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8074 Slade (1984 WC2)
Classification: Main-belt Asteroid          SPK-ID: 2008074
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 32 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1462556839025825 1.9147e-08  
a 2.789056565918814 1.3167e-08 au
q 2.38114119042737 5.6767e-08 au
i 7.718005544036111 4.1171e-07 deg
node 270.8650378347807 1.9367e-06 deg
peri 142.0432092087025 6.4118e-06 deg
M 311.9750683573529 8.0699e-06 deg
tp 2459623.459656319571
(2022-Feb-12.95965632)
3.8805e-05 TDB
period 1701.313744348767
4.66
1.2048e-05
3.299e-08
d
yr
n .211601182436695 1.4985e-09 deg/d
Q 3.196971941410259 1.5093e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1674  
   data-arc span      25534 days (69.91 yr)  
   first obs. used      1951-08-11  
   last obs. used      2021-07-08  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .49247  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-09 13:45:10  

Additional Information
 Earth MOID = 1.39789 au 
 Jupiter MOID = 2.15817 au 
 T_jup = 3.301 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456985.5 (2014-Nov-24.0) TDB
Reference: JPL 32 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1503830562935764 1.9222e-08  
q 2.366726874010647 5.6983e-08 au
tp 2456224.173044575766
(2012-Oct-23.67304458)
3.4774e-05 TDB
node 270.9510892715567 1.9309e-06 deg
peri 142.0631042383737 6.248e-06 deg
i 7.733163849095915 4.1254e-07 deg
  Orbit Determination Parameters
   # obs. used (total)      1674  
   data-arc span      25534 days (69.91 yr)  
   first obs. used      1951-08-11  
   last obs. used      2021-07-08  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .49247  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-09 13:45:10  

Additional Information
 Jupiter MOID = 2.15817 au 
 T_jup = 3.301 
Orbit Covariance (6×6)
  e q tp node peri i
e 3.694712723484458E-16 -1.075931714861735E-15 -3.140777527262716E-13 -6.762361973115328E-15 -3.464481277693803E-14 9.044170214232827E-16
q -1.075931714861735E-15 3.247008120990164E-15 8.031241928125685E-13 1.836006994026928E-14 9.601024068735471E-14 -2.518583369622531E-15
tp -3.140777527262716E-13 8.031241928125685E-13 1.209228877448216E-9 -6.766458570479242E-12 1.964663454150468E-10 -5.153268597457999E-13
node -6.762361973115328E-15 1.836006994026928E-14 -6.766458570479242E-12 3.728382466783845E-12 -5.407739585999115E-12 -9.69286615257911E-14
peri -3.464481277693803E-14 9.601024068735471E-14 1.964663454150468E-10 -5.407739585999115E-12 3.903784836425727E-11 -1.455497133958874E-14
i 9.044170214232827E-16 -2.518583369622531E-15 -5.153268597457999E-13 -9.69286615257911E-14 -1.455497133958874E-14 1.701922599883527E-13

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 13.35   n/a E2021B10  
diameter diameter 4.620 km 0.314 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 6.77306 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Pal, A.; Szakats, R.; Kiss, C.; Bodi, A.; et al. (2019) Ap. J. Supl. Ser. 247, id.26.]
geometric albedo albedo 0.292   0.020 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

8074 Slade           Discovered 1984 Nov. 20 by E. Bowell at Palomar.
Martin A. Slade (b. 1942) is a scientist at the Jet Propulsion Laboratory. His three decades of contributions to planetary science include analysis of the moon's orbit, radar ranging of Mercury for testing physical theories and the discovery of radar brightness anomalies at Mercury's poles.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20010109/MPCPages.arcLast Updated: 2009-05-11

Alternate Designations
 1984 WC2 = 1995 AO 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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