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70018 (1998 YP9)
Classification: Main-belt Asteroid          SPK-ID: 2070018
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.


Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 27 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1205493116657324 3.6671e-08  
a 3.156972180544216 1.9797e-08 au
q 2.776401357231745 1.2021e-07 au
i 4.762142318439873 4.9986e-06 deg
node 170.689190156186 4.2188e-05 deg
peri 242.7806732735174 4.7637e-05 deg
M 342.9473203058679 1.966e-05 deg
tp 2459297.549810799829
(2021-Mar-24.04981080)
0.00011169 TDB
period 2048.823558209507
5.61
1.9272e-05
5.276e-08
d
yr
n .1757105918455021 1.6528e-09 deg/d
Q 3.537543003856687 2.2183e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1105  
   data-arc span      8102 days (22.18 yr)  
   first obs. used      1998-12-08  
   last obs. used      2021-02-12  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .51406  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 12:46:29  

Additional Information
 Earth MOID = 1.79075 au 
 Jupiter MOID = 1.83522 au 
 T_jup = 3.189 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457315.5 (2015-Oct-20.0) TDB
Reference: JPL 27 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1197292597366655 3.714e-08  
q 2.780476406113744 1.2089e-07 au
tp 2457222.735698538990
(2015-Jul-19.23569854)
0.00011814 TDB
node 171.1024515881566 4.1928e-05 deg
peri 238.8190491641828 4.7567e-05 deg
i 4.773121983858997 5.0192e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1105  
   data-arc span      8102 days (22.18 yr)  
   first obs. used      1998-12-08  
   last obs. used      2021-02-12  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .51406  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 12:46:29  

Additional Information
 Jupiter MOID = 1.83522 au 
 T_jup = 3.189 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.379347575000345E-15 -4.447569652050723E-15 -1.22522810194286E-12 3.270076281920612E-15 -2.027317871060465E-13 -1.480770004848123E-15
q -4.447569652050723E-15 1.461359112136943E-14 3.334250915907699E-12 -9.458790130310854E-15 5.372992654392125E-13 6.035013018412767E-15
tp -1.22522810194286E-12 3.334250915907699E-12 1.395776489380588E-8 -1.830083348467874E-11 2.665398094356358E-9 1.506244783106965E-12
node 3.270076281920612E-15 -9.458790130310854E-15 -1.830083348467874E-11 1.757975055700961E-9 -1.75472934490108E-9 3.370112482561338E-11
peri -2.027317871060465E-13 5.372992654392125E-13 2.665398094356358E-9 -1.75472934490108E-9 2.262614859154203E-9 -3.337779479232462E-11
i -1.480770004848123E-15 6.035013018412767E-15 1.506244783106965E-12 3.370112482561338E-11 -3.337779479232462E-11 2.519284407249574E-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 14.38   n/a E2021B10  
diameter diameter 7.551 km 0.101 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.078   0.008 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

70018 (1998 YP9)          Discovered 1998-Dec-25 by Korlevic, K., Juric, M. at Visnjan
Reference: 20031109/Numbers.arcLast Updated: 2004-04-19

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Alternate Designations
 1998 YP9 = 2000 DM13 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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