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(2019 UN12)
Classification: Apollo [NEO, PHA]          SPK-ID: 3888754
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .84189314491376 2.7224e-06  
a 2.268456517469968 2.9922e-05 au
q .3586585258770609 1.479e-06 au
i 4.962243324864645 2.3897e-05 deg
node 226.3733037696549 2.0794e-05 deg
peri 297.8378751862492 4.7163e-05 deg
M 45.40679840022447 0.00086422 deg
tp 2458843.097184734001
(2019-Dec-25.59718473)
0.00011881 TDB
period 1247.941178241707
3.42
0.024691
6.76e-05
d
yr
n .2884751351079092 5.7076e-06 deg/d
Q 4.178254509062874 5.5112e-05 au
  Orbit Determination Parameters
   # obs. used (total)      103  
   # delay obs. used      1  
   # Doppler obs. used      1  
   data-arc span      21 days  
   first obs. used      2019-10-23  
   last obs. used      2019-11-13  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      4  
   norm. resid. RMS      .28143  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Oct-12 07:25:36  

Additional Information
 Earth MOID = .00682058 au 
 Jupiter MOID = .917247 au 
 T_jup = 3.004 
[ hide covariance matrix ]
Orbital Elements at Epoch 2458788.5 (2019-Nov-01.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .8419967609330142 2.7235e-06  
q .3591517741941503 1.4805e-06 au
tp 2458843.085853568449
(2019-Dec-25.58585357)
0.00011879 TDB
node 226.4208190766775 2.0674e-05 deg
peri 297.7284734177737 4.7342e-05 deg
i 4.992010936669018 2.3845e-05 deg
  Orbit Determination Parameters
   # obs. used (total)      103  
   # delay obs. used      1  
   # Doppler obs. used      1  
   data-arc span      21 days  
   first obs. used      2019-10-23  
   last obs. used      2019-11-13  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      4  
   norm. resid. RMS      .28143  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Oct-12 07:25:36  

Additional Information
 Jupiter MOID = .917247 au 
 T_jup = 3.004 
Orbit Covariance (6×6)
  e q tp node peri i
e 7.417200480961364E-12 -3.961002461727778E-12 -3.234815750536886E-10 3.868418196073485E-11 7.656412112346764E-11 3.539102889333553E-11
q -3.961002461727778E-12 2.191741893010764E-12 1.732382726548592E-10 -2.130150810695229E-11 -5.059341901975761E-11 -1.816408918015484E-11
tp -3.234815750536886E-10 1.732382726548592E-10 1.411163524855271E-8 -1.687247862272811E-9 -3.405484130369519E-9 -1.544223368137491E-9
node 3.868418196073485E-11 -2.130150810695229E-11 -1.687247862272811E-9 4.274327427955811E-10 2.616103484761715E-10 3.399181575156495E-10
peri 7.656412112346764E-11 -5.059341901975761E-11 -3.405484130369519E-9 2.616103484761715E-10 2.241277414985328E-9 1.118228896307715E-10
i 3.539102889333553E-11 -1.816408918015484E-11 -1.544223368137491E-9 3.399181575156495E-10 1.118228896307715E-10 5.685788525798856E-10

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 22.0   .34168 E2019-VI7 autocmod 2.8

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]
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