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JPL Small-Body Database Browser
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215336 (2001 UN178)
Classification: Main-belt Asteroid          SPK-ID: 2215336
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 8 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1616542932565799 8.9848e-08  
a 2.766453537072338 2.8493e-08 au
q 2.319244445709743 2.3758e-07 au
i 9.344194331262401 6.555e-06 deg
node 81.41328939496363 4.3809e-05 deg
peri 277.0706577774335 5.2502e-05 deg
M 304.813630547605 2.4439e-05 deg
tp 2458858.139721505038
(2020-Jan-09.63972150)
0.00011541 TDB
period 1680.674062493313
4.60
2.5965e-05
7.109e-08
d
yr
n .2141997714095337 3.3092e-09 deg/d
Q 3.213662628434932 3.3099e-08 au
  Orbit Determination Parameters
   # obs. used (total)      174  
   data-arc span      6055 days (16.58 yr)  
   first obs. used      2001-09-16  
   last obs. used      2018-04-15  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .67327  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 15:42:25  

Additional Information
 Earth MOID = 1.3378 au 
 Jupiter MOID = 2.30583 au 
 T_jup = 3.301 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456559.5 (2013-Sep-24.0) TDB
Reference: JPL 8 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1649003138624424 9.0361e-08  
q 2.308503040435013 2.4083e-07 au
tp 2457176.650042274650
(2015-Jun-03.15004227)
0.00010434 TDB
node 81.50634038742339 4.393e-05 deg
peri 276.8679908630673 5.2053e-05 deg
i 9.336373049800009 6.5512e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      174  
   data-arc span      6055 days (16.58 yr)  
   first obs. used      2001-09-16  
   last obs. used      2018-04-15  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .67327  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 15:42:25  

Additional Information
 Jupiter MOID = 2.30583 au 
 T_jup = 3.301 
Orbit Covariance (6×6)
  e q tp node peri i
e 8.165119592948691E-15 -2.1685188701996E-14 -5.726763148040882E-13 -2.692786984558198E-14 -6.770796783723966E-13 -3.31492124418351E-14
q -2.1685188701996E-14 5.800140705777326E-14 1.992914983244278E-12 6.826213953708286E-14 1.877182106938311E-12 8.820260757317171E-14
tp -5.726763148040882E-13 1.992914983244278E-12 1.088638226620233E-8 -7.029463117364727E-11 2.901667132187221E-9 -3.036649024041464E-12
node -2.692786984558198E-14 6.826213953708286E-14 -7.029463117364727E-11 1.929805089627984E-9 -1.919122715396675E-9 -9.920270556601911E-11
peri -6.770796783723966E-13 1.877182106938311E-12 2.901667132187221E-9 -1.919122715396675E-9 2.709544235280395E-9 9.936063322188394E-11
i -3.31492124418351E-14 8.820260757317171E-14 -3.036649024041464E-12 -9.920270556601911E-11 9.936063322188394E-11 4.291796718700187E-11

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 16.5   n/a MPO446199  

215336 (2001 UN178)          Discovered 2001-Oct-23 by NEAT at Palomar
Reference: 20090607/Numbers.arcLast Updated: 2009-06-08

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