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249487 (2009 UP87)
Classification: Main-belt Asteroid          SPK-ID: 2249487
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1451313591580376 4.1959e-08  
a 2.685634632643201 1.8862e-08 au
q 2.295864828205796 1.0873e-07 au
i 10.67604798769719 4.5883e-06 deg
node 235.1496766711298 2.3798e-05 deg
peri 256.7716529656536 3.0283e-05 deg
M 169.3997850712509 1.9435e-05 deg
tp 2458640.051834180532
(2019-Jun-05.55183418)
8.2412e-05 TDB
period 1607.566028377591
4.40
1.6936e-05
4.637e-08
d
yr
n .2239410348595908 2.3592e-09 deg/d
Q 3.075404437080606 2.16e-08 au
  Orbit Determination Parameters
   # obs. used (total)      379  
   data-arc span      7550 days (20.67 yr)  
   first obs. used      2000-11-30  
   last obs. used      2021-08-02  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .54731  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Aug-25 22:36:53  

Additional Information
 Earth MOID = 1.339 au 
 Jupiter MOID = 2.11789 au 
 T_jup = 3.335 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457803.5 (2017-Feb-19.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .14692134921039 4.1998e-08  
q 2.288305299085533 1.0907e-07 au
tp 2457034.738070790427
(2015-Jan-12.23807079)
7.4121e-05 TDB
node 235.2257442367274 2.3777e-05 deg
peri 256.4086674610056 3.0108e-05 deg
i 10.68675585220536 4.5915e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      379  
   data-arc span      7550 days (20.67 yr)  
   first obs. used      2000-11-30  
   last obs. used      2021-08-02  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .54731  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Aug-25 22:36:53  

Additional Information
 Jupiter MOID = 2.11789 au 
 T_jup = 3.335 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.763855781153132E-15 -4.535058064499678E-15 3.604729955843589E-13 5.848065847760872E-15 4.148100238019158E-14 -4.605053036337249E-15
q -4.535058064499678E-15 1.189681984218012E-14 -5.825514059108065E-13 -1.742068008870526E-14 2.85258305654443E-15 1.254928870579257E-14
tp 3.604729955843589E-13 -5.825514059108065E-13 5.493928117827098E-9 -1.451545076325316E-11 1.381151249482528E-9 -5.816632844345088E-13
node 5.848065847760872E-15 -1.742068008870526E-14 -1.451545076325316E-11 5.653290360558592E-10 -5.591352022792221E-10 -1.25806433130549E-11
peri 4.148100238019158E-14 2.85258305654443E-15 1.381151249482528E-9 -5.591352022792221E-10 9.065112941688397E-10 1.240178429550311E-11
i -4.605053036337249E-15 1.254928870579257E-14 -5.816632844345088E-13 -1.25806433130549E-11 1.240178429550311E-11 2.108168754198047E-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 16.07   n/a MPO638353  
diameter diameter 3.648 km 0.208 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.070   0.023 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

249487 (2009 UP87)          Discovered 2009-Oct-24 by Spacewatch at Kitt Peak
Reference: 20100824/Numbers.arcLast Updated: 2010-08-27
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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