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78721 (2002 TU219)
Classification: Main-belt Asteroid          SPK-ID: 2078721
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 26 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08344409439635131 3.6338e-08  
a 3.029372942348414 2.0259e-08 au
q 2.776589660585341 1.0693e-07 au
i 8.45500083053332 5.6351e-06 deg
node 324.5498852843019 2.5047e-05 deg
peri 95.34575760514295 4.4639e-05 deg
M 90.8156300351759 3.5125e-05 deg
tp 2458514.668534033968
(2019-Jan-31.16853403)
0.00018821 TDB
period 1925.872536258652
5.27
1.9319e-05
5.289e-08
d
yr
n .1869282588656483 1.8752e-09 deg/d
Q 3.282156224111487 2.195e-08 au
  Orbit Determination Parameters
   # obs. used (total)      806  
   data-arc span      7739 days (21.19 yr)  
   first obs. used      1999-02-12  
   last obs. used      2020-04-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54524  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 14:34:37  

Additional Information
 Earth MOID = 1.80564 au 
 Jupiter MOID = 1.98587 au 
 T_jup = 3.222 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457598.5 (2016-Jul-29.0) TDB
Reference: JPL 26 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08327025420338566 3.6176e-08  
q 2.776182411672963 1.0638e-07 au
tp 2458517.923221452026
(2019-Feb-03.42322145)
0.00018877 TDB
node 324.5701483514783 2.5048e-05 deg
peri 96.04289543865359 4.477e-05 deg
i 8.455391598921201 5.6353e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      806  
   data-arc span      7739 days (21.19 yr)  
   first obs. used      1999-02-12  
   last obs. used      2020-04-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54524  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 14:34:37  

Additional Information
 Jupiter MOID = 1.98587 au 
 T_jup = 3.222 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.308668878186678E-15 -3.79331247975353E-15 -9.65593004659189E-13 1.169940077798444E-15 -2.570058635432236E-13 -1.452224505034754E-15
q -3.79331247975353E-15 1.131582080778441E-14 2.618899260895788E-12 -4.741643173268626E-15 6.791087247968799E-13 4.702736693353432E-15
tp -9.65593004659189E-13 2.618899260895788E-12 3.563565778720164E-8 -4.547048019976341E-11 6.999120883763681E-9 1.903261191387698E-12
node 1.169940077798444E-15 -4.741643173268626E-15 -4.547048019976341E-11 6.274270303042533E-10 -6.290275502543854E-10 7.862777960434486E-12
peri -2.570058635432236E-13 6.791087247968799E-13 6.999120883763681E-9 -6.290275502543854E-10 2.00434214351983E-9 -7.376874756469725E-12
i -1.452224505034754E-15 4.702736693353432E-15 1.903261191387698E-12 7.862777960434486E-12 -7.376874756469725E-12 3.17565296141731E-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 14.7   n/a MPO459358  
diameter diameter 4.781 km 1.603 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.102   0.102 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

78721 (2002 TU219)          Discovered 2002-Oct-05 by LINEAR at Socorro
Reference: 20040415/Numbers.arcLast Updated: 2004-04-19

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