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59994 (1999 SH22)
Classification: Main-belt Asteroid          SPK-ID: 2059994
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3001148099724982 3.5312e-08  
a 2.585101999857304 9.5067e-09 au
q 1.809274604410605 8.8564e-08 au
i 4.903467359814011 7.6419e-06 deg
node 171.3938461523528 3.741e-05 deg
peri 115.2595751971746 4.0205e-05 deg
M 15.10826069175463 1.3178e-05 deg
tp 2458936.787166263531
(2020-Mar-28.28716626)
5.5508e-05 TDB
period 1518.15093829076
4.16
8.3745e-06
2.293e-08
d
yr
n .2371305717502062 1.3081e-09 deg/d
Q 3.360929395304004 1.236e-08 au
  Orbit Determination Parameters
   # obs. used (total)      883  
   data-arc span      9202 days (25.19 yr)  
   first obs. used      1995-08-22  
   last obs. used      2020-10-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .50883  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 22:44:14  

Additional Information
 Earth MOID = .799751 au 
 Jupiter MOID = 1.85746 au 
 T_jup = 3.353 
[ 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 15.6   n/a MPO432154  

59994 (1999 SH22)          Discovered 1999-Sep-30 by LINEAR at Socorro
Reference: 20030614/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1999 SH22 = 1995 SK6 = 1999 NM49 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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