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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 
[ 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 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

[ hide close-approach data ]
Close-Approach Data   ...sorted by Date/Time (TDB)
Date/Time (TDB) Time Uncertainty
(days_HH:MM)
Body Nominal Distance (au) Minimum Distance (au) Maximum Distance (au) V-relative (km/s) V-infinity (km/s) JD (TDB) Time Uncertainty (minutes) Semi-major axis (km) Semi-minor axis (km) range-LOV angle (deg) N-sigma BP Orbit Ref. Reference Modified
1929-Jun-28 09:20 00:03 Jupiter 1.97354252502539 1.97354198475438 1.97354306529809 6.65758199600337 6.59280063884195 2425790.888662682 3.07208773584874 477.109727764585 26.1174280200674 89.5906431763711 4321564.68460089 T 27 CATAB v2.0f-lin.ifort 2020-Feb-24 03:11:38 2020-Feb-24 03:11
2048-Jun-08 10:34 00:01 Jupiter 1.98911981993122 1.98911933661329 1.98912030324938 6.90983367010916 6.84793003393205 2469235.940370340 1.05440742109468 172.833231927763 23.1694599929893 88.3613806327448 4738793.32537772 T 27 CATAB v2.0f-lin.ifort 2020-Feb-24 03:11:38 2020-Feb-24 03:11
2059-May-15 17:15 00:02 Jupiter 1.99897354373897 1.99897273253115 1.99897435495078 5.90942907579378 5.83728486087689 2473229.219053031 1.57655535213132 212.977846203508 29.5600904777647 -82.0304844200071 3127886.16076579 T 27 CATAB v2.0f-lin.ifort 2020-Feb-24 03:11:38 2020-Feb-24 03:11
2178-May-02 00:32 00:06 Jupiter 1.93637801092807 1.93637717928557 1.9363788426627 6.39189978743567 6.32309500565639 2516679.522471306 5.64596864402891 878.867142262793 26.3472352508544 -87.6808384528276 3775821.70582889 T 27 CATAB v2.0f-lin.ifort 2020-Feb-24 03:11:38 2020-Feb-24 03:11
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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