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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 2459000.5 (2020-May-31.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .197887383328484 3.018e-08  
a 2.361061942056632 7.7301e-09 au
q 1.893837572466577 7.2408e-08 au
i 4.988101956596028 4.242e-06 deg
node 175.6871775439361 3.8015e-05 deg
peri 124.2886786572639 3.9931e-05 deg
M 300.4372676989087 1.1235e-05 deg
tp 2459219.745964912604
(2021-Jan-05.24596491)
4.1759e-05 TDB
period 1325.133087742706
3.63
6.5077e-06
1.782e-08
d
yr
n .2716708256174034 1.3342e-09 deg/d
Q 2.828286311646688 9.2598e-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 = .883889 au 
 Jupiter MOID = 2.41246 au 
 T_jup = 3.519 
[ show covariance matrix ]

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

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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 21 CATAB v2.0f-lin.ifort 2020-Nov-12 21:41:58 2020-Nov-12 21:41
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 21 CATAB v2.0f-lin.ifort 2020-Nov-12 21:41:58 2020-Nov-12 21:41

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