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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.


Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 35 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08497486774406803 3.8309e-08  
a 3.045278122428288 1.4877e-08 au
q 2.78650601673104 1.1809e-07 au
i 10.24961635415535 4.3284e-06 deg
node 318.1074838246789 1.8333e-05 deg
peri 21.26089182668425 2.6926e-05 deg
M 208.1545741190737 2.0119e-05 deg
tp 2460019.225060168169
(2023-Mar-15.72506017)
0.00010949 TDB
period 1941.0596002521
5.31
1.4224e-05
3.894e-08
d
yr
n .1854657115903314 1.3591e-09 deg/d
Q 3.304050228125535 1.6141e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2442  
   data-arc span      14842 days (40.64 yr)  
   first obs. used      1980-07-17  
   last obs. used      2021-03-06  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .42464  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-12 14:24:31  

Additional Information
 Earth MOID = 1.77752 au 
 Jupiter MOID = 2.04353 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 11.93   n/a E2020-QM5  
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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