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JPL Small-Body Database Browser
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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 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .04470941108657726 4.0266e-08  
a 5.224377015551084 8.8465e-08 au
q 4.990798195891545 2.5512e-07 au
i 2.546772907420589 5.4526e-06 deg
node 46.00426626781177 0.0001118 deg
peri 48.61508190996469 0.00013359 deg
M 272.6013085823952 7.553e-05 deg
tp 2459659.394326712772
(2022-Mar-20.89432671)
0.00092448 TDB
period 4361.643766439869
11.94
0.00011078
3.033e-07
d
yr
n .0825376897512758 2.0964e-09 deg/d
Q 5.457955835210623 9.242e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1140  
   data-arc span      24835 days (67.99 yr)  
   first obs. used      1951-12-01  
   last obs. used      2019-11-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51884  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-14 00:23:31  

Additional Information
 Earth MOID = 4.00829 au 
 Jupiter MOID = .108466 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-January); 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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