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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 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 31 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1092705620013312 4.4273e-08  
a 2.51888888704845 8.9867e-09 au
q 2.243648482741758 1.1225e-07 au
i 11.06920963243545 4.697e-06 deg
node 323.0414157757456 1.5142e-05 deg
peri 200.1176385932532 2.0911e-05 deg
M 337.5981178677551 1.3477e-05 deg
tp 2459291.364438985613
(2021-Mar-17.86443899)
5.4747e-05 TDB
period 1460.198649457974
4.00
7.8144e-06
2.139e-08
d
yr
n .2465417976750164 1.3194e-09 deg/d
Q 2.794129291355142 9.9687e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1370  
   data-arc span      8780 days (24.04 yr)  
   first obs. used      1997-03-10  
   last obs. used      2021-03-24  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .47835  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-04 08:31:46  

Additional Information
 Earth MOID = 1.25555 au 
 Jupiter MOID = 2.21332 au 
 T_jup = 3.423 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457468.5 (2016-Mar-21.0) TDB
Reference: JPL 31 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1090206127512138 4.4377e-08  
q 2.243719979828334 1.1243e-07 au
tp 2457833.767663999453
(2017-Mar-21.26766400)
5.4082e-05 TDB
node 323.1065958391465 1.5136e-05 deg
peri 200.6297192788358 2.0928e-05 deg
i 11.07181153211851 4.6985e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1370  
   data-arc span      8780 days (24.04 yr)  
   first obs. used      1997-03-10  
   last obs. used      2021-03-24  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .47835  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-04 08:31:46  

Additional Information
 Jupiter MOID = 2.21332 au 
 T_jup = 3.423 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.969311871586242E-15 -4.976703409421292E-15 -3.443763905445269E-13 9.991623830464448E-15 -8.372037794094392E-14 2.794206178284837E-15
q -4.976703409421292E-15 1.26404821473777E-14 8.754486365423942E-13 -2.50703469071412E-14 2.080292571456828E-13 -6.8145109393184E-15
tp -3.443763905445269E-13 8.754486365423942E-13 2.92481922089746E-9 -8.49364470172346E-12 7.868268728340923E-10 1.270079059886688E-12
node 9.991623830464448E-15 -2.50703469071412E-14 -8.49364470172346E-12 2.290834739068852E-10 -2.265961062699829E-10 1.46882290682412E-11
peri -8.372037794094392E-14 2.080292571456828E-13 7.868268728340923E-10 -2.265961062699829E-10 4.379674518363492E-10 -1.407735430467382E-11
i 2.794206178284837E-15 -6.8145109393184E-15 1.270079059886688E-12 1.46882290682412E-11 -1.407735430467382E-11 2.207554755736445E-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 15.04   n/a MPCxxxxx  
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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