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 ]  
49671 (1999 RP46)
Classification: Main-belt Asteroid          SPK-ID: 2049671
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1018450531568586 3.9344e-08  
a 3.002793825819055 1.9833e-08 au
q 2.696974129009427 1.2023e-07 au
i 9.571932432110968 5.2316e-06 deg
node 291.3920929942676 2.9795e-05 deg
peri 124.0494450821193 4.31e-05 deg
M 195.1415614658214 3.0705e-05 deg
tp 2459470.852897597007
(2021-Sep-13.35289760)
0.00016503 TDB
period 1900.582377953089
5.20
1.883e-05
5.155e-08
d
yr
n .1894156255345884 1.8766e-09 deg/d
Q 3.308613522628684 2.1853e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1335  
   data-arc span      23511 days (64.37 yr)  
   first obs. used      1954-12-22  
   last obs. used      2019-05-06  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51281  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 04:41:04  

Additional Information
 Earth MOID = 1.72325 au 
 Jupiter MOID = 2.00226 au 
 T_jup = 3.223 
[ 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 13.1   n/a MPO351184  
diameter diameter 11.061 km 3.113 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2016AJ....152...63N)  
rotation period rot_per 700.072 h n/a LCDB (Rev. 2019-January); 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.]
geometric albedo albedo 0.083   0.075 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2016AJ....152...63N)  

49671 (1999 RP46)          Discovered 1999-Sep-07 by LINEAR at Socorro
Reference: 20021120/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1999 RP46 = 2000 RB55 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2020-Jan-20 15:44 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin