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441522 (2008 SX181)
Classification: Main-belt Asteroid          SPK-ID: 2441522
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 8 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1516952071220414 8.4158e-08  
a 2.418804402683826 2.1064e-08 au
q 2.051883367830998 2.0819e-07 au
i 2.082643705665883 9.8985e-06 deg
node 141.7845258405347 0.00017453 deg
peri 196.7322136624267 0.00019941 deg
M 73.72568449759552 7.2226e-05 deg
tp 2458719.105331226693
(2019-Aug-23.60533123)
0.00027778 TDB
period 1374.040559253056
3.76
1.7949e-05
4.914e-08
d
yr
n .2620009995889059 3.4225e-09 deg/d
Q 2.785725437536655 2.426e-08 au
  Orbit Determination Parameters
   # obs. used (total)      79  
   data-arc span      5501 days (15.06 yr)  
   first obs. used      2004-09-10  
   last obs. used      2019-10-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56173  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-08 15:57:17  

Additional Information
 Earth MOID = 1.04288 au 
 Jupiter MOID = 2.58411 au 
 T_jup = 3.498 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457417.5 (2016-Jan-30.0) TDB
Reference: JPL 8 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .152997028996566 8.4321e-08  
q 2.048463475866313 2.0917e-07 au
tp 2457345.507588531053
(2015-Nov-19.00758853)
0.00028404 TDB
node 141.8342356840078 0.00017456 deg
peri 196.770364099453 0.00019891 deg
i 2.082714803675087 9.9011e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      79  
   data-arc span      5501 days (15.06 yr)  
   first obs. used      2004-09-10  
   last obs. used      2019-10-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56173  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-08 15:57:17  

Additional Information
 Jupiter MOID = 2.58411 au 
 T_jup = 3.498 
Orbit Covariance (6×6)
  e q tp node peri i
e 7.110005003895378E-15 -1.757405328545147E-14 1.909527217054791E-12 1.980888631161615E-14 6.38722313068607E-13 -9.56506805127712E-15
q -1.757405328545147E-14 4.37514550222319E-14 -7.910894684454882E-12 -6.878987489895303E-14 -2.642395764158694E-12 2.501403008997267E-14
tp 1.909527217054791E-12 -7.910894684454882E-12 8.067656891601255E-8 4.960287019536818E-10 2.711021401039129E-8 -2.46222814214937E-11
node 1.980888631161615E-14 -6.878987489895303E-14 4.960287019536818E-10 3.047272042084096E-8 -3.028120669710079E-8 2.740791726184949E-10
peri 6.38722313068607E-13 -2.642395764158694E-12 2.711021401039129E-8 -3.028120669710079E-8 3.95659186548279E-8 -2.822920625634661E-10
i -9.56506805127712E-15 2.501403008997267E-14 -2.46222814214937E-11 2.740791726184949E-10 -2.822920625634661E-10 9.803201842662069E-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 18.1   n/a MPO495187  

441522 (2008 SX181)          Discovered 2008-Sep-24 by Mt. Lemmon Survey at Mount Lemmon
Reference: Last Updated: 2015-09-02

Alternate Designations
 2008 SX181 = 2004 RC243 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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