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17874 (1998 YM3)
Classification: Jupiter Trojan          SPK-ID: 2017874
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .04494943619981385 4.0329e-08  
a 5.228544835777799 8.7522e-08 au
q 4.993524693264139 2.5651e-07 au
i 2.546039453887309 5.4497e-06 deg
node 46.01270678985698 0.00011039 deg
peri 47.65681222372944 0.00013179 deg
M 306.5487511614272 7.4465e-05 deg
tp 2459648.873173308863
(2022-Mar-10.37317331)
0.00090872 TDB
period 4366.864151221641
11.96
0.00010965
3.002e-07
d
yr
n .08243901974813875 2.07e-09 deg/d
Q 5.46356497829146 9.1456e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1156  
   data-arc span      24901 days (68.18 yr)  
   first obs. used      1951-12-01  
   last obs. used      2020-02-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .517  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-22 22:14:03  

Additional Information
 Earth MOID = 4.01089 au 
 Jupiter MOID = .105763 au 
 T_jup = 2.996 
[ 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 11.7   n/a MPO296281  
diameter diameter 17.399 km 0.738 urn:nasa:pds:neowise_diameters_albedos::2.0[jupiter_trojans] (http://adsabs.harvard.edu/abs/2012ApJ...759...49G)  
rotation period rot_per 9.81 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[French, L.M.; Stephens, R.D.; Coley, D.; Wasserman, L.; Sieben, J. (2015) Icarus 254, 1-17.]
geometric albedo albedo 0.134   0.012 urn:nasa:pds:neowise_diameters_albedos::2.0[jupiter_trojans] (http://adsabs.harvard.edu/abs/2012ApJ...759...49G)  

17874 (1998 YM3)          Discovered 1998-Dec-17 by Kobayashi, T. at Oizumi
Reference: 20001013/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1998 YM3 = 2000 DG83 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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