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100550 (1997 EM41)
Classification: Main-belt Asteroid          SPK-ID: 2100550
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ 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 .1093177449487405 4.4591e-08  
a 2.518708317310403 1.1623e-08 au
q 2.243368803878393 1.1312e-07 au
i 11.06884887130148 4.7713e-06 deg
node 323.043175336898 1.7531e-05 deg
peri 200.1812211838175 2.3669e-05 deg
M 288.2340700864177 1.6412e-05 deg
tp 2459291.559016285718
(2021-Mar-18.05901629)
6.7508e-05 TDB
period 1460.041637989391
4.00
1.0107e-05
2.767e-08
d
yr
n .2465683105419873 1.7068e-09 deg/d
Q 2.794047830742413 1.2894e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1073  
   data-arc span      8357 days (22.88 yr)  
   first obs. used      1997-03-10  
   last obs. used      2020-01-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .50784  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-24 01:07:42  

Additional Information
 Earth MOID = 1.25551 au 
 Jupiter MOID = 2.21421 au 
 T_jup = 3.423 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457033.5 (2015-Jan-11.0) TDB
Reference: JPL 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1088328744210472 4.4716e-08  
q 2.244829441197563 1.1337e-07 au
tp 2456373.106381257438
(2013-Mar-21.60638126)
6.0759e-05 TDB
node 323.1104874877225 1.7518e-05 deg
peri 200.4857910880782 2.3693e-05 deg
i 11.07212987345872 4.773e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1073  
   data-arc span      8357 days (22.88 yr)  
   first obs. used      1997-03-10  
   last obs. used      2020-01-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .50784  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-24 01:07:42  

Additional Information
 Jupiter MOID = 2.21421 au 
 T_jup = 3.423 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.999554657652516E-15 -5.048205874668039E-15 -3.050010230476473E-13 1.906188611175462E-14 -8.718078955227904E-14 4.049934290615625E-15
q -5.048205874668039E-15 1.285254898702145E-14 8.906741870552677E-13 -4.824655315738523E-14 2.613471637480466E-13 -9.540207108572427E-15
tp -3.050010230476473E-13 8.906741870552677E-13 3.691632514197567E-9 -1.579716933294764E-11 9.770779347050962E-10 2.390394417695961E-12
node 1.906188611175462E-14 -4.824655315738523E-14 -1.579716933294764E-11 3.068797929717719E-10 -3.046600185145309E-10 1.735549760332138E-11
peri -8.718078955227904E-14 2.613471637480466E-13 9.770779347050962E-10 -3.046600185145309E-10 5.613576396181482E-10 -1.636107969155516E-11
i 4.049934290615625E-15 -9.540207108572427E-15 2.390394417695961E-12 1.735549760332138E-11 -1.636107969155516E-11 2.278134930608164E-11

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.0   n/a MPO348128  
diameter diameter 4.299 km 0.399 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.126   0.019 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

100550 (1997 EM41)          Discovered 1997-Mar-10 by LINEAR at Socorro
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

Alternate Designations
 1997 EM41 = 2000 YZ34 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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