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4354 Euclides (2142 P-L)
Classification: Main-belt Asteroid          SPK-ID: 2004354
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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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 .205739053838942 3.0019e-08  
a 2.799572759777599 1.2269e-08 au
q 2.22359130902768 8.3015e-08 au
i 7.413438579680887 4.0382e-06 deg
node 192.4673094478377 2.7282e-05 deg
peri 244.1329763596686 2.928e-05 deg
M 271.2055100887833 1.2464e-05 deg
tp 2459622.506928746414
(2022-Feb-12.00692875)
6.0578e-05 TDB
period 1710.945065404537
4.68
1.1247e-05
3.079e-08
d
yr
n .2104100285153699 1.3832e-09 deg/d
Q 3.375554210527519 1.4793e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1845  
   data-arc span      24278 days (66.47 yr)  
   first obs. used      1954-07-02  
   last obs. used      2020-12-20  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .46294  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-12 16:14:42  

Additional Information
 Earth MOID = 1.24989 au 
 Jupiter MOID = 1.9672 au 
 T_jup = 3.282 
[ 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 13.53   n/a MPCxxxxx  
diameter diameter 12.339 km 0.282 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.051   0.005 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

4354 Euclides (2142 P-L)          Discovered 1960-Sep-24 by van Houten and Gehrels at Palomar
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ hide close-approach data ]
Close-Approach Data   ...sorted by Date/Time (TDB)
Date/Time (TDB) Time Uncertainty
(days_HH:MM)
Body Nominal Distance (au) Minimum Distance (au) Maximum Distance (au) V-relative (km/s) V-infinity (km/s) JD (TDB) Time Uncertainty (minutes) Semi-major axis (km) Semi-minor axis (km) range-LOV angle (deg) N-sigma BP Orbit Ref. Reference Modified
2020-Mar-15 10:43 < 00:01 Jupiter 1.97389673590717 1.97389637068376 1.97389710113059 1.7497766995792 1.48441731561698 2458923.946502143 0.189037823415631 42.7859409908306 27.0212476318553 -70.5659279029764 3037575.40347483 T 34 CATAB v2.0f-lin.ifort 2021-Apr-12 16:14:59 2021-Apr-12 16:15
2043-Apr-15 04:35 < 00:01 Jupiter 1.97528937162376 1.97528902644621 1.97528971680131 1.83266637023105 1.58147000144137 2467354.690939350 0.557348157057806 54.8570402550835 32.428085057701 79.220791138355 2774667.77167806 T 34 CATAB v2.0f-lin.ifort 2021-Apr-12 16:14:59 2021-Apr-12 16:15
2174-Aug-11 01:40 00:03 Jupiter 1.97897184478762 1.97897139221807 1.97897229735672 1.80113447330649 1.54533575304452 2515319.569446694 2.8722630361429 84.1984098739088 29.6225259800622 -43.6809993816583 1741592.53494877 T 34 CATAB v2.0f-lin.ifort 2021-Apr-12 16:14:59 2021-Apr-12 16:15
2197-Sep-08 12:23 00:03 Jupiter 1.9639671501555 1.96396667992637 1.96396762038418 1.69723085531759 1.42057374571653 2523749.015826130 3.26644266109786 69.7924656079624 47.4342234784345 -16.6105190772166 1565509.31910902 T 34 CATAB v2.0f-lin.ifort 2021-Apr-12 16:14:59 2021-Apr-12 16:15

Alternate Designations
 2142 P-L = 1971 BL2 = 1979 YO6 = 1983 RF 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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