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JPL Small-Body Database Browser
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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 27 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .0922402547054999 4.619e-08  
a 3.170763515018082 2.6733e-08 au
q 2.878291480781908 1.5597e-07 au
i 20.64763355977608 5.2143e-06 deg
node 255.6344525227718 1.5352e-05 deg
peri 250.362244185166 3.5679e-05 deg
M 302.8472492251344 3.2835e-05 deg
tp 2459327.900126153878
(2021-Apr-23.40012615)
0.00018863 TDB
period 2062.263737395295
5.65
2.608e-05
7.14e-08
d
yr
n .1745654512912551 2.2076e-09 deg/d
Q 3.463235549254255 2.9198e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1267  
   data-arc span      6798 days (18.61 yr)  
   first obs. used      2001-06-19  
   last obs. used      2020-01-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .44797  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-24 03:11:22  

Additional Information
 Earth MOID = 1.96388 au 
 Jupiter MOID = 1.9498 au 
 T_jup = 3.096 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457211.5 (2015-Jul-08.0) TDB
Reference: JPL 27 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09315712296359502 4.6599e-08  
q 2.87570495595052 1.5783e-07 au
tp 2457273.120121777095
(2015-Sep-07.62012178)
0.00018362 TDB
node 255.7313495986649 1.5367e-05 deg
peri 251.4173213771649 3.5133e-05 deg
i 20.64108838708412 5.2105e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1267  
   data-arc span      6798 days (18.61 yr)  
   first obs. used      2001-06-19  
   last obs. used      2020-01-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .44797  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-24 03:11:22  

Additional Information
 Jupiter MOID = 1.9498 au 
 T_jup = 3.096 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.17148005010101E-15 -7.276485355574352E-15 2.536373497384609E-12 -5.199315843828341E-15 5.078334710308984E-13 8.826531909460465E-16
q -7.276485355574352E-15 2.49113721457375E-14 -8.149969768691286E-12 2.239086220543681E-14 -1.650564722443912E-12 -3.327071132789963E-15
tp 2.536373497384609E-12 -8.149969768691286E-12 3.37166914363624E-8 3.19406134461314E-11 5.846517212968103E-9 -4.379524907906501E-12
node -5.199315843828341E-15 2.239086220543681E-14 3.19406134461314E-11 2.361337409952969E-10 -2.15147623499304E-10 -3.041618281898506E-11
peri 5.078334710308984E-13 -1.650564722443912E-12 5.846517212968103E-9 -2.15147623499304E-10 1.234354543622215E-9 2.767522890746721E-11
i 8.826531909460465E-16 -3.327071132789963E-15 -4.379524907906501E-12 -3.041618281898506E-11 2.767522890746721E-11 2.714955287462554E-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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