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 ]  
15904 Halstead (1997 SD11)
Classification: Main-belt Asteroid          SPK-ID: 2015904
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 35 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .02635865290681108 4.5936e-08  
a 2.162733791887463 6.3788e-09 au
q 2.10572704253727 9.7903e-08 au
i 3.04670684814575 2.9675e-06 deg
node 242.1068824225873 8.9782e-05 deg
peri 269.2715839030311 0.00010754 deg
M 251.9206783529086 5.9848e-05 deg
tp 2459349.273223493196
(2021-May-14.77322349)
0.00019354 TDB
period 1161.724172062561
3.18
5.1396e-06
1.407e-08
d
yr
n .3098842295420648 1.371e-09 deg/d
Q 2.219740541237656 6.547e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2094  
   data-arc span      14740 days (40.36 yr)  
   first obs. used      1980-03-23  
   last obs. used      2020-07-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .48099  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Aug-25 01:02:47  

Additional Information
 Earth MOID = 1.11744 au 
 Jupiter MOID = 2.75596 au 
 T_jup = 3.693 
[ 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 14.2   n/a MPO384891  
diameter diameter 3.812 km 0.150 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.211   0.061 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

15904 Halstead           Discovered 1997 Sept. 29 by T. Stafford at the Zeno Observatory.
Susan Ruth Halstead (b. 1959) is the sister of the discoverer.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20040713/MPCPages.arcLast Updated: 2004-07-14

Alternate Designations
 1997 SD11 = 1980 FB6 = 1981 QU4 = 1998 YF 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2020-Oct-24 04:35 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin