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504033 (2005 UN157)
Classification: Apollo [NEO]          SPK-ID: 2504033
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .8559737216020404 3.8412e-07  
a 2.516833044653903 6.0408e-08 au
q .3624900967705072 9.6718e-07 au
i 44.47010191818287 0.00012735 deg
node 21.64971945767413 1.7479e-05 deg
peri 210.0227589711868 7.0689e-05 deg
M 322.9218250523752 8.2151e-05 deg
tp 2459350.708976329297
(2021-May-16.20897633)
0.00033475 TDB
period 1458.411358027501
3.99
5.2506e-05
1.438e-07
d
yr
n .2468439360530621 8.887e-09 deg/d
Q 4.671175992537298 1.1212e-07 au
  Orbit Determination Parameters
   # obs. used (total)      80  
   data-arc span      4373 days (11.97 yr)  
   first obs. used      2005-10-29  
   last obs. used      2017-10-19  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      1  
   norm. resid. RMS      .65374  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-14 18:18:13  

Additional Information
 Earth MOID = .419088 au 
 Jupiter MOID = 1.36685 au 
 T_jup = 2.581 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456504.5 (2013-Jul-31.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .8557605807395702 3.8466e-07  
q .3630795181999708 9.685e-07 au
tp 2456434.384880690544
(2013-May-21.88488069)
0.00031037 TDB
node 21.6817504497922 1.749e-05 deg
peri 209.9912850697881 7.0649e-05 deg
i 44.49705169343019 0.00012737 deg
  Orbit Determination Parameters
   # obs. used (total)      80  
   data-arc span      4373 days (11.97 yr)  
   first obs. used      2005-10-29  
   last obs. used      2017-10-19  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      1  
   norm. resid. RMS      .65374  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-14 18:18:13  

Additional Information
 Jupiter MOID = 1.36685 au 
 T_jup = 2.581 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.479637808696185E-13 -3.725283581090941E-13 2.150760161140189E-11 -3.527318335185283E-13 -1.912283929718204E-11 2.182845404485694E-12
q -3.725283581090941E-13 9.379912594633417E-13 -5.387840683086772E-11 8.713927557430247E-13 4.820893490438906E-11 -5.439319147474506E-12
tp 2.150760161140189E-11 -5.387840683086772E-11 9.632733093059015E-8 2.911192264148969E-10 1.17476627266973E-8 -9.447826995603974E-9
node -3.527318335185283E-13 8.713927557430247E-13 2.911192264148969E-10 3.058855087496216E-10 -1.261947991033521E-10 -1.406831478876463E-9
peri -1.912283929718204E-11 4.820893490438906E-11 1.17476627266973E-8 -1.261947991033521E-10 4.991296199035952E-9 -7.347184708611769E-10
i 2.182845404485694E-12 -5.439319147474506E-12 -9.447826995603974E-9 -1.406831478876463E-9 -7.347184708611769E-10 1.622304784547529E-8

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 18.3   n/a MPO428210  

504033 (2005 UN157)          Discovered 2005-Oct-29 by Mt. Lemmon Survey at Mount Lemmon
Reference: Last Updated: 2017-11-07

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Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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