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295396 (2008 JW7)
Classification: Outer Main-belt Asteroid          SPK-ID: 2295396
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 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1577948118185621 6.2116e-08  
a 3.963972758780989 8.0025e-08 au
q 3.338478423255236 2.8701e-07 au
i 9.570800065805539 8.4813e-06 deg
node 150.6044155988519 3.8748e-05 deg
peri 272.17238986286 4.8343e-05 deg
M 347.528921604465 2.8816e-05 deg
tp 2459100.361003807620
(2020-Sep-07.86100381)
0.00023184 TDB
period 2882.666617155929
7.89
8.7293e-05
2.39e-07
d
yr
n .1248843684724042 3.7818e-09 deg/d
Q 4.589467094306742 9.2652e-08 au
  Orbit Determination Parameters
   # obs. used (total)      210  
   data-arc span      5340 days (14.62 yr)  
   first obs. used      2006-01-09  
   last obs. used      2020-08-23  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .59631  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-11 19:49:33  

Additional Information
 Earth MOID = 2.37107 au 
 Jupiter MOID = .987326 au 
 T_jup = 3.012 
[ 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 14.6   n/a MPO455183  
diameter diameter 7.546 km 0.814 urn:nasa:pds:neowise_diameters_albedos::2.0[hildas] (http://adsabs.harvard.edu/abs/2012ApJ...744..197G)  
geometric albedo albedo 0.045   0.012 urn:nasa:pds:neowise_diameters_albedos::2.0[hildas] (http://adsabs.harvard.edu/abs/2012ApJ...744..197G)  

295396 (2008 JW7)          Discovered 2008-May-05 by Mt. Lemmon Survey at Mount Lemmon
Reference: 20110912/Numbers.arcLast Updated: 2011-09-14

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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
1919-Jul-30 21:51 00:04 Jupiter 1.82062876815642 1.82062758464842 1.82062995166712 4.26126857955797 4.15065505559947 2422170.410758395 4.18474891307239 164.931116180323 36.2215159897065 74.9489447306023 2418505.06564584 T 16 CATAB v2.0f-lin.ifort 2020-Nov-11 19:49:34 2020-Nov-11 19:49
1942-Nov-10 22:37 00:05 Jupiter 1.8471972691078 1.84719635933617 1.847198178881 4.27857997474953 4.17003083948679 2430674.442282395 4.60852555685908 131.409349530282 29.5029549875738 75.7325172780882 2991236.22485422 T 16 CATAB v2.0f-lin.ifort 2020-Nov-11 19:49:34 2020-Nov-11 19:49
1966-Feb-19 10:38 00:04 Jupiter 1.85638885267769 1.85638802185797 1.85638968349784 4.24041672829905 4.13141445981497 2439175.942805330 4.17539765294655 90.8638897273698 32.2804174746498 74.7306718564481 2836376.87488355 T 16 CATAB v2.0f-lin.ifort 2020-Nov-11 19:49:34 2020-Nov-11 19:49
1989-Jun-20 21:13 00:03 Jupiter 1.83499623202299 1.83499520119164 1.83499726285455 4.13947566632648 4.02642168595247 2447698.383793341 2.70272337803984 80.8470343701501 36.7761422862845 64.7230837295921 2227119.28979766 T 16 CATAB v2.0f-lin.ifort 2020-Nov-11 19:49:34 2020-Nov-11 19:49
2012-Dec-09 16:02 < 00:01 Jupiter 1.81462513574391 1.81462413616768 1.81462613532024 4.07004749122244 3.95369897994967 2456271.168149507 0.554190556726359 76.9140793116026 38.8864509904246 67.5681119466755 2280259.42435085 T 16 CATAB v2.0f-lin.ifort 2020-Nov-11 19:49:34 2020-Nov-11 19:49
2036-Jul-29 06:58 00:02 Jupiter 1.80298935330453 1.80298848527739 1.80299022133178 4.03627229063411 3.91815240611909 2464903.790505728 2.44070823554073 89.7696284013656 36.4490504907185 77.3086062546255 2704618.83301326 T 16 CATAB v2.0f-lin.ifort 2020-Nov-11 19:49:34 2020-Nov-11 19:49
2060-May-07 04:59 00:05 Jupiter 1.79714228603788 1.79714142600177 1.79714314607441 4.0143232712059 3.89514552432332 2473586.707910606 4.54676720860364 111.214850948494 34.5695177580433 78.2196534547033 2856463.2086344 T 16 CATAB v2.0f-lin.ifort 2020-Nov-11 19:49:34 2020-Nov-11 19:49
2084-Mar-15 17:28 00:06 Jupiter 1.80289835939958 1.80289749422387 1.8028992245757 4.01417682162389 3.89538090659499 2482300.228076839 5.53332135327025 110.937641967055 34.7022423515436 77.9626669593665 2867391.68370494 T 16 CATAB v2.0f-lin.ifort 2020-Nov-11 19:49:34 2020-Nov-11 19:49
2108-Jan-13 20:23 00:05 Jupiter 1.80312025294364 1.80311938355117 1.80312112233652 3.99732167834264 3.87802437888042 2491003.349565723 5.26731751074171 102.280654371346 34.3253556492255 76.3214816134419 2858923.76577956 T 16 CATAB v2.0f-lin.ifort 2020-Nov-11 19:49:34 2020-Nov-11 19:49
2131-Oct-06 04:25 00:04 Jupiter 1.81307670598642 1.81307576871817 1.81307764325508 4.02412203409077 3.90630386733213 2499669.684255323 4.18797877467958 96.8742116731497 35.3264290526 72.8914904906697 2650770.53262691 T 16 CATAB v2.0f-lin.ifort 2020-Nov-11 19:49:34 2020-Nov-11 19:49
2155-Apr-30 10:22 00:04 Jupiter 1.83645108242801 1.83644997891281 1.8364521859432 4.12736663286273 4.01406271487294 2508276.932203623 3.5092651163606 102.55757718546 46.8270556413615 77.2059150984316 1992920.39568895 T 16 CATAB v2.0f-lin.ifort 2020-Nov-11 19:49:34 2020-Nov-11 19:49
2178-Sep-25 18:47 00:04 Jupiter 1.85771030122365 1.85770922350282 1.85771137894447 4.30093941796903 4.19358801160377 2516826.282730090 3.9419305845529 132.211300760782 48.3569491919577 84.9313610179835 1927498.56445214 T 16 CATAB v2.0f-lin.ifort 2020-Nov-11 19:49:34 2020-Nov-11 19:49
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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