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268520 (2005 YR203)
Classification: Main-belt Asteroid          SPK-ID: 2268520
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06176113379582419 4.8037e-08  
a 2.900069479874655 2.6507e-08 au
q 2.72095790071093 1.4544e-07 au
i 4.835110049131802 5.5584e-06 deg
node 296.1515132383123 5.31e-05 deg
peri 272.8965281685788 7.0608e-05 deg
M 285.0307906316078 4.7978e-05 deg
tp 2459576.156978584683
(2021-Dec-27.65697858)
0.00024154 TDB
period 1803.894071043825
4.94
2.4731e-05
6.771e-08
d
yr
n .1995682594553269 2.7361e-09 deg/d
Q 3.07918105903838 2.8144e-08 au
  Orbit Determination Parameters
   # obs. used (total)      229  
   data-arc span      6454 days (17.67 yr)  
   first obs. used      2003-07-05  
   last obs. used      2021-03-06  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .58068  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-14 03:24:08  

Additional Information
 Earth MOID = 1.72007 au 
 Jupiter MOID = 1.924 au 
 T_jup = 3.279 
[ 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 16.70   n/a MPCxxxxx  

268520 (2005 YR203)          Discovered 2005-Dec-25 by Mt. Lemmon Survey at Mount Lemmon
Reference: 20110319/Numbers.arcLast Updated: 2011-03-23

[ hide close-approach data ]
Close-Approach Data   ...sorted by Date/Time (TDB)
Date/Time (TDB) Time Uncertainty
(days_HH:MM)
Body Nominal Distance (au) Minimum Distance (au) Maximum Distance (au) V-relative (km/s) V-infinity (km/s) JD (TDB) Time Uncertainty (minutes) Semi-major axis (km) Semi-minor axis (km) range-LOV angle (deg) N-sigma BP Orbit Ref. Reference Modified
1940-Jul-06 13:02 00:03 Jupiter 1.92812905488284 1.92812853243143 1.92812957733437 2.7965092670046 2.63474265041996 2429817.042730266 3.16227483895596 132.362777570921 16.4199597957188 88.6791663263507 2751558.38729478 T 15 CATAB v2.0f-lin.ifort 2021-Apr-14 03:24:09 2021-Apr-14 03:24
1999-Sep-27 11:42 < 00:01 Jupiter 1.92586654808844 1.92586607228385 1.92586702389292 2.78622748546667 2.62363034384289 2451448.987333701 0.718864610650744 56.6519982879775 13.0767574592562 -81.8268869365766 2767117.3635863 T 15 CATAB v2.0f-lin.ifort 2021-Apr-14 03:24:09 2021-Apr-14 03:24
2058-Dec-18 01:06 00:02 Jupiter 1.92552162027962 1.92552114291188 1.92552209764736 2.78583436035485 2.62318281708892 2473080.545630772 1.79491136722189 88.620898809288 13.7642296318809 -85.8937137006631 2743426.21392183 T 15 CATAB v2.0f-lin.ifort 2021-Apr-14 03:24:09 2021-Apr-14 03:24
2118-Mar-10 09:34 00:04 Jupiter 1.92696853634702 1.92696804735593 1.92696902533865 2.79505849349162 2.63310227692751 2494711.898718853 4.2567420580364 193.871641155739 14.6008604990814 -88.6058182441717 2733472.5151639 T 15 CATAB v2.0f-lin.ifort 2021-Apr-14 03:24:09 2021-Apr-14 03:24
2177-May-30 18:16 00:07 Jupiter 1.92983915262276 1.92983857197017 1.92983973328226 2.81267064605176 2.65203685316268 2516343.261015647 6.71961051187222 315.530055389981 14.5344208070079 -88.4912751141073 2713743.71725286 T 15 CATAB v2.0f-lin.ifort 2021-Apr-14 03:24:09 2021-Apr-14 03:24
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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