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24979 (1998 JB2)
Classification: Main-belt Asteroid          SPK-ID: 2024979
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 .1021423184041189 9.7072e-09  
a 2.387331440988228 8.0911e-09 au
q 2.143483872806645 2.6901e-08 au
i 5.540383444212294 9.6848e-07 deg
node 60.95496028938219 4.6318e-06 deg
peri 245.0880322777558 1.338e-05 deg
M 344.2240903795678 1.3771e-05 deg
tp 2459259.541775925405
(2021-Feb-14.04177593)
5.1552e-05 TDB
period 1347.309907608575
3.69
6.8494e-06
1.875e-08
d
yr
n .2671991039084591 1.3584e-09 deg/d
Q 2.631179009169811 8.9175e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2176  
   data-arc span      10644 days (29.14 yr)  
   first obs. used      1991-07-18  
   last obs. used      2020-09-07  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .48189  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 04:52:08  

Additional Information
 Earth MOID = 1.13349 au 
 Jupiter MOID = 2.55349 au 
 T_jup = 3.521 
[ 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 14.25   n/a E2021B10  
diameter diameter 4.368 km 0.090 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.154   0.025 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

24979 (1998 JB2)          Discovered 1998-May-01 by JPL/GEODSS NEAT at Haleakala
Reference: 20010606/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1998 JB2 = 1999 XA23 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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