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 ]  
3428 Roberts (1952 JH)
Classification: Main-belt Asteroid          SPK-ID: 2003428
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 27 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1658591179040543 3.4544e-08  
a 2.66256069190291 1.0544e-08 au
q 2.220950724177885 9.2486e-08 au
i 8.875300263680854 4.2817e-06 deg
node 230.7984543172607 2.2292e-05 deg
peri 303.4602103607 2.5448e-05 deg
M 193.7116753478825 1.3484e-05 deg
tp 2459333.505035493753
(2021-Apr-29.00503549)
6.0855e-05 TDB
period 1586.893206903151
4.34
9.4266e-06
2.581e-08
d
yr
n .2268583660412448 1.3476e-09 deg/d
Q 3.104170659627935 1.2293e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2425  
   data-arc span      24654 days (67.50 yr)  
   first obs. used      1952-05-01  
   last obs. used      2019-10-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .47731  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-07 02:25:55  

Additional Information
 Earth MOID = 1.23942 au 
 Jupiter MOID = 1.9356 au 
 T_jup = 3.348 
[ 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 12.1   n/a MPO452211  
diameter diameter 17.163 km 0.118 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 3.278 h n/a LCDB (Rev. 2019-January); Warner et al., 2009 Published Reference List:
[Oliver, R.L.; Shipley, H.; Ditteon, R. (2008) Minor Planet Bull. 35, 149-150.]
[Hanus, J.; Durech, J.; Oszkiewicz, D.A.; Behrend, R.; et al. (2016) Astron. Astrophys. 586, A108.]
geometric albedo albedo 0.095   0.012 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

3428 Roberts (1952 JH)          Discovered 1952-May-01 by Goethe Link Observatory at Brooklyn
Discovered by the Indiana Asteroid Program, Goethe Link Observatory, University of Indiana. This program was conceived and directed by F. K. Edmondson; the plates were blinked and measured astrometrically by B. Potter and, following her retirement, by D. Owings; and the photometry was performed under the direction of T. Gehrels. During the years 1947-1967, in which the plates were exposed, a large number of people participated in various aspects of the program.
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 1952 JH = 1952 KB = 1972 YQ1 = 1978 JH2 = 1980 TD15 = 1982 FR1 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin