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

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 29 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .03970714813527226 4.2854e-08  
a 5.244080388069708 9.1954e-08 au
q 5.035852911267349 2.8226e-07 au
i 43.4236422863962 5.6178e-06 deg
node 200.2226321015247 6.0953e-06 deg
peri 128.0371857976499 7.8023e-05 deg
M 281.7572174953837 8.008e-05 deg
tp 2459953.832115186926
(2023-Jan-09.33211519)
0.00098352 TDB
period 4386.341467943632
12.01
0.00011537
3.159e-07
d
yr
n .0820729536519126 2.1587e-09 deg/d
Q 5.452307864872068 9.5605e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1888  
   data-arc span      24381 days (66.75 yr)  
   first obs. used      1953-09-16  
   last obs. used      2020-06-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .41924  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jun-23 17:32:39  

Additional Information
 Earth MOID = 4.09409 au 
 Jupiter MOID = .0982163 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 10.0   n/a MPO473942  
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 13.73 h n/a LCDB (Rev. 2019-August); 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:
[Stephens, R.D.; Warner, B.D. (2019) Minor Planet Bull. 46-4, submitted. (Trojans Gaggle) http://www.planetarysciences.org/lightcurves.html]
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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