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134554 (1999 RE169)
Classification: Main-belt Asteroid          SPK-ID: 2134554
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 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1344251262558096 4.2854e-08  
a 2.355903465972551 1.3215e-08 au
q 2.039210845112692 9.9919e-08 au
i 5.229607720527592 6.2763e-06 deg
node 328.7075489861178 5.2257e-05 deg
peri 81.35803615498108 5.7881e-05 deg
M 271.1349276663659 2.5048e-05 deg
tp 2459526.534277209985
(2021-Nov-08.03427721)
9.3114e-05 TDB
period 1320.792710941969
3.62
1.1113e-05
3.043e-08
d
yr
n .2725635877739312 2.2933e-09 deg/d
Q 2.672596086832411 1.4991e-08 au
  Orbit Determination Parameters
   # obs. used (total)      432  
   data-arc span      7174 days (19.64 yr)  
   first obs. used      1999-09-07  
   last obs. used      2019-04-29  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .55929  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 18:08:53  

Additional Information
 Earth MOID = 1.05635 au 
 Jupiter MOID = 2.68081 au 
 T_jup = 3.537 
[ 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 MPO469411  
rotation period rot_per 4.117 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.]

134554 (1999 RE169)          Discovered 1999-Sep-09 by LINEAR at Socorro
Reference: 20060907/Numbers.arcLast Updated: 2006-09-10

[ show close-approach data ]
Alternate Designations
 1999 RE169 = 2001 DY69 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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