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2580 Smilevskia (1977 QP4)
Classification: Main-belt Asteroid          SPK-ID: 2002580
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 36 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1951327367925053 3.4487e-08  
a 2.182729330832494 4.2536e-09 au
q 1.756807382829876 7.5128e-08 au
i 1.614409729653156 2.844e-06 deg
node 119.3405023373128 0.00013342 deg
peri 221.679529692553 0.00013364 deg
M 84.91714359839978 7.2554e-06 deg
tp 2458722.662328969853
(2019-Aug-27.16232897)
2.3666e-05 TDB
period 1177.872421661834
3.22
3.4431e-06
9.427e-09
d
yr
n .3056358170709899 8.9342e-10 deg/d
Q 2.608651278835113 5.0837e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2692  
   data-arc span      42500 days (116.36 yr)  
   first obs. used      1903-09-25  
   last obs. used      2020-02-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .4218  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-22 16:25:37  

Additional Information
 Earth MOID = .748739 au 
 Jupiter MOID = 2.78244 au 
 T_jup = 3.654 
[ 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 13.1   n/a MPO502178  
diameter diameter 7.234 km 1.245 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2016AJ....152...63N)  
geometric albedo albedo 0.237   0.109 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2016AJ....152...63N)  

2580 Smilevskia (1977 QP4)          Discovered 1977-Aug-18 by Chernykh, N. at Nauchnyj
Reference: DISCOVERY.DBLast Updated: 2003-08-29

Alternate Designations
 1977 QP4 = 1948 PB = 1951 LX = 1961 TJ1 = 1974 SQ4 = 1974 TX = 1974 WF1 = A903 SD 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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