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 ]  
49184 (1998 SW73)
Classification: Main-belt Asteroid          SPK-ID: 2049184
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ hide orbit diagram ]

For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


[ revert to old Java-based viewer ]

Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1379197790828826 5.7556e-08  
a 2.307284472101268 7.3791e-09 au
q 1.989064307427696 1.334e-07 au
i 8.057149521434756 7.3944e-06 deg
node 35.03922518678043 2.4533e-05 deg
peri 284.6239151984838 3.8874e-05 deg
M 111.1614222394235 3.0511e-05 deg
tp 2458605.222826198474
(2019-May-01.72282620)
0.00010869 TDB
period 1280.118405304846
3.50
6.141e-06
1.681e-08
d
yr
n .2812239856158229 1.3491e-09 deg/d
Q 2.62550463677484 8.3968e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1489  
   data-arc span      15450 days (42.30 yr)  
   first obs. used      1977-10-18  
   last obs. used      2020-02-05  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .48276  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 09:21:40  

Additional Information
 Earth MOID = .995163 au 
 Jupiter MOID = 2.68295 au 
 T_jup = 3.561 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457058.5 (2015-Feb-05.0) TDB
Reference: JPL 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1385558979665336 5.7904e-08  
q 1.987037272757681 1.3437e-07 au
tp 2457326.085423845798
(2015-Oct-30.58542385)
0.00010903 TDB
node 35.05590162444991 2.452e-05 deg
peri 284.8314099240542 3.8746e-05 deg
i 8.060937958628339 7.398e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1489  
   data-arc span      15450 days (42.30 yr)  
   first obs. used      1977-10-18  
   last obs. used      2020-02-05  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .48276  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 09:21:40  

Additional Information
 Jupiter MOID = 2.68295 au 
 T_jup = 3.561 
Orbit Covariance (6×6)
  e q tp node peri i
e 3.352897462414489E-15 -7.771659052124249E-15 5.114717846062837E-12 9.312415655754644E-16 1.352513166393677E-12 -8.531165413543845E-15
q -7.771659052124249E-15 1.805434237122318E-14 -1.193676705921948E-11 -3.012645652991856E-15 -3.160322941065923E-12 2.029919195802023E-14
tp 5.114717846062837E-12 -1.193676705921948E-11 1.188674569369388E-8 1.02104002273399E-11 3.27456651486415E-9 -2.182855100042352E-11
node 9.312415655754644E-16 -3.012645652991856E-15 1.02104002273399E-11 6.012144736793024E-10 -5.917095011646621E-10 -8.578927675118547E-11
peri 1.352513166393677E-12 -3.160322941065923E-12 3.27456651486415E-9 -5.917095011646621E-10 1.501279530783221E-9 7.89066056163213E-11
i -8.531165413543845E-15 2.029919195802023E-14 -2.182855100042352E-11 -8.578927675118547E-11 7.89066056163213E-11 5.473069715141432E-11

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 14.4   n/a MPO449315  

49184 (1998 SW73)          Discovered 1998-Sep-21 by Elst, E. W. at La Silla
Reference: 20021120/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1998 SW73 = 1977 UG3 = 1991 RO27 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2020-Apr-04 00:43 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin