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 ]  
101167 (1998 SW2)
Classification: Main-belt Asteroid          SPK-ID: 2101167
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1693801430902417 1.0532e-07  
a 2.305609148296596 1.0453e-08 au
q 1.915084740847948 2.4448e-07 au
i 24.32764969033296 4.9396e-06 deg
node 297.9370118297738 1.4586e-05 deg
peri 64.79669911482421 2.2844e-05 deg
M 127.7016461273569 1.357e-05 deg
tp 2458746.902187305379
(2019-Sep-20.40218731)
4.7802e-05 TDB
period 1278.724413679124
3.50
8.6958e-06
2.381e-08
d
yr
n .2815305597898254 1.9145e-09 deg/d
Q 2.696133555745244 1.2223e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1524  
   data-arc span      8245 days (22.57 yr)  
   first obs. used      1998-08-25  
   last obs. used      2021-03-22  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .35684  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-04 08:32:39  

Additional Information
 Earth MOID = .996278 au 
 Jupiter MOID = 2.82976 au 
 T_jup = 3.452 
[ hide covariance matrix ]
Orbital Elements at Epoch 2458129.5 (2018-Jan-11.0) TDB
Reference: JPL 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .169685437751268 1.0564e-07  
q 1.91420030653527 2.4547e-07 au
tp 2458746.194063747277
(2019-Sep-19.69406375)
4.7385e-05 TDB
node 297.9900434825399 1.4593e-05 deg
peri 64.59566814598146 2.2711e-05 deg
i 24.31764153610741 4.9393e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1524  
   data-arc span      8245 days (22.57 yr)  
   first obs. used      1998-08-25  
   last obs. used      2021-03-22  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .35684  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-04 08:32:39  

Additional Information
 Jupiter MOID = 2.82976 au 
 T_jup = 3.452 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.115911520408868E-14 -2.591456007839185E-14 -2.725093134343834E-12 -2.909580533833997E-14 -1.246595099993146E-12 -1.696181105353402E-13
q -2.591456007839185E-14 6.025338740610727E-14 6.336103410480817E-12 6.896236188262335E-14 2.884482171257813E-12 3.949065955866854E-13
tp -2.725093134343834E-12 6.336103410480817E-12 2.245335904334074E-9 6.865732133657073E-12 8.444998989667759E-10 3.849025865534288E-11
node -2.909580533833997E-14 6.896236188262335E-14 6.865732133657073E-12 2.129533905143395E-10 -1.920274790269261E-10 3.283252867575883E-11
peri -1.246595099993146E-12 2.884482171257813E-12 8.444998989667759E-10 -1.920274790269261E-10 5.158075086954895E-10 -1.212044308671382E-11
i -1.696181105353402E-13 3.949065955866854E-13 3.849025865534288E-11 3.283252867575883E-11 -1.212044308671382E-11 2.439676467968819E-11

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.20   n/a MPCxxxxx  
diameter diameter 2.841 km 0.803 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.263   0.132 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

101167 (1998 SW2)          Discovered 1998-Sep-19 by CSS at Catalina
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2021-May-10 01:51 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin