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 ]  
30650 (7638 P-L)
Classification: Main-belt Asteroid          SPK-ID: 2030650
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 30 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1283561857551354 2.5743e-08  
a 2.558455952883214 8.9768e-09 au
q 2.230062305348604 6.5822e-08 au
i 7.488684424426136 3.7498e-06 deg
node 160.2381515326187 2.2496e-05 deg
peri 256.531070353023 2.7885e-05 deg
M 216.4465942702203 1.7876e-05 deg
tp 2459796.541286073520
(2022-Aug-05.04128607)
7.5929e-05 TDB
period 1494.738922393637
4.09
7.8668e-06
2.154e-08
d
yr
n .2408447352287483 1.2676e-09 deg/d
Q 2.886849600417823 1.0129e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2062  
   data-arc span      21873 days (59.89 yr)  
   first obs. used      1960-10-17  
   last obs. used      2020-09-05  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .49598  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 06:38:55  

Additional Information
 Earth MOID = 1.25488 au 
 Jupiter MOID = 2.46411 au 
 T_jup = 3.413 
[ 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 14.35   n/a MPCxxxxx  
rotation period rot_per 6.784 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.]
[Pal, A.; Szakats, R.; Kiss, C.; Bodi, A.; et al. (2019) Ap. J. Supl. Ser. 247, id.26.]

30650 (7638 P-L)          Discovered 1960-Oct-17 by van Houten, C. J., van Houten-Groeneveld, I., Gehrels, T. at Palomar
Reference: 20011002/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 7638 P-L = 1999 FJ46 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2021-Jun-14 22:47 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin