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74889 (1999 TU116)
Classification: Main-belt Asteroid          SPK-ID: 2074889
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.


Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .198082431711787 3.0156e-08  
a 2.361732353128405 7.7211e-09 au
q 1.89391466556833 7.2409e-08 au
i 4.988142601544866 4.2419e-06 deg
node 175.6764360700446 3.8011e-05 deg
peri 124.2485390756148 3.9925e-05 deg
M 354.809625437463 1.1327e-05 deg
tp 2459219.613518637243
(2021-Jan-05.11351864)
4.1747e-05 TDB
period 1325.697524620303
3.63
6.5011e-06
1.78e-08
d
yr
n .2715551574278671 1.3317e-09 deg/d
Q 2.829550040688481 9.2505e-09 au
  Orbit Determination Parameters
   # obs. used (total)      817  
   data-arc span      7671 days (21.00 yr)  
   first obs. used      1999-09-05  
   last obs. used      2020-09-05  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55588  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 21:41:56  

Additional Information
 Earth MOID = .882004 au 
 Jupiter MOID = 2.4105 au 
 T_jup = 3.519 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457194.5 (2015-Jun-21.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1983000812067585 3.0212e-08  
q 1.893122288989622 7.2442e-08 au
tp 2456567.338622884310
(2013-Oct-01.83862288)
3.8224e-05 TDB
node 175.7250754341605 3.8063e-05 deg
peri 123.9912817677613 3.9956e-05 deg
i 4.983787605094643 4.2397e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      817  
   data-arc span      7671 days (21.00 yr)  
   first obs. used      1999-09-05  
   last obs. used      2020-09-05  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55588  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 21:41:56  

Additional Information
 Jupiter MOID = 2.4105 au 
 T_jup = 3.519 
Orbit Covariance (6×6)
  e q tp node peri i
e 9.127790756919093E-16 -2.180651749749594E-15 2.789463162768678E-13 -6.239042818141414E-15 1.108388796712907E-13 -9.269524574731816E-16
q -2.180651749749594E-15 5.247835890569326E-15 -6.326113466292234E-13 1.340354065829672E-14 -2.483863354021254E-13 2.339241452926707E-15
tp 2.789463162768678E-13 -6.326113466292234E-13 1.461049987398014E-9 -1.746978267227703E-11 4.701253289619517E-10 1.15132089007312E-12
node -6.239042818141414E-15 1.340354065829672E-14 -1.746978267227703E-11 1.448774786799348E-9 -1.448487384280167E-9 2.533778584518365E-11
peri 1.108388796712907E-13 -2.483863354021254E-13 4.701253289619517E-10 -1.448487384280167E-9 1.596460928374103E-9 -2.490447507499473E-11
i -9.269524574731816E-16 2.339241452926707E-15 1.15132089007312E-12 2.533778584518365E-11 -2.490447507499473E-11 1.797467999120951E-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 16.09   n/a E2021B10  

74889 (1999 TU116)          Discovered 1999-Oct-04 by LINEAR at Socorro
Reference: 20040415/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1999 TU116 = 1999 TA222 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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