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48406 (1981 EQ47)
Classification: Main-belt Asteroid          SPK-ID: 2048406
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1518535190970725 4.2745e-08  
a 2.431398895370771 7.4895e-09 au
q 2.062182416779985 1.0376e-07 au
i 1.653972108357822 3.5857e-06 deg
node 127.1487030346869 0.00014934 deg
peri 279.5452444989801 0.00014994 deg
M 246.9455159078844 1.2147e-05 deg
tp 2459435.378604245018
(2021-Aug-08.87860424)
4.6952e-05 TDB
period 1384.786271729356
3.79
6.3984e-06
1.752e-08
d
yr
n .2599679151573499 1.2012e-09 deg/d
Q 2.800615373961558 8.6269e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1396  
   data-arc span      13970 days (38.25 yr)  
   first obs. used      1981-02-09  
   last obs. used      2019-05-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53782  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 04:38:03  

Additional Information
 Earth MOID = 1.07259 au 
 Jupiter MOID = 2.5709 au 
 T_jup = 3.491 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456238.5 (2012-Nov-07.0) TDB
Reference: JPL 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1522031774034167 4.2667e-08  
q 2.060212639652867 1.0341e-07 au
tp 2456669.555866075854
(2014-Jan-12.05586608)
4.6966e-05 TDB
node 127.1769911568922 0.00014957 deg
peri 279.867578862293 0.00015016 deg
i 1.652610586750334 3.5838e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1396  
   data-arc span      13970 days (38.25 yr)  
   first obs. used      1981-02-09  
   last obs. used      2019-05-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53782  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 04:38:03  

Additional Information
 Jupiter MOID = 2.5709 au 
 T_jup = 3.491 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.820512656170365E-15 -4.403778511559531E-15 -5.396100308526208E-13 -1.703406667940654E-14 -1.943448867969365E-13 -9.538150977353983E-16
q -4.403778511559531E-15 1.069400822565557E-14 1.256120083924336E-12 4.19091508170812E-14 4.521568640652789E-13 2.333340906792929E-15
tp -5.396100308526208E-13 1.256120083924336E-12 2.205795115993689E-9 2.458716937154186E-12 6.426192165608335E-10 3.80388195346181E-14
node -1.703406667940654E-14 4.19091508170812E-14 2.458716937154186E-12 2.23703261336629E-8 -2.235951888613712E-8 4.580648610324199E-11
peri -1.943448867969365E-13 4.521568640652789E-13 6.426192165608335E-10 -2.235951888613712E-8 2.254724511885777E-8 -4.574543757352364E-11
i -9.538150977353983E-16 2.333340906792929E-15 3.80388195346181E-14 4.580648610324199E-11 -4.574543757352364E-11 1.284396410350979E-11

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 MPO337644  
rotation period rot_per 78.294 h n/a LCDB (Rev. 2019-August); 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:
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]

48406 (1981 EQ47)          Discovered 1981-Mar-02 by Bus, S. J. at Siding Spring
Reference: 20021120/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1981 EQ47 = 1992 DX13 = 1996 CL9 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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