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24621 (1979 MS4)
Classification: Main-belt Asteroid          SPK-ID: 2024621
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 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1622961345019751 3.6408e-08  
a 2.400238058771414 8.9402e-09 au
q 2.010688699948289 8.3887e-08 au
i 3.44916362373263 4.2025e-06 deg
node 144.9005125794374 5.4462e-05 deg
peri 116.5710544836551 5.619e-05 deg
M 74.33913036931465 1.2313e-05 deg
tp 2458920.024533478233
(2020-Mar-11.52453348)
4.6411e-05 TDB
period 1358.250593546283
3.72
7.5886e-06
2.078e-08
d
yr
n .2650468195710993 1.4808e-09 deg/d
Q 2.789787417594539 1.0391e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1018  
   data-arc span      18158 days (49.71 yr)  
   first obs. used      1971-03-24  
   last obs. used      2020-12-09  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .51512  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 04:45:26  

Additional Information
 Earth MOID = .996363 au 
 Jupiter MOID = 2.27928 au 
 T_jup = 3.506 
[ 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 15.84   n/a E2021B10  

24621 (1979 MS4)          Discovered 1979-Jun-25 by Helin, E. F., Bus, S. J. at Siding Spring
Reference: 20010606/Numbers.arcLast Updated: 2004-04-19

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Alternate Designations
 1979 MS4 = 4334 T-1 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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