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102405 (1999 TP172)
Classification: Mars-crossing Asteroid          SPK-ID: 2102405
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 .3018074067537351 6.3511e-08  
a 2.292517268788251 7.4365e-09 au
q 1.600618576957114 1.4411e-07 au
i 1.765128598912003 4.2098e-06 deg
node 172.051876993255 0.00017628 deg
peri 209.957240310965 0.00017653 deg
M 41.11928754794889 1.2967e-05 deg
tp 2459055.686039557938
(2020-Jul-25.18603956)
4.5158e-05 TDB
period 1267.848468880947
3.47
6.169e-06
1.689e-08
d
yr
n .2839456045703553 1.3816e-09 deg/d
Q 2.984415960619388 9.6809e-09 au
  Orbit Determination Parameters
   # obs. used (total)      598  
   data-arc span      12909 days (35.34 yr)  
   first obs. used      1985-09-15  
   last obs. used      2021-01-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52677  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 08:31:21  

Additional Information
 Earth MOID = .602688 au 
 Jupiter MOID = 2.47504 au 
 T_jup = 3.535 
[ 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 16.3   n/a MPO266358  
rotation period rot_per 4.329 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]
[Erasmus, N.; McNeill, A.; Mommert, N.; Trilling, D.E.; et al. (2019) Ap. J. Suppl. Series 242, A15.]

102405 (1999 TP172)          Discovered 1999-Oct-10 by LINEAR at Socorro
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

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Alternate Designations
 1999 TP172 = 1985 RO5 = 1985 SZ3 = 2000 AP100 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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