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150173 (1998 DO28)
Classification: Main-belt Asteroid          SPK-ID: 2150173
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 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .03352986393919535 4.541e-08  
a 2.718946169506652 1.9122e-08 au
q 2.627780274385097 1.2863e-07 au
i 5.857895355599203 5.476e-06 deg
node 147.2130569073989 4.6769e-05 deg
peri 106.4213079376826 0.00011942 deg
M 313.3098800898723 0.00011418 deg
tp 2459412.884016386460
(2021-Jul-17.38401639)
0.00052035 TDB
period 1637.567991821347
4.48
1.7275e-05
4.73e-08
d
yr
n .2198382001834308 2.3191e-09 deg/d
Q 2.810112064628207 1.9763e-08 au
  Orbit Determination Parameters
   # obs. used (total)      511  
   data-arc span      8093 days (22.16 yr)  
   first obs. used      1998-02-23  
   last obs. used      2020-04-21  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .57624  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 19:17:26  

Additional Information
 Earth MOID = 1.61859 au 
 Jupiter MOID = 2.19411 au 
 T_jup = 3.351 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457299.5 (2015-Oct-04.0) TDB
Reference: JPL 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .03472117276844341 4.6323e-08  
q 2.626533037465578 1.3191e-07 au
tp 2457763.907747911493
(2017-Jan-10.40774791)
0.00048987 TDB
node 147.2417136100724 4.6736e-05 deg
peri 104.0405664521684 0.00011468 deg
i 5.858259674648019 5.4766e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      511  
   data-arc span      8093 days (22.16 yr)  
   first obs. used      1998-02-23  
   last obs. used      2020-04-21  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .57624  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 19:17:26  

Additional Information
 Jupiter MOID = 2.19411 au 
 T_jup = 3.351 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.145849199016926E-15 -6.052613107895327E-15 -9.886439173083748E-12 1.143000818929851E-14 -2.062096333855629E-12 2.173243897635478E-15
q -6.052613107895327E-15 1.740016166105754E-14 3.088255117833321E-11 -3.26842654756092E-14 6.442925535748337E-12 -5.737110281793636E-15
tp -9.886439173083748E-12 3.088255117833321E-11 2.399743631349853E-7 -1.664916579749476E-11 5.132201067301233E-8 4.498602856214649E-12
node 1.143000818929851E-14 -3.26842654756092E-14 -1.664916579749476E-11 2.184297118883751E-9 -2.175516415078393E-9 6.805970283334828E-11
peri -2.062096333855629E-12 6.442925535748337E-12 5.132201067301233E-8 -2.175516415078393E-9 1.315153656016327E-8 -6.664405316834782E-11
i 2.173243897635478E-15 -5.737110281793636E-15 4.498602856214649E-12 6.805970283334828E-11 -6.664405316834782E-11 2.99934388953985E-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 15.88   n/a E2021B55  
diameter diameter 4.407 km 0.426 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.044   0.015 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

150173 (1998 DO28)          Discovered 1998-Feb-26 by Spacewatch at Kitt Peak
Reference: 20070303/Numbers.arcLast Updated: 2007-03-07

Alternate Designations
 1998 DO28 = 2002 CT8 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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