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22824 von Neumann (1999 RP38)
Classification: Main-belt Asteroid          SPK-ID: 2022824
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 30 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1603003228024347 3.7006e-08  
a 2.333429275393803 8.5266e-09 au
q 1.959379809311525 8.5921e-08 au
i 4.673025295285462 3.8754e-06 deg
node 238.9412171125957 5.1001e-05 deg
peri 118.9723137126634 5.2431e-05 deg
M 349.948926232804 1.2979e-05 deg
tp 2459236.849659738967
(2021-Jan-22.34965974)
4.7026e-05 TDB
period 1301.93826143601
3.56
7.1361e-06
1.954e-08
d
yr
n .2765108075116616 1.5156e-09 deg/d
Q 2.707478741476081 9.8934e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1055  
   data-arc span      9796 days (26.82 yr)  
   first obs. used      1994-03-18  
   last obs. used      2021-01-11  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .51908  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 04:13:27  

Additional Information
 Earth MOID = .959286 au 
 Jupiter MOID = 2.76068 au 
 T_jup = 3.548 
[ 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 15.57   n/a E2021B10  
rotation period rot_per 16.0432 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.]

22824 von Neumann           Discovered 1999 Sept. 12 by P. Pravec and P. Kušnirák at Ondřejov.
Hungarian-U.S. mathematician John Ludwig von Neumann (1903-1957) influenced many branches of mathematics, computer science, physics and economics. He established the basic concepts of programmable serial digital computing and in 1944 joined the team that produced ENIAC, the first U.S. electronic computer.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20010804/MPCPages.arcLast Updated: 2009-05-11

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Alternate Designations
 1999 RP38 = 1998 HR2 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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