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 ]  
4664 Hanner (1985 PJ)
Classification: Main-belt Asteroid          SPK-ID: 2004664
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 35 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06725432236454716 3.0667e-08  
a 2.883324387740269 1.0254e-08 au
q 2.689408359885624 8.7893e-08 au
i 1.494899378457193 3.2069e-06 deg
node 335.0087908737507 0.00013513 deg
peri 2.268654604701483 0.00013772 deg
M 68.49323832475237 2.6447e-05 deg
tp 2458860.261163930787
(2020-Jan-11.76116393)
0.00013141 TDB
period 1788.293034184837
4.90
9.5397e-06
2.612e-08
d
yr
n .2013092894275573 1.0739e-09 deg/d
Q 3.077240415594913 1.0944e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2919  
   data-arc span      25253 days (69.14 yr)  
   first obs. used      1951-11-29  
   last obs. used      2021-01-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .4319  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 01:19:31  

Additional Information
 Earth MOID = 1.67794 au 
 Jupiter MOID = 2.18406 au 
 T_jup = 3.290 
[ 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 12.54   n/a E2021B10  
rotation period rot_per 3.011 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:
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]

4664 Hanner (1985 PJ)          Discovered 1985-Aug-14 by Bowell, E. at Flagstaff
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 1985 PJ = 1978 FA = 1981 XR = 1986 XD4 = 1988 DT = 1990 QC4 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2021-Mar-07 07:55 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin