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100926 (1998 MQ)
Classification: Amor [NEO]          SPK-ID: 2100926
[ 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 189 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .4074744570600922 3.3166e-08  
a 1.783140652120851 4.241e-09 au
q 1.056556383036128 5.9229e-08 au
i 24.23796468974054 7.7308e-06 deg
node 221.1035064437548 8.9992e-06 deg
peri 138.7684167730401 9.8317e-06 deg
M 109.9642326994912 6.4797e-06 deg
tp 2458934.840239938632
(2020-Mar-26.34023994)		 1.4774e-05 TDB
period 869.7147360946858
2.38		 3.1028e-06
8.495e-09		 d
yr
n .413928826383375 1.4767e-09 deg/d
Q 2.509724921205573 5.9691e-09 au
   Orbit Determination Parameters
   # obs. used (total)      1230  
   # delay obs. used      1  
   # Doppler obs. used      2  
   data-arc span      15120 days (41.40 yr)  
   first obs. used      1979-12-19  
   last obs. used      2021-05-12  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .38884  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-13 05:57:44  

Additional Information
 Earth MOID = .129447 au 
 Jupiter MOID = 3.10232 au 
 T_jup = 3.893 
[ 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 16.65   n/a MPCxxxxx  
diameter diameter 1.174 km 0.135 urn:nasa:pds:neowise_diameters_albedos::2.0[neos] (http://adsabs.harvard.edu/abs/2012ApJ...760L..12M)  
rotation period rot_per 2.328 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:
[Warner, B.D. (2011) Minor Planet Bull. 38, 82-86.]
[Warner, B.D. (2017) Minor Planet Bull. 44, 335-344.]
[Skiff, B.A.; McLelland, K.P.; Sanborn, J.; Pravec, P.; Koehn, B.W. (2019). Minor Planet Bull. 46, 458-503.]
geometric albedo albedo 0.234   0.148 urn:nasa:pds:neowise_diameters_albedos::2.0[neos] (http://adsabs.harvard.edu/abs/2012ApJ...760L..12M)  
SMASSII spectral type spec_B S   n/a EAR-A-5-DDR-TAXONOMY-V4.0 based on a high-resolution spectrum by Xu et al. (1995) or Bus and Binzel (2002)

100926 (1998 MQ)          Discovered 1998-Jun-18 by LONEOS at Anderson Mesa
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

[ show close-approach data ]
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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