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123948 (2001 EQ25)
Classification: Main-belt Asteroid          SPK-ID: 2123948
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 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07122639559830571 5.5737e-08  
a 2.97271208743895 2.6523e-08 au
q 2.760976520299158 1.7079e-07 au
i 9.411741896768051 5.3525e-06 deg
node 306.3113066656304 2.7387e-05 deg
peri 206.306968324155 4.0935e-05 deg
M 288.9093393886716 3.1201e-05 deg
tp 2459370.190039487453
(2021-Jun-04.69003949)
0.00016406 TDB
period 1872.094211405812
5.13
2.5055e-05
6.86e-08
d
yr
n .1922980146013406 2.5736e-09 deg/d
Q 3.184447654578741 2.8412e-08 au
  Orbit Determination Parameters
   # obs. used (total)      549  
   data-arc span      7179 days (19.66 yr)  
   first obs. used      2001-03-03  
   last obs. used      2020-10-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54264  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 17:31:19  

Additional Information
 Earth MOID = 1.77583 au 
 Jupiter MOID = 1.85985 au 
 T_jup = 3.238 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457221.5 (2015-Jul-18.0) TDB
Reference: JPL 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .0708382266774487 5.6186e-08  
q 2.760870144309085 1.7194e-07 au
tp 2457508.091068285082
(2016-Apr-29.59106829)
0.00015646 TDB
node 306.4340500285643 2.7342e-05 deg
peri 208.1115077431692 4.0851e-05 deg
i 9.420790424151591 5.3578e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      549  
   data-arc span      7179 days (19.66 yr)  
   first obs. used      2001-03-03  
   last obs. used      2020-10-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54264  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 17:31:19  

Additional Information
 Jupiter MOID = 1.85985 au 
 T_jup = 3.238 
Orbit Covariance (6×6)
  e q tp node peri i
e 3.156824666113994E-15 -9.562882048654924E-15 -2.013042532121813E-13 1.417255954124917E-14 4.567287164836229E-14 2.670814893405509E-15
q -9.562882048654924E-15 2.956303807695764E-14 1.490740463110903E-12 -4.326312555679824E-14 1.241802745591064E-14 -6.944141289623233E-15
tp -2.013042532121813E-13 1.490740463110903E-12 2.447864721571481E-8 1.581896119636555E-12 4.765079575101454E-9 9.091895564458248E-12
node 1.417255954124917E-14 -4.326312555679824E-14 1.581896119636555E-12 7.475607895557453E-10 -7.362687192874895E-10 3.301279166386575E-11
peri 4.567287164836229E-14 1.241802745591064E-14 4.765079575101454E-9 -7.362687192874895E-10 1.668796942494878E-9 -3.076635135747663E-11
i 2.670814893405509E-15 -6.944141289623233E-15 9.091895564458248E-12 3.301279166386575E-11 -3.076635135747663E-11 2.870564364958001E-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 15.0   n/a MPO412823  
diameter diameter 3.484 km 0.710 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.145   0.051 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

123948 (2001 EQ25)          Discovered 2001-Mar-15 by NEAT at Haleakala
Reference: 20060314/Numbers.arcLast Updated: 2006-03-23

[ show close-approach data ]
Alternate Designations
 2001 EQ25 = 2001 FW194 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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