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24971 (1998 FG77)
Classification: Main-belt Asteroid          SPK-ID: 2024971
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 31 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1799588797447128 1.2127e-08  
a 2.367180592888015 7.2183e-09 au
q 1.941185425238463 3.0655e-08 au
i 6.871307030904177 8.5588e-07 deg
node 76.19932143026909 9.0226e-06 deg
peri 245.638780379538 1.0692e-05 deg
M 335.3926657006986 7.6962e-06 deg
tp 2459291.430082036886
(2021-Mar-17.93008204)
2.8605e-05 TDB
period 1330.28751245958
3.64
6.0847e-06
1.666e-08
d
yr
n .2706181909009978 1.2378e-09 deg/d
Q 2.793175760537567 8.5173e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2264  
   data-arc span      15650 days (42.85 yr)  
   first obs. used      1977-10-08  
   last obs. used      2020-08-13  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .46771  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 04:52:02  

Additional Information
 Earth MOID = .938496 au 
 Jupiter MOID = 2.52863 au 
 T_jup = 3.516 
[ 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 14.03   n/a E2021B10  
diameter diameter 3.853 km 0.141 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 39.9001 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 sidereal period (not synodic); Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Durech, J.; Hanus, J.; Ali-Lagoa, V. (2018) Astron. Astrophys. 617, A57.]
geometric albedo albedo 0.299   0.040 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

24971 (1998 FG77)          Discovered 1998-Mar-24 by LINEAR at Socorro
Reference: 20010606/Numbers.arcLast Updated: 2004-04-19

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