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3808 Tempel (1982 FQ2)
Classification: Main-belt Asteroid          SPK-ID: 2003808
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 39 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1480627187213128 1.5628e-08  
a 2.306608843947549 5.9875e-09 au
q 1.96508606748605 3.7288e-08 au
i 6.331987842218226 1.1098e-06 deg
node 153.1335127731167 5.59e-06 deg
peri 10.60808864390772 8.6025e-06 deg
M 24.8019998591732 7.8505e-06 deg
tp 2459112.345688862341
(2020-Sep-19.84568886)
2.7756e-05 TDB
period 1279.556172476127
3.50
4.9822e-06
1.364e-08
d
yr
n .2813475545222432 1.0955e-09 deg/d
Q 2.648131620409047 6.874e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2309  
   data-arc span      16815 days (46.04 yr)  
   first obs. used      1975-03-06  
   last obs. used      2021-03-19  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .47457  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-03 21:13:07  

Additional Information
 Earth MOID = .973175 au 
 Jupiter MOID = 2.32559 au 
 T_jup = 3.565 
[ 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 13.87   n/a MPCxxxxx  
diameter diameter 4.667 km 0.063 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
rotation period rot_per 7.45073 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 sidereal period (not synodic); Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Durech, J.; Hanus, J.; Ali-Lagoa, V. (2018) Astron. Astrophys. 617, A57.]
geometric albedo albedo 0.294   0.049 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  

3808 Tempel (1982 FQ2)          Discovered 1982-Mar-24 by Borngen, F. at Tautenburg
Reference: DISCOVERY.DBLast Updated: 2003-08-29

Alternate Designations
 1982 FQ2 = 1975 EL1 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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