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JPL Small-Body Database Browser
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2239 Paracelsus (1978 RC)
Classification: Main-belt Asteroid          SPK-ID: 2002239
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 45 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1054636501954844 4.2424e-08  
a 3.195922052342226 1.5133e-08 au
q 2.85886844696197 1.4137e-07 au
i 10.93529716761045 4.1467e-06 deg
node 20.07819975245442 2.025e-05 deg
peri 2.971476114241256 2.7285e-05 deg
M 83.62890320705652 1.8689e-05 deg
tp 2458515.717878594024
(2019-Feb-01.21787859)
0.00010743 TDB
period 2086.857019684377
5.71
1.4823e-05
4.058e-08
d
yr
n .1725082248588586 1.2253e-09 deg/d
Q 3.532975657722481 1.6729e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2666  
   data-arc span      29720 days (81.37 yr)  
   first obs. used      1938-09-21  
   last obs. used      2020-02-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .4305  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-22 16:16:22  

Additional Information
 Earth MOID = 1.86212 au 
 Jupiter MOID = 1.93056 au 
 T_jup = 3.159 
[ 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 10.9   n/a MPO340709  
diameter diameter 33.978 km 0.215 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
rotation period rot_per 6.101 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Published Reference List:
[Simpson, G.; Chong, E.; Gerhardt, M.; Gorsky, S.; et al. (2013) Minor Planet Bull. 146-151.]
geometric albedo albedo 0.062   0.014 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  

2239 Paracelsus (1978 RC)          Discovered 1978-Sep-13 by Wild, P. at Zimmerwald
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 1978 RC = 1938 UT1 = 1961 UO = 1976 JX 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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