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 ]  
49107 (1998 SG1)
Classification: Main-belt Asteroid          SPK-ID: 2049107
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1894501086266894 4.3403e-08  
a 2.578065328184248 1.126e-08 au
q 2.08965057171304 1.1324e-07 au
i 2.257001776841002 5.0385e-06 deg
node 177.0174983090552 0.00012293 deg
peri 271.7951122226843 0.000124 deg
M 37.055180203967 1.3485e-05 deg
tp 2458844.872717871234
(2019-Dec-27.37271787)
5.6626e-05 TDB
period 1511.956526940805
4.14
9.9054e-06
2.712e-08
d
yr
n .2381020840118999 1.5599e-09 deg/d
Q 3.066480084655455 1.3393e-08 au
  Orbit Determination Parameters
   # obs. used (total)      757  
   data-arc span      17950 days (49.14 yr)  
   first obs. used      1971-03-25  
   last obs. used      2020-05-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5446  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 23:34:15  

Additional Information
 Earth MOID = 1.10756 au 
 Jupiter MOID = 2.14782 au 
 T_jup = 3.400 
[ 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 15.8   n/a MPO412508  

49107 (1998 SG1)          Discovered 1998-Sep-16 by ODAS at Caussols
Reference: 20021120/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1998 SG1 = 1094 T-2 = 1998 UA39 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2020-Nov-30 06:09 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin