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442500 (2011 WG2)
Classification: Outer Main-belt Asteroid          SPK-ID: 2442500
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ 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 .07912865837493074 7.3886e-08  
a 3.543538752900111 9.5073e-08 au
q 3.26314328548355 2.7824e-07 au
i 19.13575830764558 9.1917e-06 deg
node 74.51992939129445 2.5403e-05 deg
peri 307.863337732664 6.3408e-05 deg
M 142.3015676772313 5.9769e-05 deg
tp 2458037.422158674425
(2017-Oct-10.92215867)
0.00039378 TDB
period 2436.431506247427
6.67
9.8054e-05
2.685e-07
d
yr
n .1477570779547459 5.9464e-09 deg/d
Q 3.823934220316672 1.026e-07 au
  Orbit Determination Parameters
   # obs. used (total)      86  
   data-arc span      4396 days (12.04 yr)  
   first obs. used      2008-04-06  
   last obs. used      2020-04-19  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .61459  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-22 03:53:58  

Additional Information
 Earth MOID = 2.30734 au 
 Jupiter MOID = 1.61539 au 
 T_jup = 3.023 
[ 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 15.4   n/a MPO437721  

442500 (2011 WG2)          Discovered 2008-Apr-06 by Mt. Lemmon Survey at Mount Lemmon
Reference: Last Updated: 2015-09-02

[ 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
1918-Dec-23 00:22 00:12 Jupiter 1.80544612353629 1.80544137331076 1.80545087422036 5.35073764124017 5.26232801252376 2421950.515300379 12.0427031319822 1488.22630459096 38.5065327293228 -80.5809542405013 1901938.86196844 T 13 CATAB v2.0f-lin.ifort 2020-May-22 03:53:59 2020-May-22 03:54
1934-Sep-27 12:03 00:12 Jupiter 1.87981372249531 1.87980715619617 1.8798202888014 4.0697245045062 3.95745883968139 2427708.001849204 12.1492633778719 404.964012383547 273.168181741162 38.5011745469558 1170885.3831461 T 13 CATAB v2.0f-lin.ifort 2020-May-22 03:53:59 2020-May-22 03:54
1949-Jul-16 13:57 00:10 Jupiter 1.86189306931773 1.86188740594707 1.8618987328555 4.32009828174421 4.21347817040799 2433114.081484410 10.243287252673 944.65326346892 39.0643887393041 71.5596774193848 1624211.29230701 T 13 CATAB v2.0f-lin.ifort 2020-May-22 03:53:59 2020-May-22 03:54
1964-Dec-31 23:00 00:06 Jupiter 1.76113911342168 1.7611372728426 1.7611409540276 5.65919053889033 5.573556722201 2438761.458560691 6.32404740118381 480.310479977835 63.1091106408524 81.7438195266931 2147187.49528822 T 13 CATAB v2.0f-lin.ifort 2020-May-22 03:53:59 2020-May-22 03:54
1995-Jun-16 06:33 00:03 Jupiter 1.58068151423379 1.58068060644848 1.58068242202898 4.83622124017762 4.72412084488444 2449884.772729489 2.53975987280201 398.356049323424 36.673721891249 86.6194978915451 1850937.19647836 T 13 CATAB v2.0f-lin.ifort 2020-May-22 03:53:59 2020-May-22 03:54
2025-Aug-22 04:24 00:01 Jupiter 1.8100131043681 1.81001206330988 1.81001414542901 5.39206498388282 5.30456737962417 2460909.683449720 1.27406757148873 197.927147259615 39.5695982736313 -80.4911456822603 1938915.32035211 T 13 CATAB v2.0f-lin.ifort 2020-May-22 03:53:59 2020-May-22 03:54
2041-May-18 19:51 00:04 Jupiter 1.89098134804283 1.89097882667595 1.89098386941207 4.05197553942883 3.93987954205948 2466658.327110127 3.76186961282122 355.258794766709 124.069482026959 81.5013088017266 1855609.74843831 T 13 CATAB v2.0f-lin.ifort 2020-May-22 03:53:59 2020-May-22 03:54
2056-Mar-06 08:32 00:06 Jupiter 1.85339659628506 1.8533936278902 1.85339956474303 4.31412762581029 4.20686050363157 2472063.855316087 5.82243599812088 593.573747812982 42.2086716356123 75.0600956130824 1579591.90911091 T 13 CATAB v2.0f-lin.ifort 2020-May-22 03:53:59 2020-May-22 03:54
2071-Sep-01 13:31 00:07 Jupiter 1.7526556595924 1.75265338359469 1.75265793561801 5.66422809070682 5.57825428817357 2477721.063000123 6.65654557483842 467.677814395153 73.0318401527906 78.888825367756 2244603.37321347 T 13 CATAB v2.0f-lin.ifort 2020-May-22 03:53:59 2020-May-22 03:54
2102-Feb-07 19:50 00:10 Jupiter 1.57775045519131 1.57774927643293 1.57775163410395 4.81924596668205 4.70652978114673 2488837.326195352 10.0233547897283 1281.48348548714 45.133115729163 -88.3462805497146 1870438.55256896 T 13 CATAB v2.0f-lin.ifort 2020-May-22 03:53:59 2020-May-22 03:54
2132-Apr-23 03:13 00:14 Jupiter 1.81075485921609 1.81074901950475 1.81076069961438 5.42710438819252 5.3402168240351 2499869.633783797 14.456043708424 1815.38343133253 39.4038202645517 -80.5038311842295 1949758.34946737 T 13 CATAB v2.0f-lin.ifort 2020-May-22 03:53:59 2020-May-22 03:54
2148-Jan-08 17:46 00:20 Jupiter 1.90724716571935 1.90723613240148 1.90725819921177 4.03651412410328 3.92494987755502 2505608.240093762 19.7523367348547 1124.604972255 195.5867954669 58.8691010841255 1925943.40572667 T 13 CATAB v2.0f-lin.ifort 2020-May-22 03:53:59 2020-May-22 03:54
2162-Oct-28 05:03 00:22 Jupiter 1.83990181856306 1.83989076985492 1.83991286829509 4.29868110931664 4.19021878933924 2511014.710503925 21.6711499224647 2269.06041261816 42.3121189885521 74.8710037864494 1537973.59854113 T 13 CATAB v2.0f-lin.ifort 2020-May-22 03:53:59 2020-May-22 03:54
2178-May-04 07:39 00:20 Jupiter 1.74844199879264 1.74843619430573 1.74844780358409 5.66933164760407 5.58322783075104 2516681.818671973 19.5499275145639 1233.90407918077 75.8855711517937 76.5392579110402 2242304.30039345 T 13 CATAB v2.0f-lin.ifort 2020-May-22 03:53:59 2020-May-22 03:54
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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