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312346 (2008 DT2)
Classification: Main-belt Asteroid          SPK-ID: 2312346
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 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .009259012015000753 5.1385e-08  
a 2.643377620113434 2.551e-08 au
q 2.61890255496862 1.3949e-07 au
i 3.713701124308181 4.8287e-06 deg
node 117.5246254631999 8.9605e-05 deg
peri 106.399741017018 0.00030081 deg
M 225.4516866938289 0.00028976 deg
tp 2459587.195824123603
(2022-Jan-07.69582412)
0.0012655 TDB
period 1569.774391774629
4.30
2.2723e-05
6.221e-08
d
yr
n .2293323179982699 3.3197e-09 deg/d
Q 2.667852685258249 2.5746e-08 au
  Orbit Determination Parameters
   # obs. used (total)      179  
   data-arc span      6192 days (16.95 yr)  
   first obs. used      2002-11-25  
   last obs. used      2019-11-08  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57793  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-04 21:32:15  

Additional Information
 Earth MOID = 1.60921 au 
 Jupiter MOID = 2.29487 au 
 T_jup = 3.391 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457297.5 (2015-Oct-02.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .01021337470655534 4.9869e-08  
q 2.615583373237535 1.3494e-07 au
tp 2458052.410420510361
(2017-Oct-25.91042051)
0.001185 TDB
node 117.5962149109289 8.9617e-05 deg
peri 114.4016945662192 0.00028455 deg
i 3.713741639228287 4.8293e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      179  
   data-arc span      6192 days (16.95 yr)  
   first obs. used      2002-11-25  
   last obs. used      2019-11-08  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57793  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-04 21:32:15  

Additional Information
 Jupiter MOID = 2.29487 au 
 T_jup = 3.391 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.48689917590409E-15 -6.610922467207474E-15 -1.286040677478517E-11 2.356145703806448E-14 -2.947970652537952E-12 5.642263183531752E-16
q -6.610922467207474E-15 1.820883525460211E-14 4.068060182371277E-11 -6.248299654741596E-14 9.255694318996682E-12 -9.665992175040531E-16
tp -1.286040677478517E-11 4.068060182371277E-11 1.404271734316314E-6 4.904644405152349E-11 3.200714801464041E-7 2.277193983521177E-11
node 2.356145703806448E-14 -6.248299654741596E-14 4.904644405152349E-11 8.031252336906433E-9 -8.002878001584319E-9 2.946673735867294E-11
peri -2.947970652537952E-12 9.255694318996682E-12 3.200714801464041E-7 -8.002878001584319E-9 8.097009886917416E-8 -2.42415336303027E-11
i 5.642263183531752E-16 -9.665992175040531E-16 2.277193983521177E-11 2.946673735867294E-11 -2.42415336303027E-11 2.332226262148717E-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 16.8   n/a MPO503318  

312346 (2008 DT2)          Discovered 2008-Feb-24 by Spacewatch at Kitt Peak
Reference: 20120109/Numbers.arcLast Updated: 2012-01-11

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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
2008-Mar-10 04:24 00:01 Hebe 0.0161236378263037 0.0161208664665519 0.0161264092083066 5.02762914730436 5.02762907061568 2454535.683539084 1.01503106154426 142.901118547538 79.7379119287145 -17.9607924814494 18561.3908671068 T 15 CATAB v2.0f-lin.ifort 2019-Dec-04 21:32:16 2019-Dec-04 21:32
2132-Nov-01 20:00 00:08 Hebe 0.0413164962774119 0.0412537064539553 0.0413792884752707 5.19394583796021 5.193945808991 2500062.333285954 8.23483306171954 3168.87977332815 85.5124074692223 8.98024237434878 11440.4880820795 T 15 CATAB v2.0f-lin.ifort 2019-Dec-04 21:32:16 2019-Dec-04 21:32
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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