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108660 (2001 NM20)
Classification: Main-belt Asteroid          SPK-ID: 2108660
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 29 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09224025160534616 4.6015e-08  
a 3.170763512962201 2.5831e-08 au
q 2.878291488745516 1.5578e-07 au
i 20.64763226145458 5.0271e-06 deg
node 255.6344564598605 1.4491e-05 deg
peri 250.3622382241076 3.3689e-05 deg
M 302.8472520573868 3.0309e-05 deg
tp 2459327.900109610869
(2021-Apr-23.40010961)
0.00017376 TDB
period 2062.263735389579
5.65
2.5201e-05
6.9e-08
d
yr
n .1745654514610339 2.1332e-09 deg/d
Q 3.463235537178886 2.8214e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1342  
   data-arc span      7090 days (19.41 yr)  
   first obs. used      2001-06-19  
   last obs. used      2020-11-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .4511  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Dec-17 22:35:59  

Additional Information
 Earth MOID = 1.96388 au 
 Jupiter MOID = 1.9498 au 
 T_jup = 3.096 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457346.5 (2015-Nov-20.0) TDB
Reference: JPL 29 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09329552347746128 4.6355e-08  
q 2.875694494142073 1.575e-07 au
tp 2457272.488782166201
(2015-Sep-06.98878217)
0.00017135 TDB
node 255.6948616855168 1.4504e-05 deg
peri 251.3180290856408 3.316e-05 deg
i 20.63713962262304 5.0247e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1342  
   data-arc span      7090 days (19.41 yr)  
   first obs. used      2001-06-19  
   last obs. used      2020-11-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .4511  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Dec-17 22:35:59  

Additional Information
 Jupiter MOID = 1.9498 au 
 T_jup = 3.096 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.148792119538357E-15 -7.229171935698489E-15 2.303392435315973E-12 -7.361037788013171E-15 4.71807331657373E-13 1.260300390889465E-15
q -7.229171935698489E-15 2.48050689701375E-14 -7.753863061933886E-12 2.728992029514881E-14 -1.590681231298334E-12 -4.851247761029228E-15
tp 2.303392435315973E-12 -7.753863061933886E-12 2.936043334534316E-8 2.043275093573195E-11 5.146312817010482E-9 -2.37900559910465E-12
node -7.361037788013171E-15 2.728992029514881E-14 2.043275093573195E-11 2.103610184219921E-10 -1.930788416761585E-10 -2.352273824558459E-11
peri 4.71807331657373E-13 -1.590681231298334E-12 5.146312817010482E-9 -1.930788416761585E-10 1.099559725944237E-9 2.162893516864219E-11
i 1.260300390889465E-15 -4.851247761029228E-15 -2.37900559910465E-12 -2.352273824558459E-11 2.162893516864219E-11 2.524791437210509E-11

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 13.4   n/a MPO502752  
diameter diameter 11.609 km 0.073 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.069   0.012 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

108660 (2001 NM20)          Discovered 2001-Jul-13 by NEAT at Palomar
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

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Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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