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18215 (4792 P-L)
Classification: Main-belt Asteroid          SPK-ID: 2018215
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 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 26 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .04691835471913463 2.8449e-08  
a 2.930216856806267 1.3478e-08 au
q 2.792735902914643 8.2639e-08 au
i 2.400382092772985 4.0074e-06 deg
node 14.38057026961432 8.0271e-05 deg
peri 254.6517051098091 9.4593e-05 deg
M 125.9639685233383 4.8258e-05 deg
tp 2458755.450000111998
(2019-Sep-28.95000011)
0.00024648 TDB
period 1832.09534174785
5.02
1.264e-05
3.461e-08
d
yr
n .1964963240704242 1.3557e-09 deg/d
Q 3.06769781069789 1.411e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1373  
   data-arc span      22025 days (60.30 yr)  
   first obs. used      1960-09-24  
   last obs. used      2021-01-12  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .51906  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 02:25:16  

Additional Information
 Earth MOID = 1.77786 au 
 Jupiter MOID = 1.96625 au 
 T_jup = 3.274 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457431.5 (2016-Feb-13.0) TDB
Reference: JPL 26 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .0465905644801168 2.8522e-08  
q 2.795679874607912 8.3353e-08 au
tp 2456939.549963258363
(2014-Oct-09.04996326)
0.00025109 TDB
node 14.56252943964822 8.0136e-05 deg
peri 258.1556808045593 9.4559e-05 deg
i 2.402714301537015 4.0071e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1373  
   data-arc span      22025 days (60.30 yr)  
   first obs. used      1960-09-24  
   last obs. used      2021-01-12  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .51906  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 02:25:16  

Additional Information
 Jupiter MOID = 1.96625 au 
 T_jup = 3.274 
Orbit Covariance (6×6)
  e q tp node peri i
e 8.134886880739786E-16 -2.348166006868186E-15 7.121846951991832E-13 2.686458358942646E-15 1.185959355325493E-13 -1.719072540095641E-16
q -2.348166006868186E-15 6.947675355376913E-15 -3.087871373588097E-12 -1.011665263120964E-14 -5.37655575156088E-13 6.536810687160175E-16
tp 7.121846951991832E-13 -3.087871373588097E-12 6.304574106024529E-8 -5.806916401975238E-11 1.261330456730507E-8 8.425895877851467E-13
node 2.686458358942646E-15 -1.011665263120964E-14 -5.806916401975238E-11 6.421814406510399E-9 -6.427870995162121E-9 -9.685199024272743E-11
peri 1.185959355325493E-13 -5.37655575156088E-13 1.261330456730507E-8 -6.427870995162121E-9 8.941440915734079E-9 9.694989191006938E-11
i -1.719072540095641E-16 6.536810687160175E-16 8.425895877851467E-13 -9.685199024272743E-11 9.694989191006938E-11 1.605684869051816E-11

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 14.47   n/a E2021B10  
diameter diameter 3.503 km 0.733 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.208   0.097 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

18215 (4792 P-L)          Discovered 1960-Sep-24 by van Houten, C. J., van Houten-Groeneveld, I., Gehrels, T. at Palomar
Reference: 20001013/Numbers.arcLast Updated: 2004-04-19

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Alternate Designations
 4792 P-L = 1998 FE1 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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