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5574 Seagrave (1984 FS)
Classification: Main-belt Asteroid          SPK-ID: 2005574
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 45 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1127763117185372 2.2071e-08  
a 2.641280981677448 9.4983e-09 au
q 2.343407054351549 5.9711e-08 au
i 14.0050026932961 7.7466e-07 deg
node 144.8809145014349 4.8422e-06 deg
peri 346.946110833287 1.3546e-05 deg
M 233.4097755237375 1.408e-05 deg
tp 2459751.838096482639
6.2606e-05 TDB
period 1567.907123594432
n .2296054368161163 1.2385e-09 deg/d
Q 2.939154909003348 1.0569e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2765  
   data-arc span      20140 days (55.14 yr)  
   first obs. used      1965-11-28  
   last obs. used      2021-01-18  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .42418  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-12 17:42:22  

Additional Information
 Earth MOID = 1.35902 au 
 Jupiter MOID = 2.09367 au 
 T_jup = 3.344 
[ 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 12.37   n/a E2021B10  
diameter diameter 8.852 km 0.049 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (  
rotation period rot_per 4.6641 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Published Reference List:
[Behrend, R. (2010) Observatoire de Geneve web site,]
[Pravec, P.; Wolf, M.; Sarounova, L. (2019)]
geometric albedo albedo 0.297   0.014 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (  

5574 Seagrave           Discovered 1984 Mar. 20 by Z. Vavrova at Klet.
Frank Evans Seagrave (1860-1934) was an American amateur astronomer, who observed the Sun, variable stars, novae, comets and minor planets from his private observatory. He was a prodigious computer of orbits of minor planets and comets, including the 1910 return of 1P/Halley.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: MPC batch dated 2014-09-09Last Updated: 2014-11-10

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Close-Approach Data   ...sorted by Date/Time (TDB)
Date/Time (TDB) Time Uncertainty
Body Nominal Distance (au) Minimum Distance (au) Maximum Distance (au) V-relative (km/s) V-infinity (km/s) JD (TDB) Time Uncertainty (minutes) Semi-major axis (km) Semi-minor axis (km) range-LOV angle (deg) N-sigma BP Orbit Ref. Reference Modified
2126-Sep-28 13:35 00:02 Hebe 0.0176614357296559 0.0176567484672681 0.0176661295933724 4.91599674614512 4.91599667454398 2497836.065904102 1.9126434311901 597.603100304268 48.0679503172578 67.4095797316573 50754.2975175602 T 45 CATAB v2.0f-lin.ifort 2021-Apr-12 17:43:21 2021-Apr-12 17:43

Alternate Designations
 1984 FS = 1928 DH = 1965 WM 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
FirstGov 2021-Apr-20 02:33 UT
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