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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.


Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1581070711589786 5.4358e-08  
a 3.965458570800854 6.8751e-08 au
q 3.338491530369262 2.4244e-07 au
i 9.57078237217236 7.5396e-06 deg
node 150.5996017921858 3.7175e-05 deg
peri 272.1617551931307 4.5541e-05 deg
M 12.50992603193315 2.4236e-05 deg
tp 2459100.271600969340
(2020-Sep-07.77160097)
0.00019384 TDB
period 2884.287529673081
7.90
7.5009e-05
2.054e-07
d
yr
n .1248141859285451 3.2459e-09 deg/d
Q 4.592425611232446 7.962e-08 au
  Orbit Determination Parameters
   # obs. used (total)      255  
   data-arc span      5509 days (15.08 yr)  
   first obs. used      2006-01-09  
   last obs. used      2021-02-08  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .57369  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-14 05:14:19  

Additional Information
 Earth MOID = 2.37046 au 
 Jupiter MOID = .985699 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 21:52 00:04 Jupiter 1.82062857320164 1.82062748184731 1.82062966455877 4.26126823970095 4.15065469530214 2422170.411264600 4.15903726545212 158.89769078554 32.3069836630138 75.1967870862561 2712014.5025827 T 19 CATAB v2.0f-lin.ifort 2021-Apr-14 05:14:20 2021-Apr-14 05:14
1942-Nov-10 22:37 00:04 Jupiter 1.84719719686181 1.8471963569498 1.84719803677498 4.27857994419759 4.17003080444628 2430674.442702061 4.44475864056162 122.175138990899 28.845257038591 76.5886526378982 3093137.24341739 T 19 CATAB v2.0f-lin.ifort 2021-Apr-14 05:14:20 2021-Apr-14 05:14
1966-Feb-19 10:38 00:04 Jupiter 1.8563888508139 1.85638807598768 1.85638962564032 4.24041672032655 4.13141445213134 2439175.942915860 3.92714931508071 80.8272272283375 31.2981687615241 75.5503706700254 2915732.40998194 T 19 CATAB v2.0f-lin.ifort 2021-Apr-14 05:14:20 2021-Apr-14 05:14
1989-Jun-20 21:13 00:03 Jupiter 1.83499622559464 1.83499530176856 1.83499714942082 4.13947560890137 4.02642162714668 2447698.383785743 2.52165627374957 72.0447613862419 33.3749127925916 65.0755182193689 2449778.16392002 T 19 CATAB v2.0f-lin.ifort 2021-Apr-14 05:14:20 2021-Apr-14 05:14
2012-Dec-09 16:02 < 00:01 Jupiter 1.8146251252696 1.81462424107661 1.8146260094627 4.07004737653761 3.95369886186065 2456271.168133770 0.547832214625714 68.5586018724922 33.7552410864633 66.9799236089945 2569857.75217595 T 19 CATAB v2.0f-lin.ifort 2021-Apr-14 05:14:20 2021-Apr-14 05:14
2036-Jul-29 06:58 00:02 Jupiter 1.80298935294408 1.80298856226388 1.8029901436245 4.03627219938294 3.91815231275538 2464903.790545685 1.96902089897698 77.0533940940527 32.1165539628359 74.9192603786944 2918258.16855035 T 19 CATAB v2.0f-lin.ifort 2021-Apr-14 05:14:20 2021-Apr-14 05:14
2060-May-07 05:00 00:04 Jupiter 1.79714228527219 1.79714148659448 1.79714308395032 4.01432317984945 3.89514543078858 2473586.707988118 3.68924367311124 93.2604003638138 31.0860575950424 76.0887777060062 2999253.65670863 T 19 CATAB v2.0f-lin.ifort 2021-Apr-14 05:14:20 2021-Apr-14 05:14
2084-Mar-15 17:29 00:04 Jupiter 1.80289835888107 1.8028975566271 1.80289916113536 4.01417674671428 3.89538083003248 2482300.228204341 4.42843428445915 92.9126058684219 31.2426425060862 75.8834444404608 3011154.5624199 T 19 CATAB v2.0f-lin.ifort 2021-Apr-14 05:14:20 2021-Apr-14 05:14
2108-Jan-13 20:23 00:04 Jupiter 1.80312026820746 1.80311946086136 1.80312107555386 3.99732172336765 3.87802442698509 2491003.349565598 4.16724876057406 86.7571122681791 31.3401492276099 74.5956268270722 2988103.75945083 T 19 CATAB v2.0f-lin.ifort 2021-Apr-14 05:14:20 2021-Apr-14 05:14
2131-Oct-06 04:25 00:03 Jupiter 1.81307673797661 1.81307585716182 1.8130776187916 4.02412220924633 3.9063040505414 2499669.684117027 3.43903450421086 84.0655522784183 34.8389632746809 73.4030584237279 2668633.68603295 T 19 CATAB v2.0f-lin.ifort 2021-Apr-14 05:14:20 2021-Apr-14 05:14
2155-Apr-30 10:22 00:03 Jupiter 1.83645110116811 1.83645008752384 1.83645211481237 4.12736683357619 4.01406292305918 2508276.931995739 3.32344278562744 93.4968891807492 44.746375625813 81.1677425791434 2113963.02278652 T 19 CATAB v2.0f-lin.ifort 2021-Apr-14 05:14:20 2021-Apr-14 05:14
2178-Sep-25 18:47 00:04 Jupiter 1.85771025927964 1.85770929425441 1.85771122430488 4.30093941703741 4.19358800879409 2516826.282551266 3.93252031326844 127.211505814042 43.5572771089209 86.2990962525104 2137542.14963661 T 19 CATAB v2.0f-lin.ifort 2021-Apr-14 05:14:20 2021-Apr-14 05:14
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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