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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 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 27 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .04526569001384013 4.0348e-08  
a 5.231013990498013 7.2915e-08 au
q 4.994228532746069 2.5062e-07 au
i 2.545573513825754 5.2482e-06 deg
node 46.01288479407679 8.3559e-05 deg
peri 47.24217772599935 0.00010096 deg
M 323.4466389617484 5.6129e-05 deg
tp 2459644.212909562048
(2022-Mar-05.71290956)
0.00068094 TDB
period 4369.957861745724
11.96
9.1369e-05
2.502e-07
d
yr
n .08238065706569218 1.7224e-09 deg/d
Q 5.467799448249957 7.6215e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1360  
   data-arc span      25294 days (69.25 yr)  
   first obs. used      1951-12-01  
   last obs. used      2021-03-02  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .49477  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 02:16:35  

Additional Information
 Earth MOID = 4.01131 au 
 Jupiter MOID = .10407 au 
 T_jup = 2.996 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457341.5 (2015-Nov-15.0) TDB
Reference: JPL 27 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .04600463115845824 3.986e-08  
q 4.974099257684719 2.4765e-07 au
tp 2455324.297426970840
(2010-May-07.79742697)
0.00068271 TDB
node 46.01025372214312 8.3554e-05 deg
peri 50.12908596637535 0.00010079 deg
i 2.547652760014663 5.2529e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1360  
   data-arc span      25294 days (69.25 yr)  
   first obs. used      1951-12-01  
   last obs. used      2021-03-02  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .49477  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 02:16:35  

Additional Information
 Jupiter MOID = .10407 au 
 T_jup = 2.996 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.588826844457326E-15 -9.565160513499959E-15 -5.034606284296085E-12 -1.291894615771593E-15 -4.40936374254309E-13 -3.503895322117556E-17
q -9.565160513499959E-15 6.132895089474915E-14 1.939409318146891E-11 6.604538530531424E-15 1.929493130990664E-12 4.497711735999973E-16
tp -5.034606284296085E-12 1.939409318146891E-11 4.660907283485234E-7 1.956002018707841E-11 3.845523172357008E-8 2.65846923440687E-12
node -1.291894615771593E-15 6.604538530531424E-15 1.956002018707841E-11 6.981219013281566E-9 -6.972619660681133E-9 -9.893400807216488E-11
peri -4.40936374254309E-13 1.929493130990664E-12 3.845523172357008E-8 -6.972619660681133E-9 1.015786865596164E-8 9.906615891612548E-11
i -3.503895322117556E-17 4.497711735999973E-16 2.65846923440687E-12 -9.893400807216488E-11 9.906615891612548E-11 2.759246201591194E-11

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 11.77   n/a E2021B10  
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. 2020-October); 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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