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108631 (2001 NG)
Classification: Main-belt Asteroid          SPK-ID: 2108631
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1254074279999242 7.3787e-08  
a 2.44603296232736 1.4816e-08 au
q 2.13928225971885 1.7264e-07 au
i 5.578616822733993 4.9578e-06 deg
node 36.74903798244485 4.339e-05 deg
peri 327.4912398866044 4.6136e-05 deg
M 278.4736122511987 1.7349e-05 deg
tp 2459316.937237212188
(2021-Apr-12.43723721)
6.8587e-05 TDB
period 1397.307160810181
3.83
1.2695e-05
3.476e-08
d
yr
n .2576384134403678 2.3408e-09 deg/d
Q 2.752783664935869 1.6674e-08 au
  Orbit Determination Parameters
   # obs. used (total)      743  
   data-arc span      10422 days (28.53 yr)  
   first obs. used      1990-09-28  
   last obs. used      2019-04-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5688  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 07:40:04  

Additional Information
 Earth MOID = 1.14006 au 
 Jupiter MOID = 2.70643 au 
 T_jup = 3.481 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456809.5 (2014-Jun-01.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1241388910919271 7.3301e-08  
q 2.142261029202124 1.7061e-07 au
tp 2456524.369723542368
(2013-Aug-19.86972354)
6.2503e-05 TDB
node 36.86249520281829 4.3391e-05 deg
peri 327.6858318650139 4.6226e-05 deg
i 5.578549861462148 4.9558e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      743  
   data-arc span      10422 days (28.53 yr)  
   first obs. used      1990-09-28  
   last obs. used      2019-04-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5688  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 07:40:04  

Additional Information
 Jupiter MOID = 2.70643 au 
 T_jup = 3.481 
Orbit Covariance (6×6)
  e q tp node peri i
e 5.373011975455917E-15 -1.248364864649824E-14 7.186756033759832E-13 3.15207535509031E-14 -3.147590265577122E-14 2.451848643273043E-15
q -1.248364864649824E-14 2.910925296252496E-14 -1.705277112342391E-12 -7.327596112924145E-14 6.860689987378627E-14 -5.631936079953075E-15
tp 7.186756033759832E-13 -1.705277112342391E-12 3.90657356153921E-9 1.116264936882759E-11 9.960864612498686E-10 -7.960976692356376E-13
node 3.15207535509031E-14 -7.327596112924145E-14 1.116264936882759E-11 1.882791517118903E-9 -1.871411460545744E-9 -4.02975905870333E-11
peri -3.147590265577122E-14 6.860689987378627E-14 9.960864612498686E-10 -1.871411460545744E-9 2.136830633968859E-9 3.982274171088769E-11
i 2.451848643273043E-15 -5.631936079953075E-15 -7.960976692356376E-13 -4.02975905870333E-11 3.982274171088769E-11 2.456008435952622E-11

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.7   n/a MPO320256  

108631 (2001 NG)          Discovered 2001-Jul-10 by NEAT at Palomar
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

Alternate Designations
 2001 NG = 2002 XF113 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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