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344914 (2004 RR261)
Classification: Main-belt Asteroid          SPK-ID: 2344914
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1022293473074093 9.5141e-08  
a 2.38405752116555 2.1239e-08 au
q 2.140336876833476 2.2637e-07 au
i 2.50070338214383 1.0207e-05 deg
node 180.4184343661877 0.00013662 deg
peri 9.781025819668779 0.00013931 deg
M 255.1296847687327 3.1494e-05 deg
tp 2459392.172963472899
(2021-Jun-26.67296347)
0.00012055 TDB
period 1344.539363110483
3.68
1.7967e-05
4.919e-08
d
yr
n .2677496917361862 3.578e-09 deg/d
Q 2.627778165497624 2.3411e-08 au
  Orbit Determination Parameters
   # obs. used (total)      128  
   data-arc span      10052 days (27.52 yr)  
   first obs. used      1992-04-25  
   last obs. used      2019-11-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .59527  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-04 22:57:44  

Additional Information
 Earth MOID = 1.14053 au 
 Jupiter MOID = 2.32765 au 
 T_jup = 3.528 
[ 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 17.6   n/a MPO503388  

344914 (2004 RR261)          Discovered 2004-Sep-10 by Spacewatch at Kitt Peak
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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