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3155 Lee (1984 SP3)
Classification: Main-belt Asteroid          SPK-ID: 2003155
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 41 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1000000225964957 3.2e-08  
a 2.342515269809809 6.2671e-09 au
q 2.108263689896192 7.5358e-08 au
i 7.195815057185769 3.8413e-06 deg
node 28.43717468279079 2.3169e-05 deg
peri 29.20809175779814 3.0094e-05 deg
M 2.511976260573401 1.7505e-05 deg
tp 2459191.362337723648
(2020-Dec-07.86233772)
6.3685e-05 TDB
period 1309.549963157553
3.59
5.2553e-06
1.439e-08
d
yr
n .2749036005712812 1.1032e-09 deg/d
Q 2.576766849723426 6.8938e-09 au
  Orbit Determination Parameters
   # obs. used (total)      3136  
   data-arc span      32516 days (89.02 yr)  
   first obs. used      1932-03-05  
   last obs. used      2021-03-14  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .36733  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-12 14:45:42  

Additional Information
 Earth MOID = 1.12182 au 
 Jupiter MOID = 2.71334 au 
 T_jup = 3.546 
[ 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 12.47   n/a E2021B10  
rotation period rot_per 8.310 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Published Reference List:
[Warner, B.D. (2003) Minor Planet Bull. 30, 21-24.]
[Clark, M. (2007) Minor Planet Bull. 34, 19-22.]
[Ryan, W.H.; Ryan, E.V. (2007) UNPUBLISHED.]
SMASSII spectral type spec_B V   n/a EAR-A-5-DDR-TAXONOMY-V4.0 based on a high-resolution spectrum by Xu et al. (1995) or Bus and Binzel (2002)

3155 Lee (1984 SP3)          Discovered 1984-Sep-28 by Skiff, B. A. at Flagstaff (AM)
Discovered at the Anderson Mesa station, which is operated by the Lowell Observatory.
Reference: DISCOVERY.DBLast Updated: 2003-08-29

Alternate Designations
 1984 SP3 = 1932 EG = 1934 VN = 1941 SR1 = 1968 DT = 1970 XK = 1972 HB = 1977 UE2 = 1977 UK1 = 1982 BD5 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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