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JPL Small-Body Database Browser
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376879 (2001 WW1)
Classification: Amor [NEO]          SPK-ID: 2376879
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


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Orbital Elements at Epoch 2455547.5 (2010-Dec-17.0) TDB
Reference: JPL 28 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1217782683632915 2.2186e-07  
a 1.21025162751883 2.1124e-09 au
q 1.062869280035732 2.68e-07 au
i 21.74072514323235 3.4461e-05 deg
node 59.84461601390989 8.3924e-06 deg
peri 45.6543773984683 0.00014108 deg
M 253.9627377618851 0.00010804 deg
tp 2455690.741198246555
(2011-May-09.24119825)
0.00014586 TDB
period 486.308588889842
1.33
1.2732e-06
3.486e-09
d
yr
n .7402707010004027 1.9381e-09 deg/d
Q 1.357633975001929 2.3696e-09 au

Additional Model Parameters
 Parameter Value Uncertainty (1-sigma) 
A2 [EST] -5.801071479068062E-14 1.89E-14
ALN [SET] 1. n/a
NK [SET] 0. n/a
NM [SET] 2. n/a
R0 [SET] 1. n/a
  Orbit Determination Parameters
   # obs. used (total)      103  
   data-arc span      5825 days (15.95 yr)  
   first obs. used      2001-11-18  
   last obs. used      2017-10-30  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51623  
   source      ORB  
   producer      Otto Matic  
   solution date      2018-Feb-09 06:32:07  

Additional Information
 Earth MOID = .108947 au 
 Jupiter MOID = 3.79501 au 
 T_jup = 5.189 
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Orbit Covariance (7×7)
  e q tp node peri i A2
e 4.922389950604852E-14 -5.94588272878291E-14 1.727566544828874E-11 1.484910097541282E-13 1.871347429712286E-11 -3.214403005300912E-12 -1.246420136522813E-21
q -5.94588272878291E-14 7.182503781227152E-14 -2.096745035550717E-11 -1.818737753691763E-13 -2.269259928164791E-11 3.857533170862628E-12 1.521233226108584E-21
tp 1.727566544828874E-11 -2.096745035550717E-11 2.127616599874103E-8 3.195496653459012E-10 2.047042909136238E-8 1.597546899498641E-9 1.746396586183939E-19
node 1.484910097541282E-13 -1.818737753691763E-13 3.195496653459012E-10 7.043288907234783E-11 2.377111934200702E-10 3.95932473870517E-11 -3.127546492418069E-21
peri 1.871347429712286E-11 -2.269259928164791E-11 2.047042909136238E-8 2.377111934200702E-10 1.990348641492775E-8 1.276443142945563E-9 1.58381011701735E-19
i -3.214403005300912E-12 3.857533170862628E-12 1.597546899498641E-9 3.95932473870517E-11 1.276443142945563E-9 1.187574320260697E-9 1.687474158985533E-19
A2 -1.246420136522813E-21 1.521233226108584E-21 1.746396586183939E-19 -3.127546492418069E-21 1.58381011701735E-19 1.687474158985533E-19 3.573560484491646E-28

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 22.2   n/a MPO437549  

376879 (2001 WW1)          Discovered 2001-Nov-18 by LINEAR at Socorro
Reference: Last Updated: 2013-11-20

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