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74787 (1999 SH2)
Classification: Main-belt Asteroid          SPK-ID: 2074787
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 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1989076959696177 5.4857e-08  
a 2.409861945712454 8.6949e-09 au
q 1.93052185848593 1.3103e-07 au
i 2.448867764052203 3.456e-06 deg
node 146.1122993542865 0.00010031 deg
peri 254.2951774494364 0.0001007 deg
M 183.1332412363181 9.194e-06 deg
tp 2459671.821241129381
(2022-Apr-02.32124113)
3.6768e-05 TDB
period 1366.427747621523
3.74
7.3952e-06
2.025e-08
d
yr
n .2634606920319316 1.4259e-09 deg/d
Q 2.889202032938978 1.0424e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1105  
   data-arc span      9013 days (24.68 yr)  
   first obs. used      1995-08-24  
   last obs. used      2020-04-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52786  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 14:08:37  

Additional Information
 Earth MOID = .940304 au 
 Jupiter MOID = 2.52445 au 
 T_jup = 3.492 
[ 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 MPO453161  

74787 (1999 SH2)          Discovered 1999-Sep-22 by Korlevic, K. at Visnjan
Reference: 20040415/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1999 SH2 = 1995 QD11 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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