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135912 (2002 TP121)
Classification: Main-belt Asteroid          SPK-ID: 2135912
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 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1736447836247704 3.7855e-08  
a 2.80625917200403 1.8269e-08 au
q 2.318966905286363 1.0754e-07 au
i 6.680984458672913 5.858e-06 deg
node 285.4586632323509 4.0494e-05 deg
peri 331.6040084142015 4.6447e-05 deg
M 65.78146294568035 2.0136e-05 deg
tp 2458886.744664002155
(2020-Feb-07.24466400)
9.7417e-05 TDB
period 1717.078275569752
4.70
1.6768e-05
4.591e-08
d
yr
n .2096584675969689 2.0473e-09 deg/d
Q 3.293551438721696 2.1441e-08 au
  Orbit Determination Parameters
   # obs. used (total)      783  
   data-arc span      7615 days (20.85 yr)  
   first obs. used      2000-02-02  
   last obs. used      2020-12-08  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .53294  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 18:15:08  

Additional Information
 Earth MOID = 1.3047 au 
 Jupiter MOID = 1.80065 au 
 T_jup = 3.291 
[ 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 14.91   n/a E2021B55  
diameter diameter 6.704 km 0.118 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 589.346 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:
[Pal, A.; Szakats, R.; Kiss, C.; Bodi, A.; et al. (2019) Ap. J. Supl. Ser. 247, id.26.]
geometric albedo albedo 0.057   0.006 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

135912 (2002 TP121)          Discovered 2002-Oct-03 by NEAT at Palomar
Reference: 20060907/Numbers.arcLast Updated: 2006-09-10

[ show close-approach data ]
Alternate Designations
 2002 TP121 = 2005 ET196 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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