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152779 (1999 RL169)
Classification: Main-belt Asteroid          SPK-ID: 2152779
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 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1703133504439492 5.8852e-08  
a 2.771794940921015 2.1784e-08 au
q 2.299721257789169 1.663e-07 au
i 13.44856664684867 5.9357e-06 deg
node 336.6866043027402 2.3288e-05 deg
peri 325.1851368179485 2.8038e-05 deg
M 254.7006338976522 2.09e-05 deg
tp 2459693.518628815851
(2022-Apr-24.01862882)
0.00010071 TDB
period 1685.543920570184
4.61
1.987e-05
5.44e-08
d
yr
n .2135809073893605 2.5178e-09 deg/d
Q 3.243868624052861 2.5494e-08 au
  Orbit Determination Parameters
   # obs. used (total)      552  
   data-arc span      7889 days (21.60 yr)  
   first obs. used      1999-07-16  
   last obs. used      2021-02-19  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .56121  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 19:28:37  

Additional Information
 Earth MOID = 1.29639 au 
 Jupiter MOID = 2.10067 au 
 T_jup = 3.276 
[ 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 15.06   n/a E2021B55  
rotation period rot_per 3.968 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.]

152779 (1999 RL169)          Discovered 1999-Sep-09 by LINEAR at Socorro
Reference: 20070402/Numbers.arcLast Updated: 2007-04-04
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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