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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 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1980824317956583 3.0156e-08  
a 2.361732352662619 7.7211e-09 au
q 1.893914664996726 7.2409e-08 au
i 4.988142535851318 4.2419e-06 deg
node 175.6764360622385 3.8011e-05 deg
peri 124.2485392501905 3.9925e-05 deg
M 354.8096253190059 1.1327e-05 deg
tp 2459219.613519067806
(2021-Jan-05.11351907)		 4.1747e-05 TDB
period 1325.697524228117
3.63		 6.5011e-06
1.78e-08		 d
yr
n .2715551575082022 1.3317e-09 deg/d
Q 2.829550040328512 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.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .55587  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 13:16:10  

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 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1983000809838839 3.0212e-08  
q 1.893122289301767 7.2442e-08 au
tp 2456567.338623281701
(2013-Oct-01.83862328)		 3.8224e-05 TDB
node 175.7250752855415 3.8063e-05 deg
peri 123.9912819239675 3.9956e-05 deg
i 4.983787605253224 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.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .55587  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 13:16:10  

Additional Information
 Jupiter MOID = 2.4105 au 
 T_jup = 3.519 
Orbit Covariance (6×6)
  e q tp node peri i
e 9.127792737757158E-16 -2.180652367905222E-15 2.789463716882549E-13 -6.239048640204135E-15 1.108388816488114E-13 -9.269527638526656E-16
q -2.180652367905222E-15 5.247837567394809E-15 -6.326115046416237E-13 1.340355286141783E-14 -2.483864102656706E-13 2.339242051865505E-15
tp 2.789463716882549E-13 -6.326115046416237E-13 1.461050247930626E-9 -1.746978246252684E-11 4.701254389689024E-10 1.151321458420288E-12
node -6.239048640204135E-15 1.340355286141783E-14 -1.746978246252684E-11 1.448774760558676E-9 -1.448487356941774E-9 2.53377888736534E-11
peri 1.108388816488114E-13 -2.483864102656706E-13 4.701254389689024E-10 -1.448487356941774E-9 1.596460909407781E-9 -2.490447805788919E-11
i -9.269527638526656E-16 2.339242051865505E-15 1.151321458420288E-12 2.53377888736534E-11 -2.490447805788919E-11 1.797467994634749E-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

[ hide close-approach data ]
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
2019-Oct-20 12:46 < 00:01 Juno 0.0259497797512233 0.0259489171918627 0.0259506423108532 7.7768032003879 7.77680314010263 2458777.032196146 0.18857329123278 89.7812350781624 42.9411175014873 -88.3456890122373 90348.585258561 T 22 CATAB v2.0f-lin.ifort 2021-Apr-13 13:16:12 2021-Apr-13 13:16
2087-Sep-08 13:49 00:02 David 0.0443812231333894 0.0443799749529062 0.0443824729656183 6.01237528709628 6.01237523048047 2483572.075898461 1.8276972779203 501.671270546019 32.0467152919259 83.8805557178501 205917.06671742 T 22 CATAB v2.0f-lin.ifort 2021-Apr-13 13:16:12 2021-Apr-13 13:16

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