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305753 (2009 DT8)
Classification: Main-belt Asteroid          SPK-ID: 2305753
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 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2077430092761232 3.2342e-08  
a 2.343180551785344 1.1452e-08 au
q 1.85640117268017 7.5771e-08 au
i 3.089926426945783 4.1867e-06 deg
node 274.6169960297509 8.5083e-05 deg
peri 148.1487118832262 8.5904e-05 deg
M 129.4521741448172 1.337e-05 deg
tp 2458529.399130275488
(2019-Feb-14.89913028)
4.6817e-05 TDB
period 1310.107877455177
3.59
9.6043e-06
2.63e-08
d
yr
n .2747865318536081 2.0144e-09 deg/d
Q 2.829959930890519 1.3831e-08 au
  Orbit Determination Parameters
   # obs. used (total)      306  
   data-arc span      9695 days (26.54 yr)  
   first obs. used      1993-10-11  
   last obs. used      2020-04-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58611  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-21 20:01:15  

Additional Information
 Earth MOID = .870484 au 
 Jupiter MOID = 2.49441 au 
 T_jup = 3.532 
[ 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 17.2   n/a MPO413264  

305753 (2009 DT8)          Discovered 2009-Feb-19 by Mt. Lemmon Survey at Mount Lemmon
Reference: 20111110/Numbers.arcLast Updated: 2011-11-14

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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
1916-Jul-01 08:10 00:10 Hygie 0.0469199423544324 0.0469185354872117 0.0469213497918027 3.38585876740561 3.38585852419857 2421045.840410416 9.60849990783679 524.043160368651 60.8101363831605 86.2054469757796 114889.675133383 T 16 CATAB v2.0f-lin.ifort 2020-May-21 20:01:18 2020-May-21 20:01
1966-Nov-21 09:08 00:06 Hygie 0.0481134529919652 0.0481116799275755 0.0481152261522804 3.16357691834048 3.16357666450196 2439450.880791916 6.27591734181029 181.901171710392 65.386024054384 69.6366140928616 103817.427664283 T 16 CATAB v2.0f-lin.ifort 2020-May-21 20:01:18 2020-May-21 20:01
2099-May-08 11:55 00:03 Amphi 0.0337140090059223 0.0337013981620946 0.033726622942269 2.85835037892859 2.85835031927355 2487831.996588090 2.56988807888745 811.261350888285 81.3561424654161 -39.4690424437967 39657.3505460294 T 16 CATAB v2.0f-lin.ifort 2020-May-21 20:01:18 2020-May-21 20:01
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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