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

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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.


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 
[ 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 15.20   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 ]
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