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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 2459000.5 (2020-May-31.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1349290053331469 3.1436e-08  
a 2.358842766391853 1.0175e-08 au
q 2.040566458185312 7.4269e-08 au
i 6.12721430196751 4.1321e-06 deg
node 176.4239560489092 3.7879e-05 deg
peri 117.0848050698789 4.1589e-05 deg
M 61.18551894554111 1.7084e-05 deg
tp 2458775.598131537681
(2019-Oct-19.09813154)
6.2653e-05 TDB
period 1323.26527651908
3.62
8.562e-06
2.344e-08
d
yr
n .2720542935631162 1.7603e-09 deg/d
Q 2.677119074598394 1.1548e-08 au
  Orbit Determination Parameters
   # obs. used (total)      638  
   data-arc span      7071 days (19.36 yr)  
   first obs. used      2001-06-15  
   last obs. used      2020-10-24  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56303  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 08:29:33  

Additional Information
 Earth MOID = 1.03353 au 
 Jupiter MOID = 2.51022 au 
 T_jup = 3.533 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457667.5 (2016-Oct-06.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1348644539922733 3.131e-08  
q 2.041293702832136 7.3985e-08 au
tp 2457453.215830612494
(2016-Mar-05.71583061)
6.2845e-05 TDB
node 176.4642860524001 3.7869e-05 deg
peri 117.4076982446786 4.161e-05 deg
i 6.127552315716505 4.1332e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      638  
   data-arc span      7071 days (19.36 yr)  
   first obs. used      2001-06-15  
   last obs. used      2020-10-24  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56303  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 08:29:33  

Additional Information
 Jupiter MOID = 2.51022 au 
 T_jup = 3.533 
Orbit Covariance (6×6)
  e q tp node peri i
e 9.803378155657654E-16 -2.300008898123579E-15 -4.371495263876473E-13 -2.134391192948555E-16 -1.150531531248963E-13 -1.515921491638685E-15
q -2.300008898123579E-15 5.473726636707061E-15 9.977737632907984E-13 1.843766875889174E-15 2.636447553888572E-13 3.804081179790539E-15
tp -4.371495263876473E-13 9.977737632907984E-13 3.949519168886932E-9 8.129760933063691E-12 1.099618033721578E-9 5.202376480144589E-12
node -2.134391192948555E-16 1.843766875889174E-15 8.129760933063691E-12 1.434051484616165E-9 -1.423217855818675E-9 4.671798560983391E-11
peri -1.150531531248963E-13 2.636447553888572E-13 1.099618033721578E-9 -1.423217855818675E-9 1.731365169746683E-9 -4.500052712529316E-11
i -1.515921491638685E-15 3.804081179790539E-15 5.202376480144589E-12 4.671798560983391E-11 -4.500052712529316E-11 1.708295219310427E-11

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 16.2   n/a MPO494018  

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 16 CATAB v2.0f-lin.ifort 2020-Nov-12 08:29:34 2020-Nov-12 08:29
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 16 CATAB v2.0f-lin.ifort 2020-Nov-12 08:29:34 2020-Nov-12 08:29

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