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357798 (2005 TW78)
Classification: Main-belt Asteroid          SPK-ID: 2357798
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 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1797166958132652 8.7952e-08  
a 3.111009472869874 3.6884e-08 au
q 2.551909129761933 2.6961e-07 au
i 24.39661087535853 8.8244e-06 deg
node 64.2076240795635 1.4456e-05 deg
peri 321.5043600635603 2.1515e-05 deg
M 250.3149909178375 2.0384e-05 deg
tp 2459611.153993944481
(2022-Jan-31.65399394)
0.00012006 TDB
period 2004.243238520768
5.49
3.5643e-05
9.759e-08
d
yr
n .1796189170460658 3.1943e-09 deg/d
Q 3.670109815977816 4.3512e-08 au
  Orbit Determination Parameters
   # obs. used (total)      268  
   data-arc span      5430 days (14.87 yr)  
   first obs. used      2004-07-18  
   last obs. used      2019-05-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .60625  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-26 00:32:37  

Additional Information
 Earth MOID = 1.59594 au 
 Jupiter MOID = 1.83034 au 
 T_jup = 3.058 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457125.5 (2015-Apr-13.0) TDB
Reference: JPL 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1815405103261984 8.7936e-08  
q 2.543673792316128 2.6908e-07 au
tp 2457612.283156956953
(2016-Aug-11.78315696)
9.9697e-05 TDB
node 64.21682080639184 1.4453e-05 deg
peri 322.0215793976021 2.1305e-05 deg
i 24.41136139916513 8.8308e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      268  
   data-arc span      5430 days (14.87 yr)  
   first obs. used      2004-07-18  
   last obs. used      2019-05-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .60625  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-26 00:32:37  

Additional Information
 Jupiter MOID = 1.83034 au 
 T_jup = 3.058 
Orbit Covariance (6×6)
  e q tp node peri i
e 7.732685737003914E-15 -2.351135171046139E-14 3.785490997015828E-12 -8.57091537913613E-15 5.036982424336713E-13 1.145162756738561E-14
q -2.351135171046139E-14 7.240256970820572E-14 -1.060271326668755E-11 2.859144697729838E-14 -1.437056754600155E-12 -3.640427607858611E-14
tp 3.785490997015828E-12 -1.060271326668755E-11 9.939519905168232E-9 -5.099269289725108E-12 1.589191904691719E-9 -1.01896129350496E-11
node -8.57091537913613E-15 2.859144697729838E-14 -5.099269289725108E-12 2.08876697827307E-10 -1.90603863711739E-10 -4.433054596023801E-11
peri 5.036982424336713E-13 -1.437056754600155E-12 1.589191904691719E-9 -1.90603863711739E-10 4.538850846711022E-10 3.860479279855584E-11
i 1.145162756738561E-14 -3.640427607858611E-14 -1.01896129350496E-11 -4.433054596023801E-11 3.860479279855584E-11 7.798335710061389E-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 15.2   n/a MPO437511  
diameter diameter 5.781 km 0.238 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.058   0.012 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

357798 (2005 TW78)          Discovered 2005-Oct-07 by CSS at Catalina
Reference: 20130327/Numbers.arcLast Updated: 2013-03-29

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