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
IMPORTANT: The SSD Announcement email list is now available. Major changes are coming in the near future, including possible hostname and/or URL changes. To be notified of such changes, subscribe to this email list.

Please visit this page for more details.


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 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08177561039165426 4.5245e-08  
a 1.79974904905212 4.6275e-09 au
q 1.652573472014084 8.1551e-08 au
i 30.07424038787135 5.1088e-06 deg
node 207.2725271764418 7.2465e-06 deg
peri 205.5664216204357 2.8496e-05 deg
M 291.6704908636387 2.9641e-05 deg
tp 2459167.887165861235
(2020-Nov-14.38716586)
7.2769e-05 TDB
period 881.893935309685
2.41
3.4013e-06
9.312e-09
d
yr
n .4082123547811707 1.5744e-09 deg/d
Q 1.946924626090157 5.006e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1552  
   data-arc span      23774 days (65.09 yr)  
   first obs. used      1954-04-08  
   last obs. used      2019-05-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .38261  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-29 19:29:59  

Additional Information
 Earth MOID = .668718 au 
 Jupiter MOID = 3.29324 au 
 T_jup = 3.906 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456811.5 (2014-Jun-03.0) TDB
Reference: JPL 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08194457325705397 4.5257e-08  
q 1.652187625001579 8.1612e-08 au
tp 2456521.920150691441
(2013-Aug-17.42015069)
7.0772e-05 TDB
node 207.302229590141 7.2461e-06 deg
peri 205.4423173267261 2.8442e-05 deg
i 30.07593004120351 5.109e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1552  
   data-arc span      23774 days (65.09 yr)  
   first obs. used      1954-04-08  
   last obs. used      2019-05-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .38261  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-29 19:29:59  

Additional Information
 Jupiter MOID = 3.29324 au 
 T_jup = 3.906 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.048238970857609E-15 -3.688601034162686E-15 -1.4050320775411E-12 -8.854949285830031E-15 -4.968652278683005E-13 4.55321555013099E-15
q -3.688601034162686E-15 6.660587160626255E-15 2.562859336128231E-12 1.571525176696856E-14 9.08373803859293E-13 -7.943475253775431E-15
tp -1.4050320775411E-12 2.562859336128231E-12 5.00860943425088E-9 -6.79805079577239E-12 1.951447351255891E-9 1.126901265196919E-11
node -8.854949285830031E-15 1.571525176696856E-14 -6.79805079577239E-12 5.250649959433768E-11 -4.758589331645782E-11 -7.645160527802314E-13
peri -4.968652278683005E-13 9.08373803859293E-13 1.951447351255891E-9 -4.758589331645782E-11 8.089370181341313E-10 5.640188607258348E-12
i 4.55321555013099E-15 -7.943475253775431E-15 1.126901265196919E-11 -7.645160527802314E-13 5.640188607258348E-12 2.610198006613533E-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-Feb-18 22:45 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin