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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 ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 28 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1925537175605892 3.2972e-08  
a 2.228174333106359 5.9869e-09 au
q 1.799131081893643 7.2068e-08 au
i 5.936973566440943 4.0625e-06 deg
node 48.38602219902543 2.8441e-05 deg
peri 299.2477178479974 3.0276e-05 deg
M 265.4907449651551 1.1442e-05 deg
tp 2459519.429004108897
(2021-Oct-31.92900411)
3.9151e-05 TDB
period 1214.84865621755
3.33
4.8963e-06
1.341e-08
d
yr
n .2963332083856977 1.1943e-09 deg/d
Q 2.657217584319075 7.1398e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1954  
   data-arc span      25659 days (70.25 yr)  
   first obs. used      1950-03-21  
   last obs. used      2020-06-20  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .47124  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 01:29:48  

Additional Information
 Earth MOID = .800314 au 
 Jupiter MOID = 2.77712 au 
 T_jup = 3.613 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457046.5 (2015-Jan-24.0) TDB
Reference: JPL 28 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1928972411976977 3.2991e-08  
q 1.79869892242957 7.212e-08 au
tp 2457087.784809037940
(2015-Mar-06.28480904)
3.5781e-05 TDB
node 48.43422751246798 2.8473e-05 deg
peri 298.9144105912721 3.0288e-05 deg
i 5.934505581747986 4.0596e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1954  
   data-arc span      25659 days (70.25 yr)  
   first obs. used      1950-03-21  
   last obs. used      2020-06-20  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .47124  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 01:29:48  

Additional Information
 Jupiter MOID = 2.77712 au 
 T_jup = 3.613 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.088418805170034E-15 -2.374501434592545E-15 5.409470241740852E-13 -4.564221774221015E-15 1.468152363610625E-13 9.014266619536538E-16
q -2.374501434592545E-15 5.201305171301434E-15 -1.169535020743681E-12 9.704469358670707E-15 -3.179426571150207E-13 -1.94243560170158E-15
tp 5.409470241740852E-13 -1.169535020743681E-12 1.28030336602171E-9 -9.593381043092004E-12 3.752991580952576E-10 4.915684242269027E-13
node -4.564221774221015E-15 9.704469358670707E-15 -9.593381043092004E-12 8.106929263686828E-10 -8.086616635598201E-10 -1.139916235843502E-11
peri 1.468152363610625E-13 -3.179426571150207E-13 3.752991580952576E-10 -8.086616635598201E-10 9.173731254147831E-10 1.146898985797677E-11
i 9.014266619536538E-16 -1.94243560170158E-15 4.915684242269027E-13 -1.139916235843502E-11 1.146898985797677E-11 1.648026885436647E-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 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

[ show close-approach data ]
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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