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JPL Small-Body Database Browser
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2878 Panacea (1980 RX)
Classification: Main-belt Asteroid          SPK-ID: 2002878
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.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 29 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08475168260855598 3.9875e-08  
a 3.045937247079619 1.5544e-08 au
q 2.787788940269549 1.2253e-07 au
i 10.24919344834794 4.4854e-06 deg
node 318.1063795371361 1.9521e-05 deg
peri 21.19564953774557 2.8808e-05 deg
M 171.1418121458377 2.1002e-05 deg
tp 2458077.432458418340
(2017-Nov-19.93245842)
0.00011322 TDB
period 1941.689823210626
5.32
1.4863e-05
4.069e-08
d
yr
n .1854055141540229 1.4192e-09 deg/d
Q 3.30408555388969 1.6861e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2037  
   data-arc span      14447 days (39.55 yr)  
   first obs. used      1980-07-17  
   last obs. used      2020-02-05  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .44623  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-22 16:33:25  

Additional Information
 Earth MOID = 1.78066 au 
 Jupiter MOID = 2.04322 au 
 T_jup = 3.209 
[ 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 11.9   n/a MPO384777  
diameter diameter 15.542 km 0.239 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.153   0.035 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

2878 Panacea (1980 RX)          Discovered 1980-Sep-07 by Bowell, E. 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
 1980 RX = 1938 UE 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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