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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 ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 185 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .4074179258573802 3.3285e-08  
a 1.78298906568867 4.2245e-09 au
q 1.056567358719404 5.9435e-08 au
i 24.23865936967699 7.8553e-06 deg
node 221.1091470870976 9.0544e-06 deg
peri 138.7563710257484 9.8964e-06 deg
M 27.18811217900495 6.2078e-06 deg
tp 2458934.825314908717
(2020-Mar-26.32531491)
1.4779e-05 TDB
period 869.6038355733775
2.38
3.0906e-06
8.462e-09
d
yr
n .4139816147000228 1.4713e-09 deg/d
Q 2.509410772657937 5.9457e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1216  
   # delay obs. used      1  
   # Doppler obs. used      2  
   data-arc span      14441 days (39.54 yr)  
   first obs. used      1979-12-19  
   last obs. used      2019-07-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .38637  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-05 06:21:12  

Additional Information
 Earth MOID = .130426 au 
 Jupiter MOID = 3.10156 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 16.6   n/a MPO436470  
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. 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:
[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. 46-4, in press.]
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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