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29982 Sarahwu (1999 TT31)
Classification: Main-belt Asteroid          SPK-ID: 2029982
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

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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.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .03072667812169828 4.7877e-08  
a 2.237068996666019 7.4199e-09 au
q 2.168331297669432 1.0614e-07 au
i 6.128822494264528 5.2772e-06 deg
node 8.243188383056065 3.3591e-05 deg
peri 173.1101674585365 7.308e-05 deg
M 259.1405001192089 6.6412e-05 deg
tp 2459342.898461787155
(2021-May-08.39846179)
0.00022602 TDB
period 1222.130254354469
3.35
6.0803e-06
1.665e-08
d
yr
n .2945676197093676 1.4655e-09 deg/d
Q 2.305806695662607 7.6479e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1022  
   data-arc span      18056 days (49.43 yr)  
   first obs. used      1971-04-16  
   last obs. used      2020-09-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55137  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Oct-22 17:20:25  

Additional Information
 Earth MOID = 1.16968 au 
 Jupiter MOID = 2.65124 au 
 T_jup = 3.629 
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Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.4   n/a MPO435971  

29982 Sarahwu           Discovered 1999 Oct. 4 by the Lincoln Laboratory Near-Earth Asteroid Research Team at Socorro.
Junyi (Sarah) Wu (b. 1996) was awarded second place in the 2013 Intel International Science and Engineering Fair for her medicine and health sciences project. She attends the Assumption College School, Brantford, Ontario, Canada.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: MPC batch dated 2014-05-14Last Updated: 2014-05-15
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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