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101874 (1999 NM8)
Classification: Main-belt Asteroid          SPK-ID: 2101874
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 .1792261869314172 3.5764e-08  
a 2.232367600718002 7.4289e-09 au
q 1.832268867812078 7.8012e-08 au
i 5.827298131852261 4.678e-06 deg
node 148.3297957819638 3.2001e-05 deg
peri 130.4089901703753 3.4751e-05 deg
M 112.2171018429705 1.1913e-05 deg
tp 2458620.744965103846
(2019-May-17.24496510)
4.0263e-05 TDB
period 1218.279658958947
3.34
6.0813e-06
1.665e-08
d
yr
n .2954986544777655 1.475e-09 deg/d
Q 2.632466333623926 8.7603e-09 au
  Orbit Determination Parameters
   # obs. used (total)      740  
   data-arc span      9042 days (24.76 yr)  
   first obs. used      1995-02-23  
   last obs. used      2019-11-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55735  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-24 01:28:00  

Additional Information
 Earth MOID = .822351 au 
 Jupiter MOID = 2.5117 au 
 T_jup = 3.613 
[ 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 16.2   n/a MPO337995  

101874 (1999 NM8)          Discovered 1999-Jul-13 by LINEAR at Socorro
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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