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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 2459000.5 (2020-May-31.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1577948153254162 6.0719e-08  
a 3.963972753866445 7.7992e-08 au
q 3.338478405215108 2.7908e-07 au
i 9.570799152317782 8.3574e-06 deg
node 150.6044132985741 3.857e-05 deg
peri 272.1723906663798 4.7922e-05 deg
M 347.5289234850939 2.8e-05 deg
tp 2459100.360988562947
(2020-Sep-07.86098856)
0.00022517 TDB
period 2882.666611795022
7.89
8.5075e-05
2.329e-07
d
yr
n .1248843687046522 3.6857e-09 deg/d
Q 4.589467102517783 9.0298e-08 au
  Orbit Determination Parameters
   # obs. used (total)      214  
   data-arc span      5424 days (14.85 yr)  
   first obs. used      2006-01-09  
   last obs. used      2020-11-15  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .59259  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Dec-18 00:35:06  

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 21:52 00:04 Jupiter 1.82062873716173 1.82062756979095 1.82062990453519 4.26126846991219 4.15065494112346 2422170.410776433 4.1798255469147 164.109844070259 35.5160105016744 75.0062164875382 2466883.04616493 T 17 CATAB v2.0f-lin.ifort 2020-Dec-18 00:35:07 2020-Dec-18 00:35
1942-Nov-10 22:37 00:05 Jupiter 1.84719724081067 1.84719634202857 1.84719813959435 4.27857992445824 4.17003078620188 2430674.442317745 4.57773816866057 130.065124753696 29.3916767315505 75.8593516034217 3008414.64610786 T 17 CATAB v2.0f-lin.ifort 2020-Dec-18 00:35:07 2020-Dec-18 00:35
1966-Feb-19 10:38 00:04 Jupiter 1.856388833866 1.8563880104437 1.85638965728863 4.24041673308526 4.13141446360831 2439175.942831906 4.12923769714829 89.5067769795356 32.1178761619113 74.7709389382582 2848716.76569142 T 17 CATAB v2.0f-lin.ifort 2020-Dec-18 00:35:07 2020-Dec-18 00:35
1989-Jun-20 21:13 00:03 Jupiter 1.83499622164547 1.83499520753576 1.83499723575539 4.13947572332928 4.02642174390746 2447698.383817627 2.66915875323553 79.6939826000444 36.1536427695956 64.7614847878038 2264517.05144865 T 17 CATAB v2.0f-lin.ifort 2020-Dec-18 00:35:07 2020-Dec-18 00:35
2012-Dec-09 16:02 < 00:01 Jupiter 1.81462512561095 1.81462414413643 1.81462610708558 4.07004754690145 3.95369903660793 2456271.168141536 0.553045703857713 75.787770340593 37.9723506198369 67.3912613860666 2326413.42170488 T 17 CATAB v2.0f-lin.ifort 2020-Dec-18 00:35:07 2020-Dec-18 00:35
2036-Jul-29 06:58 00:02 Jupiter 1.80298933658185 1.80298847965192 1.80299019351188 4.03627234428555 3.91815246027587 2464903.790472474 2.35831945613016 87.7726720474401 35.7433278858355 76.8288510287544 2737516.5306014 T 17 CATAB v2.0f-lin.ifort 2020-Dec-18 00:35:07 2020-Dec-18 00:35
2060-May-07 04:59 00:04 Jupiter 1.79714226408044 1.79714141223028 1.79714311593102 4.01432331293066 3.89514556584632 2473586.707837245 4.39657083194206 108.259190313023 34.0298359483652 77.8364982912034 2878186.79510974 T 17 CATAB v2.0f-lin.ifort 2020-Dec-18 00:35:07 2020-Dec-18 00:35
2084-Mar-15 17:28 00:05 Jupiter 1.8028983374651 1.8028974806435 1.80289919428711 4.01417685686599 3.89538094144452 2482300.227993647 5.34078727025426 108.010668846391 34.1608842740942 77.5829917993763 2889509.49514814 T 17 CATAB v2.0f-lin.ifort 2020-Dec-18 00:35:07 2020-Dec-18 00:35
2108-Jan-13 20:23 00:05 Jupiter 1.80312023168249 1.80311937054974 1.80312109281566 3.9973217197444 3.87802442012749 2491003.349474787 5.07648326668981 99.8538869485505 33.8380956486531 75.9808486481935 2879600.6774095 T 17 CATAB v2.0f-lin.ifort 2020-Dec-18 00:35:07 2020-Dec-18 00:35
2131-Oct-06 04:25 00:04 Jupiter 1.81307667936075 1.81307574982934 1.81307760889256 4.02412204776043 3.90630387965779 2499669.684184844 4.05631120783069 94.9650662418251 35.2526083342773 72.8949144038818 2652982.03333746 T 17 CATAB v2.0f-lin.ifort 2020-Dec-18 00:35:07 2020-Dec-18 00:35
2155-Apr-30 10:22 00:03 Jupiter 1.83645104802209 1.83644995891829 1.836452137126 4.12736659907601 4.01406267797983 2508276.932166547 3.47498784490313 101.231446165388 46.5233943833371 77.7365279994453 2011725.3983373 T 17 CATAB v2.0f-lin.ifort 2020-Dec-18 00:35:07 2020-Dec-18 00:35
2178-Sep-25 18:47 00:04 Jupiter 1.85771026509468 1.85770920592522 1.85771132426403 4.30093936651708 4.1935879567202 2516826.282717933 3.94051700591949 131.525260970137 47.5629158981962 85.0990938728406 1960495.96611779 T 17 CATAB v2.0f-lin.ifort 2020-Dec-18 00:35:07 2020-Dec-18 00:35
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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