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12929 (1999 TZ1)
Classification: Jupiter Trojan          SPK-ID: 2012929
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 37 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .03998989534376292 2.1088e-08  
a 5.24411294263954 8.5442e-08 au
q 5.034401414892512 1.7325e-07 au
i 43.42346297798893 5.5919e-07 deg
node 200.2220544561106 2.4095e-06 deg
peri 128.1723770165113 3.1391e-05 deg
M 298.0708747144842 3.4614e-05 deg
tp 2459955.068943881492
(2023-Jan-10.56894388)
0.0004289 TDB
period 4386.382312764079
12.01
0.0001072
2.935e-07
d
yr
n .08207218941049077 2.0058e-09 deg/d
Q 5.453824470386568 8.8858e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2170  
   data-arc span      24657 days (67.51 yr)  
   first obs. used      1953-09-16  
   last obs. used      2021-03-20  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .40763  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-04 01:19:44  

Additional Information
 Earth MOID = 4.09121 au 
 Jupiter MOID = .0981237 au 
 T_jup = 2.449 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 10.12   n/a E2021B10  
diameter diameter 54.077 km 0.624 urn:nasa:pds:neowise_diameters_albedos::2.0[jupiter_trojans] (http://adsabs.harvard.edu/abs/2012ApJ...759...49G)  
rotation period rot_per 9.272 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:
[Mottola, S.; Di Martino, M.; Erikson, A.; Gonano-Beurer, M.; et al. (2011) Astron. J. 141, A170.]
[Stephens, R.D.; Warner, B.D. (2020) Minor Planet Bull. 47, 285-289.]
geometric albedo albedo 0.066   0.011 urn:nasa:pds:neowise_diameters_albedos::2.0[jupiter_trojans] (http://adsabs.harvard.edu/abs/2012ApJ...759...49G)  

12929 (1999 TZ1)          Discovered 1999-Oct-02 by Juels, C. W. at Fountain Hills
Reference: 19991222/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1999 TZ1 = 1992 CF6 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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