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187974 (2001 QV118)
Classification: Main-belt Asteroid          SPK-ID: 2187974
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1763124091197966 7.1981e-08  
a 2.517541346104757 9.8136e-09 au
q 2.073667566314332 1.813e-07 au
i 12.58976952527846 6.9004e-06 deg
node 203.2340084039081 1.7426e-05 deg
peri 178.5273974722855 2.2223e-05 deg
M 288.7984669213777 1.3435e-05 deg
tp 2459489.069341592800
(2021-Oct-01.56934159)
5.5457e-05 TDB
period 1459.027052952582
3.99
8.5311e-06
2.336e-08
d
yr
n .2467397703637369 1.4427e-09 deg/d
Q 2.961415125895182 1.1544e-08 au
  Orbit Determination Parameters
   # obs. used (total)      678  
   data-arc span      8772 days (24.02 yr)  
   first obs. used      1996-06-20  
   last obs. used      2020-06-26  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .54967  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 21:57:34  

Additional Information
 Earth MOID = 1.07557 au 
 Jupiter MOID = 2.49644 au 
 T_jup = 3.403 
[ 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 16.38   n/a E2021B55  
diameter diameter 1.688 km 0.292 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 16.578 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:
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]
geometric albedo albedo 0.171   0.035 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

187974 (2001 QV118)          Discovered 2001-Aug-17 by LINEAR at Socorro
Reference: 20080618/Numbers.arcLast Updated: 2008-06-20

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