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48396 (1981 EP14)
Classification: Main-belt Asteroid          SPK-ID: 2048396
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 28 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1292005212416826 2.9532e-08  
a 2.224597394520291 7.4567e-09 au
q 1.937178251595381 6.4738e-08 au
i 5.210316452716792 3.6529e-06 deg
node 228.0904321819546 4.2349e-05 deg
peri 19.64425025159117 4.5885e-05 deg
M 241.1171370045956 1.9076e-05 deg
tp 2459400.714037915250
(2021-Jul-05.21403792)
6.4844e-05 TDB
period 1211.924494576307
3.32
6.0934e-06
1.668e-08
d
yr
n .2970482085402996 1.4935e-09 deg/d
Q 2.512016537445202 8.4201e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1293  
   data-arc span      14305 days (39.16 yr)  
   first obs. used      1981-02-09  
   last obs. used      2020-04-10  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .49261  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 23:37:37  

Additional Information
 Earth MOID = .924547 au 
 Jupiter MOID = 2.50597 au 
 T_jup = 3.630 
[ 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 15.2   n/a MPO452830  
diameter diameter 2.485 km 0.308 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.314   0.118 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

48396 (1981 EP14)          Discovered 1981-Mar-01 by Bus, S. J. at Siding Spring
Reference: 20021120/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1981 EP14 = 1999 VK31 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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