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15824 (1994 WM1)
Classification: Main-belt Asteroid          SPK-ID: 2015824
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

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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 2459000.5 (2020-May-31.0) TDB
Reference: JPL 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08429292279632743 3.4809e-08  
a 2.444834363627881 1.1911e-08 au
q 2.238752129364788 8.5213e-08 au
i 15.89330736649675 5.0488e-06 deg
node 65.49729412979181 1.3654e-05 deg
peri 38.17849777774747 3.5554e-05 deg
M 214.7330502559412 3.4307e-05 deg
tp 2459563.926027542896
(2021-Dec-15.42602754)
0.00013509 TDB
period 1396.280229417692
3.82
1.0204e-05
2.794e-08
d
yr
n .2578279004567266 1.8842e-09 deg/d
Q 2.650916597890974 1.2915e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1255  
   data-arc span      10943 days (29.96 yr)  
   first obs. used      1990-11-13  
   last obs. used      2020-10-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .49004  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 02:31:09  

Additional Information
 Earth MOID = 1.27123 au 
 Jupiter MOID = 2.60441 au 
 T_jup = 3.442 
[ 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 14.6   n/a MPO337392  
diameter diameter 7.060 km 0.038 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 28.5797 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 sidereal period (not synodic); Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Durech, J.; Hanus, J.; Ali-Lagoa, V. (2018) Astron. Astrophys. 617, A57.]
geometric albedo albedo 0.063   0.014 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

15824 (1994 WM1)          Discovered 1994-Nov-27 by Kobayashi, T. at Oizumi
Reference: 20000726/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1994 WM1 = 1996 LW5 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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