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8022 Scottcrossfield (1990 VD7)
Classification: Main-belt Asteroid          SPK-ID: 2008022
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 35 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .0037139439700795 8.7694e-09  
a 2.29096557075066 6.2203e-09 au
q 2.282457052983511 2.3444e-08 au
i 3.416656770692598 6.3587e-07 deg
node 346.5287117939387 2.7636e-06 deg
peri 285.3693075961993 0.00029257 deg
M 10.77435835653646 0.00029211 deg
tp 2459162.593369140469
(2020-Nov-09.09336914)
0.0010277 TDB
period 1266.561465458624
3.47
5.1584e-06
1.412e-08
d
yr
n .2842341329795973 1.1576e-09 deg/d
Q 2.299474088517809 6.2434e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2598  
   data-arc span      18604 days (50.93 yr)  
   first obs. used      1969-10-09  
   last obs. used      2020-09-15  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .47249  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Mar-16 20:18:48  

Additional Information
 Earth MOID = 1.26684 au 
 Jupiter MOID = 2.66622 au 
 T_jup = 3.596 
[ show covariance matrix ]

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 13.98   n/a E2021B10  
diameter diameter 8.328 km 0.152 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 4.003 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:
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]
geometric albedo albedo 0.084   0.015 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

8022 Scottcrossfield           Discovered 1990 Nov. 10 by A. Mrkos at Klet.
Test pilot Albert Scott Crossfield (1921-2006) was the first X-15 pilot and made a total of 14 flights. In 1953 Crossfield was the first pilot to exceed Mach 2 in the D-558-II Skyrocket. While an NACA research pilot, he made a total of 87 flights in the rocket-powered X-1 and D-558-II research aircraft.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20120207/MPCPages.arcLast Updated: 2012-02-09

[ show close-approach data ]
Alternate Designations
 1990 VD7 = 1940 EE = 1969 TF3 = 1983 TP1 = 1990 UM6 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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