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437827 (2015 DW216)
Classification: Main-belt Asteroid          SPK-ID: 2437827
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 2459000.5 (2020-May-31.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2004793079336746 6.1837e-08  
a 3.040181854206386 4.5545e-08 au
q 2.430688300082574 1.9298e-07 au
i 12.84067079417142 7.0485e-06 deg
node 178.0409843220349 2.7605e-05 deg
peri 289.911042707523 3.5699e-05 deg
M 37.76423103403764 1.7095e-05 deg
tp 2458797.392520942189
(2019-Nov-09.89252094)
9.3631e-05 TDB
period 1936.189099015641
5.30
4.3509e-05
1.191e-07
d
yr
n .1859322522696901 4.1782e-09 deg/d
Q 3.649675408330197 5.4676e-08 au
  Orbit Determination Parameters
   # obs. used (total)      248  
   data-arc span      6410 days (17.55 yr)  
   first obs. used      2002-10-04  
   last obs. used      2020-04-22  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53824  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-22 03:44:21  

Additional Information
 Earth MOID = 1.48225 au 
 Jupiter MOID = 1.6565 au 
 T_jup = 3.172 
[ hide covariance matrix ]
Orbital Elements at Epoch 2458101.5 (2017-Dec-14.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2007800626305045 6.1864e-08  
q 2.429164772975054 1.9315e-07 au
tp 2458797.934919878843
(2019-Nov-10.43491988)
9.3331e-05 TDB
node 178.0539112630361 2.7602e-05 deg
peri 290.0871674805252 3.5665e-05 deg
i 12.84266032466396 7.0496e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      248  
   data-arc span      6410 days (17.55 yr)  
   first obs. used      2002-10-04  
   last obs. used      2020-04-22  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53824  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-22 03:44:21  

Additional Information
 Jupiter MOID = 1.6565 au 
 T_jup = 3.172 
Orbit Covariance (6×6)
  e q tp node peri i
e 3.827109427665541E-15 -1.173669046113997E-14 1.711141041757839E-12 -3.574865577368613E-14 3.304349959521561E-13 -1.631972132572415E-14
q -1.173669046113997E-14 3.730666769933521E-14 -6.522201091631799E-12 1.142110996730975E-13 -1.424043878316871E-12 5.463325764476125E-14
tp 1.711141041757839E-12 -6.522201091631799E-12 8.710677715295566E-9 -2.999414416860334E-11 2.129604847995564E-9 -2.389971995655629E-11
node -3.574865577368613E-14 1.142110996730975E-13 -2.999414416860334E-11 7.618489831720428E-10 -7.485668158295606E-10 -7.490158114306214E-11
peri 3.304349959521561E-13 -1.424043878316871E-12 2.129604847995564E-9 -7.485668158295606E-10 1.272005633021234E-9 6.755946176171083E-11
i -1.631972132572415E-14 5.463325764476125E-14 -2.389971995655629E-11 -7.490158114306214E-11 6.755946176171083E-11 4.969624801648853E-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 16.0   n/a MPO419198  
diameter diameter 4.326 km 1.444 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.041   0.028 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

437827 (2015 DW216)          Discovered 2007-Sep-04 by Mt. Lemmon Survey at Mount Lemmon
Reference: Last Updated: 2015-06-04

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Alternate Designations
 2015 DW216 = 2010 AR131 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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