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541695 (2011 WA1)
Classification: Main-belt Asteroid          SPK-ID: 2541695
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2041933648365481 7.31e-08  
a 2.624043869223382 2.2226e-08 au
q 2.088231522087944 1.9412e-07 au
i 12.11728418748723 8.5119e-06 deg
node 244.2450423459678 3.3301e-05 deg
peri 109.4912835187314 3.9249e-05 deg
M 101.6745879741049 1.7842e-05 deg
tp 2458762.004658039762
(2019-Oct-05.50465804)
7.623e-05 TDB
period 1552.583848639644
4.25
1.9726e-05
5.401e-08
d
yr
n .2318715348710009 2.946e-09 deg/d
Q 3.159856216358819 2.6765e-08 au
  Orbit Determination Parameters
   # obs. used (total)      135  
   data-arc span      6705 days (18.36 yr)  
   first obs. used      2002-08-14  
   last obs. used      2020-12-22  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .58583  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-14 20:24:07  

Additional Information
 Earth MOID = 1.11955 au 
 Jupiter MOID = 2.4647 au 
 T_jup = 3.342 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 17.31   n/a MPCxxxxx  

541695 (2011 WA1)          Discovered 2011-Nov-16 by Mount Lemmon Survey at Mount Lemmon
Reference: Last Updated: 2019-12-13

Alternate Designations
 2011 WA1 = 2011 YD39 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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