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2598 Merlin (1980 RY)
Classification: Main-belt Asteroid          SPK-ID: 2002598
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 31 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2175838910847819 3.7759e-08  
a 2.779999667683403 1.1823e-08 au
q 2.175116522774447 1.0334e-07 au
i 7.777355484926072 4.2864e-06 deg
node 197.7594850309038 2.5988e-05 deg
peri 217.0968119719757 2.7184e-05 deg
M 150.1294157606727 9.5656e-06 deg
tp 2458294.460763521721
(2018-Jun-24.96076352)
4.2923e-05 TDB
period 1693.033466122119
4.64
1.08e-05
2.957e-08
d
yr
n .2126360802687365 1.3564e-09 deg/d
Q 3.384882812592358 1.4395e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2554  
   data-arc span      26136 days (71.56 yr)  
   first obs. used      1948-11-25  
   last obs. used      2020-06-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .436  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jun-23 15:47:27  

Additional Information
 Earth MOID = 1.19187 au 
 Jupiter MOID = 2.01804 au 
 T_jup = 3.285 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456939.5 (2014-Oct-09.0) TDB
Reference: JPL 31 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2172526234466151 3.7784e-08  
q 2.177903584716659 1.036e-07 au
tp 2456602.744492439684
(2013-Nov-06.24449244)
3.9854e-05 TDB
node 197.7864582801391 2.6008e-05 deg
peri 217.5688842420486 2.7209e-05 deg
i 7.771776401972943 4.2839e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      2554  
   data-arc span      26136 days (71.56 yr)  
   first obs. used      1948-11-25  
   last obs. used      2020-06-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .436  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jun-23 15:47:27  

Additional Information
 Jupiter MOID = 2.01804 au 
 T_jup = 3.285 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.427623077521872E-15 -3.899490005352793E-15 3.853018927281254E-14 -3.789744668581069E-16 -2.044335368854963E-14 -3.134778722047157E-16
q -3.899490005352793E-15 1.07331952996664E-14 -5.199338166077859E-14 -4.471760172136139E-16 6.941770183830035E-14 1.006459601523563E-15
tp 3.853018927281254E-14 -5.199338166077859E-14 1.588359777985391E-9 -7.058247303864418E-13 3.300130190310557E-10 -1.748402506339389E-12
node -3.789744668581069E-16 -4.471760172136139E-16 -7.058247303864418E-13 6.764398209292945E-10 -6.701541696618421E-10 1.608546644163996E-11
peri -2.044335368854963E-14 6.941770183830035E-14 3.300130190310557E-10 -6.701541696618421E-10 7.403170826041705E-10 -1.621690156554182E-11
i -3.134778722047157E-16 1.006459601523563E-15 -1.748402506339389E-12 1.608546644163996E-11 -1.621690156554182E-11 1.835164271344474E-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 13.2   n/a MPO384773  
diameter diameter 15.694 km 0.047 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.049   0.010 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
SMASSII spectral type spec_B Ch   n/a EAR-A-5-DDR-TAXONOMY-V4.0 based on a high-resolution spectrum by Xu et al. (1995) or Bus and Binzel (2002)

2598 Merlin (1980 RY)          Discovered 1980-Sep-07 by Bowell, E. at Flagstaff (AM)
Discovered at the Anderson Mesa station, which is operated by the Lowell Observatory.
Reference: DISCOVERY.DBLast Updated: 2003-08-29

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Alternate Designations
 1980 RY = 1948 WH = 1971 TD3 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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