Skip Page Navigation
NASA JPL Caltech
NASA Logo - Jet Propulsion Laboratory + View the NASA Portal
+ Center for Near-Earth Object Studies
JPL Home Earth Solar System Stars & Galaxies Technology
JPL Solar System Dynamics
BODIES ORBITS EPHEMERIDES TOOLS PHYSICAL DATA DISCOVERY FAQ SITE MAP
JPL Small-Body Database Browser
Search: [ help ]  
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 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06311716500445487 4.8382e-08  
a 2.33252647922619 1.5573e-08 au
q 2.185304020559611 1.1604e-07 au
i 6.510850229213707 5.4354e-06 deg
node 351.6132121393027 4.863e-05 deg
peri 183.0960274130731 6.7638e-05 deg
M 197.2438689172953 4.8522e-05 deg
tp 2459588.765200046313
(2022-Jan-09.26520005)
0.00017804 TDB
period 1301.182761029498
3.56
1.3031e-05
3.568e-08
d
yr
n .2766713568470331 2.7708e-09 deg/d
Q 2.47974893789277 1.6556e-08 au
  Orbit Determination Parameters
   # obs. used (total)      211  
   data-arc span      6103 days (16.71 yr)  
   first obs. used      2004-02-26  
   last obs. used      2020-11-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .60475  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Dec-18 06:21:58  

Additional Information
 Earth MOID = 1.18983 au 
 Jupiter MOID = 2.48482 au 
 T_jup = 3.559 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457485.5 (2016-Apr-07.0) TDB
Reference: JPL 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06221544096837976 4.8495e-08  
q 2.188095354379887 1.1623e-07 au
tp 2456985.314979854647
(2014-Nov-23.81497985)
0.00016991 TDB
node 351.6854126152624 4.861e-05 deg
peri 183.0049068312731 6.8058e-05 deg
i 6.511578781368494 5.4368e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      211  
   data-arc span      6103 days (16.71 yr)  
   first obs. used      2004-02-26  
   last obs. used      2020-11-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .60475  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Dec-18 06:21:58  

Additional Information
 Jupiter MOID = 2.48482 au 
 T_jup = 3.559 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.351803690054096E-15 -5.592870747620867E-15 1.10437625899639E-12 -2.49486377919385E-15 3.205421948884227E-13 -1.264727888146811E-15
q -5.592870747620867E-15 1.350930810535516E-14 -1.737982620120392E-12 7.648480542952501E-15 -4.988517393463956E-13 3.224420166959365E-15
tp 1.10437625899639E-12 -1.737982620120392E-12 2.886901263520284E-8 4.413879639546227E-11 8.12199634392881E-9 2.638060006569863E-12
node -2.49486377919385E-15 7.648480542952501E-15 4.413879639546227E-11 2.362921387643631E-9 -2.334402996839372E-9 5.676652501702982E-11
peri 3.205421948884227E-13 -4.988517393463956E-13 8.12199634392881E-9 -2.334402996839372E-9 4.631838534343234E-9 -5.556232322069697E-11
i -1.264727888146811E-15 3.224420166959365E-15 2.638060006569863E-12 5.676652501702982E-11 -5.556232322069697E-11 2.955845863947375E-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 ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2021-Jan-25 15:16 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin