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120867 (1998 RM2)
Classification: Main-belt Asteroid          SPK-ID: 2120867
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1792087599656947 4.2731e-08  
a 2.171153731304476 7.7326e-09 au
q 1.782063963422509 9.4828e-08 au
i 4.198197259107802 3.5262e-06 deg
node 61.69290782459561 6.1058e-05 deg
peri 317.2219075358386 6.1923e-05 deg
M 330.5814252763103 1.0681e-05 deg
tp 2459295.989015819521
(2021-Mar-22.48901582)
3.4931e-05 TDB
period 1168.514994961526
3.20
6.2425e-06
1.709e-08
d
yr
n .3080833378709473 1.6459e-09 deg/d
Q 2.560243499186441 9.1183e-09 au
  Orbit Determination Parameters
   # obs. used (total)      717  
   data-arc span      7506 days (20.55 yr)  
   first obs. used      1998-09-14  
   last obs. used      2019-04-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57885  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 17:54:09  

Additional Information
 Earth MOID = .785923 au 
 Jupiter MOID = 2.90131 au 
 T_jup = 3.664 
[ 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 16.4   n/a MPO310009  
diameter diameter 3.126 km 0.177 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.060   0.010 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

120867 (1998 RM2)          Discovered 1998-Sep-15 by ODAS at Caussols
Reference: 20060314/Numbers.arcLast Updated: 2006-03-23

[ show close-approach data ]
Alternate Designations
 1998 RM2 = 2001 OH30 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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