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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.


Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2004070051380887 5.8054e-08  
a 3.039466787131334 4.5244e-08 au
q 2.430336351105655 1.8313e-07 au
i 12.841950847074 6.8889e-06 deg
node 178.0413299364384 2.6209e-05 deg
peri 289.8518500959599 3.4562e-05 deg
M 75.015502225906 1.6775e-05 deg
tp 2458797.186229558238
(2019-Nov-09.68622956)
9.3271e-05 TDB
period 1935.506036096271
5.30
4.3217e-05
1.183e-07
d
yr
n .1859978699555416 4.153e-09 deg/d
Q 3.648597223157013 5.4312e-08 au
  Orbit Determination Parameters
   # obs. used (total)      252  
   data-arc span      6410 days (17.55 yr)  
   first obs. used      2002-10-04  
   last obs. used      2020-04-22  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .54446  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-14 14:27:55  

Additional Information
 Earth MOID = 1.48184 au 
 Jupiter MOID = 1.65734 au 
 T_jup = 3.172 
[ hide covariance matrix ]
Orbital Elements at Epoch 2458116.5 (2017-Dec-29.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2007687813633482 5.8126e-08  
q 2.429233141720051 1.8347e-07 au
tp 2458797.931732113093
(2019-Nov-10.43173211)
9.2916e-05 TDB
node 178.0540667233906 2.6208e-05 deg
peri 290.0838237369537 3.4517e-05 deg
i 12.84261064898596 6.8894e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      252  
   data-arc span      6410 days (17.55 yr)  
   first obs. used      2002-10-04  
   last obs. used      2020-04-22  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .54446  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-14 14:27:55  

Additional Information
 Jupiter MOID = 1.65734 au 
 T_jup = 3.172 
Orbit Covariance (6×6)
  e q tp node peri i
e 3.378587342534465E-15 -1.045822618754225E-14 1.897460608277837E-12 -3.599348641813603E-14 4.120437305253479E-13 -1.448398082838046E-14
q -1.045822618754225E-14 3.366267754085673E-14 -7.053385257647947E-12 1.164036737143662E-13 -1.658119127506165E-12 4.914523044460944E-14
tp 1.897460608277837E-12 -7.053385257647947E-12 8.633402575599232E-9 -4.13249048041988E-11 2.106728950765473E-9 -2.269795576871332E-11
node -3.599348641813603E-14 1.164036737143662E-13 -4.13249048041988E-11 6.868451402601158E-10 -6.782980011298956E-10 -6.198097685323781E-11
peri 4.120437305253479E-13 -1.658119127506165E-12 2.106728950765473E-9 -6.782980011298956E-10 1.191445975583125E-9 5.512792873566415E-11
i -1.448398082838046E-14 4.914523044460944E-14 -2.269795576871332E-11 -6.198097685323781E-11 5.512792873566415E-11 4.746321031113835E-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 16.19   n/a MPCxxxxx  
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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