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26287 (1998 SD67)
Classification: Main-belt Asteroid          SPK-ID: 2026287
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 30 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1925537056331109 1.0496e-08  
a 2.228174331984179 5.7791e-09 au
q 1.799131107564044 2.2298e-08 au
i 5.936966074698811 1.3948e-06 deg
node 48.38600964209802 4.5923e-06 deg
peri 299.2477276520125 8.4159e-06 deg
M 265.4907509596241 6.337e-06 deg
tp 2459519.428983639150
(2021-Oct-31.92898364)		 2.199e-05 TDB
period 1214.848655299795
3.33		 4.7263e-06
1.294e-08		 d
yr
n .296333208609562 1.1529e-09 deg/d
Q 2.657217556404315 6.8919e-09 au
   Orbit Determination Parameters
   # obs. used (total)      1991  
   data-arc span      25659 days (70.25 yr)  
   first obs. used      1950-03-21  
   last obs. used      2020-06-20  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .47148  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 05:15:05  

Additional Information
 Earth MOID = .800314 au 
 Jupiter MOID = 2.77712 au 
 T_jup = 3.613 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457073.5 (2015-Feb-20.0) TDB
Reference: JPL 30 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1928837450081227 1.0552e-08  
q 1.798701018912509 2.2435e-08 au
tp 2457087.781447890613
(2015-Mar-06.28144789)		 1.8871e-05 TDB
node 48.43361006937197 4.5973e-06 deg
peri 298.9134521644418 8.3946e-06 deg
i 5.93451674423456 1.3938e-06 deg
   Orbit Determination Parameters
   # obs. used (total)      1991  
   data-arc span      25659 days (70.25 yr)  
   first obs. used      1950-03-21  
   last obs. used      2020-06-20  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .47148  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 05:15:05  

Additional Information
 Jupiter MOID = 2.77712 au 
 T_jup = 3.613 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.113454839932063E-16 -2.320994398998501E-16 3.354285451437882E-15 1.307695646086964E-15 -9.130579720680141E-15 2.24864009952862E-15
q -2.320994398998501E-16 5.033462606029989E-16 1.111813150214306E-15 -3.598611018552939E-15 2.314530122944039E-14 -4.897134076153625E-15
tp 3.354285451437882E-15 1.111813150214306E-15 3.561098596162451E-10 -3.193750054394149E-11 1.388401942251004E-10 -8.9906589349453E-12
node 1.307695646086964E-15 -3.598611018552939E-15 -3.193750054394149E-11 2.113554782475561E-11 -2.895140192088913E-11 -1.704779002959856E-13
peri -9.130579720680141E-15 2.314530122944039E-14 1.388401942251004E-10 -2.895140192088913E-11 7.046942180926574E-11 -3.21616754500912E-12
i 2.24864009952862E-15 -4.897134076153625E-15 -8.9906589349453E-12 -1.704779002959856E-13 -3.21616754500912E-12 1.942778358679214E-12

[ 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 14.46   n/a E2021B10  
diameter diameter 4.165 km 0.248 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 10.648 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Published Reference List:
[Folberth, J.; Casimir, S.; Dou, Y.; Evans, D; et al. (2012) Minor Planet Bull. 39, 51-55.]
geometric albedo albedo 0.280   0.098 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

26287 (1998 SD67)          Discovered 1998-Sep-20 by Elst, E. W. at La Silla
Reference: 20010705/Numbers.arcLast Updated: 2004-04-19

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Alternate Designations
 1998 SD67 = 1978 TV4 = 1988 VF5 
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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