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 ]  
27129 (1998 XN1)
Classification: Main-belt Asteroid          SPK-ID: 2027129
[ 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 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09034471607816874 4.8079e-08  
a 2.937098068984714 1.9262e-08 au
q 2.671746777848552 1.4252e-07 au
i 17.43638323147654 5.0729e-06 deg
node 66.23808621048029 1.6602e-05 deg
peri 266.9270219275265 3.5466e-05 deg
M 172.5640614254588 3.4532e-05 deg
tp 2458119.199632153287
(2017-Dec-31.69963215)		 0.00017379 TDB
period 1838.552765877411
5.03		 1.8086e-05
4.952e-08		 d
yr
n .1958061833641187 1.9262e-09 deg/d
Q 3.202449360120875 2.1002e-08 au
   Orbit Determination Parameters
   # obs. used (total)      839  
   data-arc span      15038 days (41.17 yr)  
   first obs. used      1978-11-29  
   last obs. used      2020-01-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .60026  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 00:57:30  

Additional Information
 Earth MOID = 1.7322 au 
 Jupiter MOID = 2.11782 au 
 T_jup = 3.199 
[ 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 14.4   n/a MPO459046  
diameter diameter 7.880 km 0.189 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.059   0.006 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

27129 (1998 XN1)          Discovered 1998-Dec-07 by ODAS at Caussols
Reference: 20010804/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1998 XN1 = 1978 WW6 = 2001 KN60 
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2020-Apr-06 13:24 UT
(server date/time)   		NASA Home Page
Site Manager:   Ryan S. Park
Webmaster:   Alan B. Chamberlin