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344821 (2004 ER6)
Classification: Main-belt Asteroid          SPK-ID: 2344821
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 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06311718857451544 5.339e-08  
a 2.332526473104934 1.6812e-08 au
q 2.18530395984692 1.251e-07 au
i 6.510844161737341 6.0305e-06 deg
node 351.6132116320939 5.0461e-05 deg
peri 183.0960258637915 6.9824e-05 deg
M 197.2438670683274 4.9212e-05 deg
tp 2459588.765204413536
(2022-Jan-09.26520441)
0.00018013 TDB
period 1301.18275590745
3.56
1.4068e-05
3.852e-08
d
yr
n .2766713579361375 2.9912e-09 deg/d
Q 2.479748986362947 1.7873e-08 au
  Orbit Determination Parameters
   # obs. used (total)      168  
   data-arc span      5581 days (15.28 yr)  
   first obs. used      2004-02-26  
   last obs. used      2019-06-08  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .61969  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-24 06:31:13  

Additional Information
 Earth MOID = 1.18983 au 
 Jupiter MOID = 2.48482 au 
 T_jup = 3.559 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457143.5 (2015-May-01.0) TDB
Reference: JPL 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06227313783327822 5.3474e-08  
q 2.187560823610947 1.2521e-07 au
tp 2456984.750021998900
(2014-Nov-23.25002200)
0.00017402 TDB
node 351.6869544745895 5.0447e-05 deg
peri 182.8179100246295 7.023e-05 deg
i 6.511567998714978 6.0311e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      168  
   data-arc span      5581 days (15.28 yr)  
   first obs. used      2004-02-26  
   last obs. used      2019-06-08  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .61969  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-24 06:31:13  

Additional Information
 Jupiter MOID = 2.48482 au 
 T_jup = 3.559 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.859449849750529E-15 -6.642216909819434E-15 2.521585240681263E-13 -2.665262725815944E-16 4.257877117436741E-14 -3.470830728929557E-15
q -6.642216909819434E-15 1.567840254750246E-14 2.52574177015294E-14 2.084769964358267E-15 7.716419742461682E-14 7.984843037960875E-15
tp 2.521585240681263E-13 2.52574177015294E-14 3.028192172191282E-8 9.313097688067191E-11 8.53289236610553E-9 -4.511769421380762E-12
node -2.665262725815944E-16 2.084769964358267E-15 9.313097688067191E-11 2.544857752618958E-9 -2.500857136326541E-9 2.237777247612707E-11
peri 4.257877117436741E-14 7.716419742461682E-14 8.53289236610553E-9 -2.500857136326541E-9 4.932305282528882E-9 -2.339068431035693E-11
i -3.470830728929557E-15 7.984843037960875E-15 -4.511769421380762E-12 2.237777247612707E-11 -2.339068431035693E-11 3.637408718848938E-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 17.2   n/a MPO437461  

344821 (2004 ER6)          Discovered 2004-Mar-12 by NEAT at Palomar
Reference: 20121128/Numbers.arcLast Updated: 2012-12-03

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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