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7629 Foros (1977 QK1)
Classification: Main-belt Asteroid          SPK-ID: 2007629
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 29 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2347662296943829 3.3549e-08  
a 2.36624967621643 6.5325e-09 au
q 1.810734161215545 8.115e-08 au
i 1.883624706300945 3.5042e-06 deg
node 344.9382837704743 9.2254e-05 deg
peri 25.38328151007903 9.2457e-05 deg
M 308.7663241330748 7.1986e-06 deg
tp 2459389.709219305713
(2021-Jun-24.20921931)
2.7012e-05 TDB
period 1329.502866961563
3.64
5.5055e-06
1.507e-08
d
yr
n .270777904242314 1.1213e-09 deg/d
Q 2.921765191217316 8.0661e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2076  
   data-arc span      15733 days (43.07 yr)  
   first obs. used      1977-08-19  
   last obs. used      2020-09-15  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .45502  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-12 19:53:55  

Additional Information
 Earth MOID = .809106 au 
 Jupiter MOID = 2.54601 au 
 T_jup = 3.509 
[ 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 14.37   n/a E2021B10  
diameter diameter 2.841 km 0.346 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
rotation period rot_per 3.083 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:
[Erasmus, N.; Navarro-Meza, S.; McNeill, A.; Trilling, D.E.; et al. (2020) Ap. J. Suppl. Ser. 247, A13.]
geometric albedo albedo 0.463   0.213 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  

7629 Foros (1977 QK1)          Discovered 1977-Aug-19 by Chernykh, N. S. at Nauchnyj
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 1977 QK1 = 1948 TB2 = 1977 RW2 = 1977 TQ2 = 1988 TF 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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