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180555 (2004 ER25)
Classification: Main-belt Asteroid          SPK-ID: 2180555
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 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1470519781388244 4.1198e-08  
a 2.431158369727188 1.2851e-08 au
q 2.073651722290045 1.005e-07 au
i 6.784988998531245 4.8517e-06 deg
node 195.6928159355048 3.821e-05 deg
peri 112.8548600483263 4.1953e-05 deg
M 22.21828457860576 2.0504e-05 deg
tp 2459115.047194265336
(2020-Sep-22.54719427)
7.8468e-05 TDB
period 1384.580792258866
3.79
1.0978e-05
3.006e-08
d
yr
n .2600064958381231 2.0615e-09 deg/d
Q 2.78866501716433 1.474e-08 au
  Orbit Determination Parameters
   # obs. used (total)      664  
   data-arc span      8598 days (23.54 yr)  
   first obs. used      1997-05-03  
   last obs. used      2020-11-16  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .52132  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 21:26:59  

Additional Information
 Earth MOID = 1.06886 au 
 Jupiter MOID = 2.47999 au 
 T_jup = 3.483 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456734.5 (2014-Mar-18.0) TDB
Reference: JPL 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .146756876904196 4.1222e-08  
q 2.074058750806878 1.0044e-07 au
tp 2456343.598082650621
(2013-Feb-20.09808265)
6.8489e-05 TDB
node 195.8791739213944 3.8295e-05 deg
peri 112.2494488644568 4.2006e-05 deg
i 6.776487352324235 4.8468e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      664  
   data-arc span      8598 days (23.54 yr)  
   first obs. used      1997-05-03  
   last obs. used      2020-11-16  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .52132  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 21:26:59  

Additional Information
 Jupiter MOID = 2.47999 au 
 T_jup = 3.483 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.699220691870793E-15 -4.115972649269774E-15 4.764099325442934E-14 6.085817550313947E-15 3.444220659347311E-14 6.271354852453983E-16
q -4.115972649269774E-15 1.008734577787643E-14 1.423056685962235E-13 -1.341456918825495E-14 -1.454505048867446E-14 -1.019631378828193E-15
tp 4.764099325442934E-14 1.423056685962235E-13 4.690744395715238E-9 6.158105410323272E-12 1.201069453590164E-9 3.19189629036423E-12
node 6.085817550313947E-15 -1.341456918825495E-14 6.158105410323272E-12 1.466539357310944E-9 -1.454090468024912E-9 -8.417585754595965E-12
peri 3.444220659347311E-14 -1.454505048867446E-14 1.201069453590164E-9 -1.454090468024912E-9 1.764532001496642E-9 9.207104738452312E-12
i 6.271354852453983E-16 -1.019631378828193E-15 3.19189629036423E-12 -8.417585754595965E-12 9.207104738452312E-12 2.349100261516905E-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 15.84   n/a E2021B55  

180555 (2004 ER25)          Discovered 2004-Mar-13 by NEAT at Palomar
Reference: 20080321/Numbers.arcLast Updated: 2008-03-26

Alternate Designations
 2004 ER25 = 2001 LP10 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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