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100541 (1997 EG25)
Classification: Main-belt Asteroid          SPK-ID: 2100541
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 26 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1470458564400821 4.5119e-08  
a 2.38278553731572 1.0422e-08 au
q 2.032406797268089 1.068e-07 au
i 7.257406085728441 5.2655e-06 deg
node 47.43411056142449 3.2667e-05 deg
peri 294.0181274269844 3.6326e-05 deg
M 294.7841687687329 1.7349e-05 deg
tp 2459243.875240298244
(2021-Jan-29.37524030)
6.533e-05 TDB
period 1343.463463597802
3.68
8.8141e-06
2.413e-08
d
yr
n .2679641164456517 1.758e-09 deg/d
Q 2.733164277363351 1.1954e-08 au
  Orbit Determination Parameters
   # obs. used (total)      605  
   data-arc span      8614 days (23.58 yr)  
   first obs. used      1995-09-02  
   last obs. used      2019-04-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58057  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-24 01:07:25  

Additional Information
 Earth MOID = 1.03774 au 
 Jupiter MOID = 2.67874 au 
 T_jup = 3.512 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456799.5 (2014-May-22.0) TDB
Reference: JPL 26 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .145950098523129 4.4842e-08  
q 2.034606838837284 1.0579e-07 au
tp 2456555.832815934490
(2013-Sep-20.33281593)
6.1442e-05 TDB
node 47.56087030579266 3.2672e-05 deg
peri 293.5697927397582 3.6412e-05 deg
i 7.256936280701125 5.2627e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      605  
   data-arc span      8614 days (23.58 yr)  
   first obs. used      1995-09-02  
   last obs. used      2019-04-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58057  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-24 01:07:25  

Additional Information
 Jupiter MOID = 2.67874 au 
 T_jup = 3.512 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.01083877905678E-15 -4.726929599950144E-15 1.182383240619712E-12 -2.771775259870456E-15 2.818407494564835E-13 -5.020768246767753E-16
q -4.726929599950144E-15 1.119163966930248E-14 -2.74302571881369E-12 6.441517306525478E-15 -6.49427773274659E-13 1.408970080538188E-15
tp 1.182383240619712E-12 -2.74302571881369E-12 3.775144079378373E-9 7.002856127799556E-13 1.002420592683646E-9 -2.177517633284961E-12
node -2.771775259870456E-15 6.441517306525478E-15 7.002856127799556E-13 1.067439286488434E-9 -1.057895479183472E-9 -5.118464038702782E-11
peri 2.818407494564835E-13 -6.49427773274659E-13 1.002420592683646E-9 -1.057895479183472E-9 1.325846536885574E-9 5.010765993086682E-11
i -5.020768246767753E-16 1.408970080538188E-15 -2.177517633284961E-12 -5.118464038702782E-11 5.010765993086682E-11 2.769614141083689E-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 15.9   n/a MPO432533  

100541 (1997 EG25)          Discovered 1997-Mar-07 by Spacewatch at Kitt Peak
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

Alternate Designations
 1997 EG25 = 2002 PC98 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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