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357022 (1999 YG3)
Classification: Apollo [NEO, PHA]          SPK-ID: 2357022
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 78 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3294740475117882 4.632e-08  
a 1.284772776427457 1.8547e-09 au
q .861473489644945 5.8965e-08 au
i 34.51886424882768 2.6127e-05 deg
node 293.2780817179375 8.4957e-06 deg
peri 250.2266600925444 1.6143e-05 deg
M 90.92291432191963 1.3849e-05 deg
tp 2459066.158942678286
(2020-Aug-04.65894268)
2.0387e-05 TDB
period 531.9097061119796
1.46
1.1518e-06
3.153e-09
d
yr
n .6768066005627869 1.4655e-09 deg/d
Q 1.708072063209969 2.4657e-09 au
  Orbit Determination Parameters
   # obs. used (total)      311  
   data-arc span      7164 days (19.61 yr)  
   first obs. used      1999-12-20  
   last obs. used      2019-08-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54871  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-24 06:42:26  

Additional Information
 Earth MOID = .0418666 au 
 Jupiter MOID = 3.58629 au 
 T_jup = 4.823 
[ 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 19.0   n/a MPO437508  
diameter diameter 0.432 km 0.121 urn:nasa:pds:neowise_diameters_albedos::2.0[neos] (http://adsabs.harvard.edu/abs/2017AJ....154..168M)  
geometric albedo albedo 0.217   0.093 urn:nasa:pds:neowise_diameters_albedos::2.0[neos] (http://adsabs.harvard.edu/abs/2017AJ....154..168M)  
SMASSII spectral type spec_B S   n/a Binzel et al. (2001) Icarus 151, 139-149  

357022 (1999 YG3)          Discovered 1999-Dec-20 by LINEAR at Socorro
Reference: 20130327/Numbers.arcLast Updated: 2013-03-29

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Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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