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 ]  
2074 Shoemaker (1974 UA)
Classification: Mars-crossing Asteroid          SPK-ID: 2002074
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 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08177560536615938 4.3245e-08  
a 1.799749046739784 4.5048e-09 au
q 1.65257347893547 7.7777e-08 au
i 30.07424062544611 5.0513e-06 deg
node 207.2725288929051 6.9169e-06 deg
peri 205.5664532761868 2.8127e-05 deg
M 291.6704612563635 2.9374e-05 deg
tp 2459167.887238067745
(2020-Nov-14.38723807)
7.2112e-05 TDB
period 881.8939336100854
2.41
3.3111e-06
9.065e-09
d
yr
n .4082123555678839 1.5327e-09 deg/d
Q 1.946924614544098 4.8732e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1724  
   data-arc span      24171 days (66.18 yr)  
   first obs. used      1954-04-08  
   last obs. used      2020-06-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .38633  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jun-23 15:40:46  

Additional Information
 Earth MOID = .668718 au 
 Jupiter MOID = 3.29324 au 
 T_jup = 3.906 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456991.5 (2014-Nov-30.0) TDB
Reference: JPL 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08190105517996295 4.3261e-08  
q 1.652302412796421 7.7838e-08 au
tp 2457403.685706432955
(2016-Jan-16.18570643)
7.0631e-05 TDB
node 207.3015323380792 6.9167e-06 deg
peri 205.4165355597502 2.8083e-05 deg
i 30.07552493500636 5.0515e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1724  
   data-arc span      24171 days (66.18 yr)  
   first obs. used      1954-04-08  
   last obs. used      2020-06-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .38633  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jun-23 15:40:46  

Additional Information
 Jupiter MOID = 3.29324 au 
 T_jup = 3.906 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.871535715656645E-15 -3.362638096809222E-15 -1.355335035116599E-12 -9.928299067343143E-15 -4.894239104525937E-13 3.184313353028161E-15
q -3.362638096809222E-15 6.058698378945961E-15 2.487069768483902E-12 1.75821981084267E-14 8.95780333661218E-13 -5.48149318103181E-15
tp -1.355335035116599E-12 2.487069768483902E-12 4.988720597469794E-9 -5.88476292120742E-13 1.926549592250045E-9 1.231198215806638E-11
node -9.928299067343143E-15 1.75821981084267E-14 -5.88476292120742E-13 4.784091170538505E-11 -4.092688334232175E-11 -1.090195275481538E-12
peri -4.894239104525937E-13 8.95780333661218E-13 1.926549592250045E-9 -4.092688334232175E-11 7.886272431423915E-10 6.166776268389877E-12
i 3.184313353028161E-15 -5.48149318103181E-15 1.231198215806638E-11 -1.090195275481538E-12 6.166776268389877E-12 2.551728424392873E-11

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.0   n/a MPO473792  
diameter diameter 3.189 km 0.330 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2016AJ....152...63N)  
rotation period rot_per 2.5328 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Published Reference List:
[Warner, B.D.; Stephens, R.D.; Harris, A.W.; Pravec, P. (2009) Minor Planet Bull. 36, 176-178.]
[Warner, B.D. (2011) Minor Planet Bull. 38, 33-36.]
[Klinglesmith III, D.A.; Hendrickx, S.; Madden, K.; Montgomery, S. (2016) Minor Planet Bull. 43, 123-128.]
[Warner, B.D. (2018) Minor Planet Bull. 45, 39-45.]
geometric albedo albedo 0.491   0.191 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2016AJ....152...63N)  
SMASSII spectral type spec_B Sa   n/a Xu et al. (1995) Icarus 115, 1-35  

2074 Shoemaker (1974 UA)          Discovered 1974-Oct-17 by Helin, E. F. at Palomar
Reference: DISCOVERY.DBLast Updated: 2003-08-29
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2020-Jul-11 12:28 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin