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JPL Small-Body Database Browser
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437851 (1999 TT278)
Classification: Main-belt Asteroid          SPK-ID: 2437851
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 7 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2876087612369351 6.8016e-08  
a 2.645929932857808 2.014e-08 au
q 1.884937302548847 1.8675e-07 au
i 12.86619971371338 7.5368e-06 deg
node 219.2292444441985 2.4149e-05 deg
peri 179.276930318555 2.8043e-05 deg
M 195.2015863979699 1.1508e-05 deg
tp 2459320.141933863029
(2021-Apr-15.64193386)
5.4839e-05 TDB
period 1572.048483526781
4.30
1.7949e-05
4.914e-08
d
yr
n .229000570766345 2.6147e-09 deg/d
Q 3.406922563166769 2.5933e-08 au
  Orbit Determination Parameters
   # obs. used (total)      164  
   data-arc span      7157 days (19.59 yr)  
   first obs. used      1999-10-06  
   last obs. used      2019-05-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .69372  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 10:10:44  

Additional Information
 Earth MOID = .892164 au 
 Jupiter MOID = 2.01919 au 
 T_jup = 3.298 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457357.5 (2015-Dec-01.0) TDB
Reference: JPL 7 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2890668318432439 6.8304e-08  
q 1.879384451359569 1.8791e-07 au
tp 2457749.034307751341
(2016-Dec-26.53430775)
4.5853e-05 TDB
node 219.2343041909693 2.4147e-05 deg
peri 179.272901148646 2.7972e-05 deg
i 12.87214236346573 7.5417e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      164  
   data-arc span      7157 days (19.59 yr)  
   first obs. used      1999-10-06  
   last obs. used      2019-05-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .69372  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 10:10:44  

Additional Information
 Jupiter MOID = 2.01919 au 
 T_jup = 3.298 
Orbit Covariance (6×6)
  e q tp node peri i
e 4.665484252830933E-15 -1.280517415583593E-14 -3.860754056176004E-13 3.197466250503411E-14 9.152306377235138E-14 -4.439031806342268E-14
q -1.280517415583593E-14 3.531193508806682E-14 1.208353933996808E-12 -9.124243965367613E-14 -2.283268282122938E-13 1.231298956622176E-13
tp -3.860754056176004E-13 1.208353933996808E-12 2.102509395232008E-9 2.442096683807103E-11 6.433212640320648E-10 1.146462287805605E-11
node 3.197466250503411E-14 -9.124243965367613E-14 2.442096683807103E-11 5.830896280129433E-10 -5.571768849690939E-10 -2.609075277445915E-11
peri 9.152306377235138E-14 -2.283268282122938E-13 6.433212640320648E-10 -5.571768849690939E-10 7.824404637485361E-10 2.720802733102606E-11
i -4.439031806342268E-14 1.231298956622176E-13 1.146462287805605E-11 -2.609075277445915E-11 2.720802733102606E-11 5.687662758500811E-11

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 16.9   n/a MPO450438  
diameter diameter 2.090 km 0.611 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2017AJ....154..168M)  
geometric albedo albedo 0.064   0.057 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2017AJ....154..168M)  

437851 (1999 TT278)          Discovered 1999-Oct-06 by LINEAR at Socorro
Reference: Last Updated: 2015-07-06
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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