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312349 (2008 DE4)
Classification: Main-belt Asteroid          SPK-ID: 2312349
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .03324238265894309 6.5944e-08  
a 2.630592850831862 3.0228e-08 au
q 2.543145676664629 1.8761e-07 au
i 11.60725879754438 8.7269e-06 deg
node 335.857805747742 2.3664e-05 deg
peri 248.707505403175 0.00012424 deg
M 282.2231664005582 0.00012175 deg
tp 2459537.187224717151
(2021-Nov-18.68722472)
0.00052803 TDB
period 1558.399786784894
4.27
2.6861e-05
7.354e-08
d
yr
n .23100619176977 3.9817e-09 deg/d
Q 2.718040024999095 3.1232e-08 au
  Orbit Determination Parameters
   # obs. used (total)      206  
   data-arc span      8559 days (23.43 yr)  
   first obs. used      1997-08-12  
   last obs. used      2021-01-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .59143  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 15:20:37  

Additional Information
 Earth MOID = 1.56203 au 
 Jupiter MOID = 2.30023 au 
 T_jup = 3.370 
[ 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 16.4   n/a MPO455302  
diameter diameter 3.270 km 1.094 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.035   0.035 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

312349 (2008 DE4)          Discovered 2008-Feb-26 by Sarneczky, K. at Piszkesteto
Reference: 20120109/Numbers.arcLast Updated: 2012-01-11

[ 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
1900-Jun-27 06:20 00:11 Inter 0.0383338308093899 0.038191562676338 0.0384761357380005 5.04276214914579 5.04276207341578 2415197.764163554 11.2142536270144 7334.04612487094 101.868771220718 14.7850955923883 14376.5607163476 T 15 CATAB v2.0f-lin.ifort 2021-Feb-24 15:20:37 2021-Feb-24 15:20
2161-Jul-14 18:00 00:06 David 0.0337986767735546 0.0336570474105547 0.0339408833431687 8.62549203284393 8.62549198102368 2510544.249718214 5.78877204708503 9929.23660808539 187.269104312426 44.5630547195708 18944.5963923022 T 15 CATAB v2.0f-lin.ifort 2021-Feb-24 15:20:37 2021-Feb-24 15:20
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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