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152131 (2004 TW117)
Classification: Main-belt Asteroid          SPK-ID: 2152131
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1366721768261892 4.5422e-08  
a 3.128447690169986 2.3764e-08 au
q 2.70087593426759 1.489e-07 au
i 5.653448644463451 5.2221e-06 deg
node 172.9151833904772 3.3175e-05 deg
peri 147.6446052564342 4.0628e-05 deg
M 29.9482065753274 1.9156e-05 deg
tp 2459032.364239449524
(2020-Jul-01.86423945)
0.0001085 TDB
period 2021.118481533308
5.53
2.3029e-05
6.305e-08
d
yr
n .1781191965187951 2.0295e-09 deg/d
Q 3.556019446072381 2.7012e-08 au
  Orbit Determination Parameters
   # obs. used (total)      655  
   data-arc span      9030 days (24.72 yr)  
   first obs. used      1996-03-20  
   last obs. used      2020-12-09  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .53239  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 19:25:49  

Additional Information
 Earth MOID = 1.68851 au 
 Jupiter MOID = 1.78702 au 
 T_jup = 3.192 
[ 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 15.07   n/a E2021B55  
rotation period rot_per 5.33 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 lower-limit; Incomplete or inconclusive result.
Published Reference List:
[Erasmus, N.; McNeill, A.; Mommert, N.; Trilling, D.E.; et al. (2019) Ap. J. Suppl. Series 242, A15.]

152131 (2004 TW117)          Discovered 2004-Oct-05 by LONEOS at Anderson Mesa
Reference: 20070303/Numbers.arcLast Updated: 2007-03-07

[ show close-approach data ]
Alternate Designations
 2004 TW117 = 1996 FM9 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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