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JPL Small-Body Database Browser
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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 | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 31 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1483845540329436 3.1431e-08  
a 2.30655754522487 6.2103e-09 au
q 1.964300032525357 7.3462e-08 au
i 6.331714011559874 3.4547e-06 deg
node 153.1434118281153 2.9352e-05 deg
peri 10.68206927496345 3.1374e-05 deg
M 215.9496617506724 1.1442e-05 deg
tp 2459112.484307187371
(2020-Sep-19.98430719)
4.1412e-05 TDB
period 1279.513486934238
3.50
5.1676e-06
1.415e-08
d
yr
n .281356940490384 1.1363e-09 deg/d
Q 2.648815057924384 7.1319e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1962  
   data-arc span      16338 days (44.73 yr)  
   first obs. used      1975-03-06  
   last obs. used      2019-11-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .48989  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-03 20:53:47  

Additional Information
 Earth MOID = .973135 au 
 Jupiter MOID = 2.32724 au 
 T_jup = 3.565 
[ 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 13.8   n/a MPO350831  
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. 2019-January); 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

[ hide close-approach data ]
Close-Approach Data   ...sorted by Date/Time (TDB)
Date/Time (TDB) Time Uncertainty
(days_HH:MM)
Body Nominal Distance (au) Minimum Distance (au) Maximum Distance (au) V-relative (km/s) V-infinity (km/s) JD (TDB) Time Uncertainty (minutes) Semi-major axis (km) Semi-minor axis (km) range-LOV angle (deg) N-sigma BP Orbit Ref. Reference Modified
2165-Aug-15 23:46 < 00:01 Eunom 0.0337876817208279 0.0337713909084724 0.0338039728282068 7.93869971537458 7.93869966304032 2512037.490207601 0.346378286812778 827.316718221234 38.1087389072259 -10.9950547666658 25987.9620939029 T 31 CATAB v2.0f-lin.ifort 2019-Dec-03 20:54:02 2019-Dec-03 20:54

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