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183966 (2004 ER1)
Classification: Main-belt Asteroid          SPK-ID: 2183966
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1348420940688224 3.074e-08  
a 2.359148031923358 9.9589e-09 au
q 2.041035571080471 7.2287e-08 au
i 6.126908949415829 3.9363e-06 deg
node 176.4215837712066 3.7818e-05 deg
peri 117.1432904323549 4.1367e-05 deg
M 115.5431162871648 1.6942e-05 deg
tp 2458775.711459756034
(2019-Oct-19.21145976)
6.1929e-05 TDB
period 1323.522156938877
3.62
8.3807e-06
2.295e-08
d
yr
n .2720014909554895 1.7223e-09 deg/d
Q 2.677260492766245 1.1302e-08 au
  Orbit Determination Parameters
   # obs. used (total)      690  
   data-arc span      7177 days (19.65 yr)  
   first obs. used      2001-06-15  
   last obs. used      2021-02-07  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .55665  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 21:41:09  

Additional Information
 Earth MOID = 1.03205 au 
 Jupiter MOID = 2.50936 au 
 T_jup = 3.532 
[ 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 16.24   n/a MPCxxxxx  

183966 (2004 ER1)          Discovered 2004-Mar-11 by NEAT at Palomar
Reference: 20080420/Numbers.arcLast Updated: 2008-04-23

[ hide close-approach data ]
Close-Approach Data   ...sorted by Date/Time (TDB)
Date/Time (TDB) Time Uncertainty
(days_HH:MM)
Body Nominal Distance (au) Minimum Distance (au) Maximum Distance (au) V-relative (km/s) V-infinity (km/s) JD (TDB) Time Uncertainty (minutes) Semi-major axis (km) Semi-minor axis (km) range-LOV angle (deg) N-sigma BP Orbit Ref. Reference Modified
2025-Jun-30 19:59 < 00:01 Eunom 0.0234343790648606 0.0234302367840004 0.023438521345815 6.5411884326469 6.54118834107046 2460857.332967724 0.396612027858135 206.499170188723 49.8029827283803 -0.756427230084529 16993.759208201 T 19 CATAB v2.0f-lin.ifort 2021-Apr-13 21:41:11 2021-Apr-13 21:41
2098-Apr-01 18:28 < 00:01 Juno 0.0474326361433733 0.0474148213374199 0.0474504550938572 6.67825153311483 6.67825149470822 2487430.269500580 0.344485217612044 1130.90018894092 53.6722074283195 38.3017089191541 82059.0045720067 T 19 CATAB v2.0f-lin.ifort 2021-Apr-13 21:41:11 2021-Apr-13 21:41

Alternate Designations
 2004 ER1 = 2001 LK10 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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