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213048 (1998 SE99)
Classification: Main-belt Asteroid          SPK-ID: 2213048
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1810234769183597 3.9407e-08  
a 2.619128929172073 1.4e-08 au
q 2.145005103915884 1.0333e-07 au
i 8.50134565658125 4.9698e-06 deg
node 193.8716760425858 2.285e-05 deg
peri 202.5708085063013 2.6616e-05 deg
M 68.13603470412018 1.2449e-05 deg
tp 2458907.472690302664
(2020-Feb-27.97269030)
5.2721e-05 TDB
period 1548.223813568386
4.24
1.2414e-05
3.399e-08
d
yr
n .2325245205796589 1.8644e-09 deg/d
Q 3.093252754428261 1.6534e-08 au
  Orbit Determination Parameters
   # obs. used (total)      503  
   data-arc span      8241 days (22.56 yr)  
   first obs. used      1998-09-15  
   last obs. used      2021-04-08  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .45281  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-04 10:39:13  

Additional Information
 Earth MOID = 1.15302 au 
 Jupiter MOID = 2.34685 au 
 T_jup = 3.367 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457882.5 (2017-May-09.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1808809809411694 3.9814e-08  
q 2.145719356884524 1.0444e-07 au
tp 2457354.398930229141
(2015-Nov-27.89893023)
4.9633e-05 TDB
node 193.9569433580869 2.278e-05 deg
peri 201.6436437197757 2.6554e-05 deg
i 8.511762673510781 4.9796e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      503  
   data-arc span      8241 days (22.56 yr)  
   first obs. used      1998-09-15  
   last obs. used      2021-04-08  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .45281  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-04 10:39:13  

Additional Information
 Jupiter MOID = 2.34685 au 
 T_jup = 3.367 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.585177201482753E-15 -4.132649195754665E-15 -7.669582836684564E-13 5.895740794780285E-15 -1.853891265200245E-13 -2.134966380010586E-16
q -4.132649195754665E-15 1.090816627596913E-14 2.089600286401815E-12 -1.59677178963303E-14 5.199413317341592E-13 6.539371235464168E-16
tp -7.669582836684564E-13 2.089600286401815E-12 2.463417111373801E-9 -8.303118208069384E-12 6.827925859900775E-10 4.973051310824976E-13
node 5.895740794780285E-15 -1.59677178963303E-14 -8.303118208069384E-12 5.189155921260701E-10 -5.149400207077796E-10 -2.117950949457993E-11
peri -1.853891265200245E-13 5.199413317341592E-13 6.827925859900775E-10 -5.149400207077796E-10 7.051309557502636E-10 2.10834046972021E-11
i -2.134966380010586E-16 6.539371235464168E-16 4.973051310824976E-13 -2.117950949457993E-11 2.10834046972021E-11 2.479679568115513E-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 16.41   n/a MPCxxxxx  

213048 (1998 SE99)          Discovered 1998-Sep-26 by LINEAR at Socorro
Reference: 20090509/Numbers.arcLast Updated: 2009-05-11

Alternate Designations
 1998 SE99 = 2002 PK123 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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