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46541 (1984 SM6)
Classification: Main-belt Asteroid          SPK-ID: 2046541
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 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1368038455719554 5.6617e-08  
a 2.970648929959364 2.1953e-08 au
q 2.564252732496708 1.661e-07 au
i 11.93347120231896 6.0021e-06 deg
node 168.7411044023067 2.2176e-05 deg
peri 245.5100753739574 3.1658e-05 deg
M 307.7019666601306 2.0363e-05 deg
tp 2459272.180381768530
(2021-Feb-26.68038177)
0.00010596 TDB
period 1870.145609512035
5.12
2.073e-05
5.676e-08
d
yr
n .1924983798956342 2.1338e-09 deg/d
Q 3.377045127422019 2.4956e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1055  
   data-arc span      12348 days (33.81 yr)  
   first obs. used      1984-09-23  
   last obs. used      2018-07-15  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56667  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 02:38:10  

Additional Information
 Earth MOID = 1.60149 au 
 Jupiter MOID = 2.13024 au 
 T_jup = 3.216 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456271.5 (2012-Dec-10.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1379736789680953 5.8425e-08  
q 2.561347404837501 1.7243e-07 au
tp 2455516.160159178393
(2010-Nov-15.66015918)
0.00010648 TDB
node 169.1286081077987 2.2096e-05 deg
peri 242.9579546923866 3.1323e-05 deg
i 11.95485391170492 6.0148e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1055  
   data-arc span      12348 days (33.81 yr)  
   first obs. used      1984-09-23  
   last obs. used      2018-07-15  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56667  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 02:38:10  

Additional Information
 Jupiter MOID = 2.13024 au 
 T_jup = 3.216 
Orbit Covariance (6×6)
  e q tp node peri i
e 3.413479819760112E-15 -1.001803690374288E-14 -2.588104968267605E-12 1.273390271990227E-14 -6.768298023187521E-13 -3.484485910400108E-15
q -1.001803690374288E-14 2.973226224679023E-14 7.256378051344245E-12 -3.89695541546815E-14 1.948427917016391E-12 1.063382479102781E-14
tp -2.588104968267605E-12 7.256378051344245E-12 1.1337942589109E-8 -1.96922487042131E-11 2.361453528527186E-9 2.698125766911517E-12
node 1.273390271990227E-14 -3.89695541546815E-14 -1.96922487042131E-11 4.882360245706793E-10 -4.819485090787271E-10 1.885669194293177E-11
peri -6.768298023187521E-13 1.948427917016391E-12 2.361453528527186E-9 -4.819485090787271E-10 9.811543724832244E-10 -1.782881083543759E-11
i -3.484485910400108E-15 1.063382479102781E-14 2.698125766911517E-12 1.885669194293177E-11 -1.782881083543759E-11 3.617829129180954E-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 14.3   n/a MPO359049  
diameter diameter 4.946 km 0.401 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
geometric albedo albedo 0.165   0.054 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  

46541 (1984 SM6)          Discovered 1984-Sep-23 by Debehogne, H. at La Silla
Reference: 20020921/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1984 SM6 = 2002 CM247 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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