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22674 (1998 QF39)
Classification: Main-belt Asteroid          SPK-ID: 2022674
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 27 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08492148252516005 4.158e-08  
a 2.864207571653282 1.5562e-08 au
q 2.620974818408697 1.1888e-07 au
i 10.335664304637 5.1246e-06 deg
node 150.9138624910452 2.3572e-05 deg
peri 80.4340813463551 3.6858e-05 deg
M 314.4525048450215 2.8248e-05 deg
tp 2459424.509871613541
(2021-Jul-29.00987161)
0.00013923 TDB
period 1770.537622463752
4.85
1.443e-05
3.951e-08
d
yr
n .2033280713340901 1.6571e-09 deg/d
Q 3.107440324897868 1.6884e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1378  
   data-arc span      16095 days (44.07 yr)  
   first obs. used      1977-02-19  
   last obs. used      2021-03-15  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .53384  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 04:09:08  

Additional Information
 Earth MOID = 1.63508 au 
 Jupiter MOID = 1.94027 au 
 T_jup = 3.271 
[ 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 14.09   n/a E2021B10  
diameter diameter 9.305 km 0.277 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 19.3452 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:
[Pal, A.; Szakats, R.; Kiss, C.; Bodi, A.; et al. (2019) Ap. J. Supl. Ser. 247, id.26.]
geometric albedo albedo 0.051   0.011 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

22674 (1998 QF39)          Discovered 1998-Aug-17 by LINEAR at Socorro
Reference: 20010309/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1998 QF39 = 1977 DY9 = 1999 XG234 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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