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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 34 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08497486641644392 3.9355e-08  
a 3.045278137310211 1.5054e-08 au
q 2.786506034391359 1.2088e-07 au
i 10.24961709567642 4.4416e-06 deg
node 318.1074823193657 1.8428e-05 deg
peri 21.26089148669163 2.7206e-05 deg
M 208.1545754849276 2.0289e-05 deg
tp 2460019.225058805236
(2023-Mar-15.72505881)
0.00011031 TDB
period 1941.059614480703
5.31
1.4393e-05
3.941e-08
d
yr
n .185465710230807 1.3752e-09 deg/d
Q 3.304050240229063 1.6333e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2350  
   data-arc span      14795 days (40.51 yr)  
   first obs. used      1980-07-17  
   last obs. used      2021-01-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .43137  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 01:06:22  

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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