS203)
Classification: Main-belt Asteroid          SPK-ID: 2021962
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 30 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1734340456588454 5.6123e-08  
a 2.783403105335059 1.4341e-08 au
q 2.300666244077406 1.5499e-07 au
i 9.867705917723997 4.0872e-06 deg
node 98.5404005789009 2.681e-05 deg
peri 257.7068080590074 3.0367e-05 deg
M 204.8026292546305 1.7841e-05 deg
tp 2459931.713913757516
(2022-Dec-18.21391376)
8.6086e-05 TDB
period 1696.143482898274
4.64
1.3109e-05
3.589e-08
d
yr
n .2122461947528474 1.6404e-09 deg/d
Q 3.266139966592712 1.6828e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1451  
   data-arc span      11077 days (30.33 yr)  
   first obs. used      1990-11-08  
   last obs. used      2021-03-07  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .47669  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 03:56:22  

Additional Information
 Earth MOID = 1.3187 au 
 Jupiter MOID = 2.24293 au 
 T_jup = 3.289 
[ 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 13.97   n/a E2021B10  
diameter diameter 4.107 km 0.240 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 8.44455 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:
[Pal, A.; Szakats, R.; Kiss, C.; Bodi, A.; et al. (2019) Ap. J. Supl. Ser. 247, id.26.]
geometric albedo albedo 0.316   0.071 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

21962 Scottsandford           Discovered 1999 Nov. 9 by the Lowell Observatory Near-Earth Object Search at the Anderson Mesa Station.
Astronomer and meteoriticist Scott Alan Sandford (b. 1957), a researcher at NASA's Ames Research Center, studies the connections between interstellar chemistry and the materials, particularly organics, found in meteorites. A veteran of three Antarctic meteorite expeditions, he is a co-investigator on the STARDUST mission.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20080718/MPCPages.arcLast Updated: 2008-07-18

[ show close-approach data ]
Alternate Designations
 1999 VS203 = 1990 VP 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2021-Apr-20 11:19 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin