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 ]  
49146 (1998 SN48)
Classification: Main-belt Asteroid          SPK-ID: 2049146
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 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1903187304271343 3.3462e-08  
a 2.622346424558847 1.0736e-08 au
q 2.123264782296673 9.0293e-08 au
i 1.628654407506536 5.003e-06 deg
node 6.124069157194165 0.00012783 deg
peri 82.18818565457974 0.00012859 deg
M 351.2549472229734 1.3816e-05 deg
tp 2459038.178487093621
(2020-Jul-07.67848709)
5.9626e-05 TDB
period 1551.077586328271
4.25
9.525e-06
2.608e-08
d
yr
n .2320967069430718 1.4253e-09 deg/d
Q 3.121428066821022 1.2779e-08 au
  Orbit Determination Parameters
   # obs. used (total)      922  
   data-arc span      9464 days (25.91 yr)  
   first obs. used      1994-11-27  
   last obs. used      2020-10-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .50344  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 23:34:05  

Additional Information
 Earth MOID = 1.14043 au 
 Jupiter MOID = 2.09242 au 
 T_jup = 3.378 
[ 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 15.2   n/a MPO493204  
diameter diameter 5.573 km 0.233 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.047   0.012 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

49146 (1998 SN48)          Discovered 1998-Sep-27 by Spacewatch at Kitt Peak
Reference: 20021120/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1998 SN48 = 1994 WL11 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2021-Jan-23 12:01 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin