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249213 (2008 DS87)
Classification: Main-belt Asteroid          SPK-ID: 2249213
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06071389532365812 6.212e-08  
a 2.755673822308142 1.9032e-08 au
q 2.588366130314381 1.696e-07 au
i 4.027958723855773 4.4782e-06 deg
node 281.8051112640236 9.1998e-05 deg
peri 78.98140083929121 0.00010146 deg
M 65.4226766456177 4.0015e-05 deg
tp 2458696.855128374242
(2019-Aug-01.35512837)
0.00018583 TDB
period 1670.860310063376
4.57
1.731e-05
4.739e-08
d
yr
n .2154578679209546 2.2321e-09 deg/d
Q 2.922981514301904 2.0188e-08 au
  Orbit Determination Parameters
   # obs. used (total)      263  
   data-arc span      8353 days (22.87 yr)  
   first obs. used      1998-01-01  
   last obs. used      2020-11-14  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56157  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Dec-18 00:12:12  

Additional Information
 Earth MOID = 1.58845 au 
 Jupiter MOID = 2.37458 au 
 T_jup = 3.337 
[ show covariance matrix ]

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 16.3   n/a MPO494359  
diameter diameter 3.248 km 0.663 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.046   0.034 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

249213 (2008 DS87)          Discovered 2008-Feb-29 by Spacewatch at Kitt Peak
Reference: 20100824/Numbers.arcLast Updated: 2010-08-27

[ hide close-approach data ]
Close-Approach Data   ...sorted by Date/Time (TDB)
Date/Time (TDB) Time Uncertainty
(days_HH:MM)
Body Nominal Distance (au) Minimum Distance (au) Maximum Distance (au) V-relative (km/s) V-infinity (km/s) JD (TDB) Time Uncertainty (minutes) Semi-major axis (km) Semi-minor axis (km) range-LOV angle (deg) N-sigma BP Orbit Ref. Reference Modified
2026-Nov-16 13:53 00:07 Iris 0.0177188528385972 0.0177170434521814 0.0177206626274037 2.41646963941984 2.41646950515692 2461361.078415174 6.81078592974529 272.864339045792 77.1642473716365 -79.7527299677685 33796.5664414055 T 15 CATAB v2.0f-lin.ifort 2020-Dec-18 00:12:13 2020-Dec-18 00:12

Alternate Designations
 2008 DS87 = 1998 AE1 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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