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243388 (2008 YK54)
Classification: Main-belt Asteroid          SPK-ID: 2243388
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ 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 .1156431282533931 5.1892e-08  
a 2.583224502120409 3.607e-08 au
q 2.284492339714391 1.4553e-07 au
i 7.007159762698898 6.5236e-06 deg
node 90.55679542783321 4.8236e-05 deg
peri 315.2891301552983 5.9835e-05 deg
M 333.0925668940819 3.9963e-05 deg
tp 2459113.847363408995
(2020-Sep-21.34736341)
0.00016933 TDB
period 1516.497343563534
4.15
3.1763e-05
8.696e-08
d
yr
n .2373891398675687 4.9721e-09 deg/d
Q 2.881956664526427 4.0242e-08 au
  Orbit Determination Parameters
   # obs. used (total)      225  
   data-arc span      6769 days (18.53 yr)  
   first obs. used      1999-10-09  
   last obs. used      2018-04-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55959  
   source      ORB  
   producer      Otto Matic  
   solution date      2018-May-07 06:25:51  

Additional Information
 Earth MOID = 1.30074 au 
 Jupiter MOID = 2.46845 au 
 T_jup = 3.404 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456714.5 (2014-Feb-26.0) TDB
Reference: JPL 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1172542531774888 5.2093e-08  
q 2.280141571393151 1.4613e-07 au
tp 2456075.097520902543
(2012-May-27.59752090)
0.00014984 TDB
node 90.61675922098375 4.8332e-05 deg
peri 314.2096359401237 5.9499e-05 deg
i 7.002180718043261 6.5147e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      225  
   data-arc span      6769 days (18.53 yr)  
   first obs. used      1999-10-09  
   last obs. used      2018-04-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55959  
   source      ORB  
   producer      Otto Matic  
   solution date      2018-May-07 06:25:51  

Additional Information
 Jupiter MOID = 2.46845 au 
 T_jup = 3.404 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.713721044990533E-15 -7.441162402803257E-15 -8.949428830305823E-13 2.840398445681839E-14 -1.779646598626415E-13 3.408309677894959E-15
q -7.441162402803257E-15 2.135513649701543E-14 2.618665519213753E-12 -8.227778385533968E-14 6.160434554745101E-13 -7.433149957398831E-15
tp -8.949428830305823E-13 2.618665519213753E-12 2.24530632740175E-8 -1.385056918451522E-10 5.219276691913175E-9 1.273319148705734E-11
node 2.840398445681839E-14 -8.227778385533968E-14 -1.385056918451522E-10 2.33593801106144E-9 -2.349322520400706E-9 7.265286071498411E-11
peri -1.779646598626415E-13 6.160434554745101E-13 5.219276691913175E-9 -2.349322520400706E-9 3.540096875373972E-9 -6.902752430216318E-11
i 3.408309677894959E-15 -7.433149957398831E-15 1.273319148705734E-11 7.265286071498411E-11 -6.902752430216318E-11 4.244068103548775E-11

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 16.2   n/a MPO450092  

243388 (2008 YK54)          Discovered 2008-Dec-29 by Mt. Lemmon Survey at Mount Lemmon
Reference: 20100626/Numbers.arcLast Updated: 2010-06-28
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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