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135556 (2002 EM74)
Classification: Main-belt Asteroid          SPK-ID: 2135556
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 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .189939621044844 4.4665e-08  
a 2.401893200840453 1.2021e-08 au
q 1.94567851648263 1.0909e-07 au
i 8.67877061594166 6.7404e-06 deg
node 196.605440953435 2.6271e-05 deg
peri 59.95620068959645 3.1181e-05 deg
M 324.6123925431962 1.76e-05 deg
tp 2459334.152678389090
(2021-Apr-29.65267839)
6.6924e-05 TDB
period 1359.65575742311
3.72
1.0207e-05
2.795e-08
d
yr
n .2647729015484703 1.9876e-09 deg/d
Q 2.858107885198277 1.4304e-08 au
  Orbit Determination Parameters
   # obs. used (total)      527  
   data-arc span      7454 days (20.41 yr)  
   first obs. used      1999-09-05  
   last obs. used      2020-02-01  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .59375  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 18:13:34  

Additional Information
 Earth MOID = .946966 au 
 Jupiter MOID = 2.21815 au 
 T_jup = 3.485 
[ 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 16.23   n/a E2021B55  
diameter diameter 2.711 km 0.102 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.096   0.018 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

135556 (2002 EM74)          Discovered 2002-Mar-13 by LINEAR at Socorro
Reference: 20060907/Numbers.arcLast Updated: 2006-09-10

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