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7897 Bohuska (1995 EL1)
Classification: Main-belt Asteroid          SPK-ID: 2007897
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbit Diagram
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Note: This Java-based orbit viewer will eventually be retired.

Note: Make sure you have Java enabled on your browser to see the applet. This applet is provided as a 3D orbit visualization tool. The applet 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. For accurate long-term ephemerides, please instead use our Horizons system.

Note: If the applet is not working, here are some notes that might help.
Orbit Viewer

Additional Notes: the orbits shown in the applet are color coded. The planets are white lines, and the asteroid/comet is a blue line. The bright white line indicates the portion of the orbit that is above the ecliptic plane, and the darker portion is below the ecliptic plane. Likewise for the asteroid/comet orbit, the light blue indicates the portion above the ecliptic plane, and the dark blue the portion below the ecliptic plane.

Orbit Viewer applet originally written and kindly provided by Osamu Ajiki (AstroArts), and further modified by Ron Baalke (JPL).


Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 31 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1952457205437106 3.2225e-08  
a 3.079105060469516 1.6412e-08 au
q 2.47792297430836 9.71e-08 au
i 4.014631743054933 3.9541e-06 deg
node 170.762118536003 5.5512e-05 deg
peri 116.3985055666911 5.654e-05 deg
M 152.3484928054389 1.2092e-05 deg
tp 2458165.337762010932
(2018-Feb-15.83776201)
6.3723e-05 TDB
period 1973.491172374309
5.40
1.5778e-05
4.32e-08
d
yr
n .1824178415588673 1.4585e-09 deg/d
Q 3.680287146630672 1.9616e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1595  
   data-arc span      10397 days (28.47 yr)  
   first obs. used      1991-08-09  
   last obs. used      2020-01-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .504  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-22 18:40:34  

Additional Information
 Earth MOID = 1.46492 au 
 Jupiter MOID = 1.52347 au 
 T_jup = 3.195 
[ 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 13.8   n/a MPO452281  
diameter diameter 8.529 km 0.468 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.080   0.014 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

7897 Bohuska (1995 EL1)          Discovered 1995-Mar-12 by Sarounova, L. at Ondrejov
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ 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
1907-Sep-28 09:59 00:03 Jupiter 1.6500811417327 1.65007968734352 1.65008259612001 1.18203963580179 0.608748083445442 2417846.916096292 2.70491569673933 1894.82920503308 197.471589988027 -11.5650095611937 1214282.7595067 T 31 CATAB v2.0f-lin.ifort 2020-Feb-22 18:40:48 2020-Feb-22 18:40
1917-Apr-21 08:26 00:02 Jupiter 1.70564288002496 1.70564155005434 1.70564420999567 2.1206698921995 1.87190824693631 2421339.851408022 2.48231304970557 120.736616022173 18.5694938243872 77.8629047953842 1637786.91142177 T 31 CATAB v2.0f-lin.ifort 2020-Feb-22 18:40:48 2020-Feb-22 18:40
1967-Feb-14 10:12 00:01 Jupiter 1.65632264775057 1.65632184280298 1.65632345269532 1.21211713676306 0.668171514853156 2439535.925165201 1.25367200526128 834.135207679495 170.620694791082 -10.6608335637762 1332687.2874741 T 31 CATAB v2.0f-lin.ifort 2020-Feb-22 18:40:48 2020-Feb-22 18:40
1976-Sep-07 20:03 00:01 Jupiter 1.70404818669134 1.70404754356752 1.70404882981477 2.0838264896462 1.82980957181865 2443029.335126114 1.00124782436137 58.8824315615991 19.7566156238703 76.1904656861629 1757999.1828641 T 31 CATAB v2.0f-lin.ifort 2020-Feb-22 18:40:48 2020-Feb-22 18:40
2026-Jul-05 18:14 < 00:01 Jupiter 1.66399916832977 1.66399880213158 1.6639995345275 1.2493312980995 0.736730802369575 2461227.260047918 0.377010013760428 369.056640610946 126.091205442145 -19.1234068459484 2420250.71399644 T 31 CATAB v2.0f-lin.ifort 2020-Feb-22 18:40:48 2020-Feb-22 18:40
2036-Jan-28 20:18 < 00:01 Jupiter 1.70120739249269 1.70120686032574 1.70120792465924 2.03721409780229 1.77607754435217 2464721.345662759 0.626125832241202 45.4419032778573 21.6546750904655 74.1360240615678 1819990.31065807 T 31 CATAB v2.0f-lin.ifort 2020-Feb-22 18:40:48 2020-Feb-22 18:40
2085-Nov-26 04:57 00:02 Jupiter 1.67323124187004 1.67323039599615 1.67323208774069 1.29352907386743 0.812882639893192 2482920.706465191 1.87558715073567 469.231043462045 146.905043677223 -0.0760289600468064 1038481.96268847 T 31 CATAB v2.0f-lin.ifort 2020-Feb-22 18:40:48 2020-Feb-22 18:40
2095-Jun-22 03:40 00:02 Jupiter 1.69696301665238 1.69696187088345 1.69696416242044 1.98065026801986 1.71017397298387 2486415.653071520 2.15630965714997 107.167645200046 25.0772366016441 61.9507735950032 1464161.95712577 T 31 CATAB v2.0f-lin.ifort 2020-Feb-22 18:40:48 2020-Feb-22 18:40
2145-Apr-21 08:09 00:03 Jupiter 1.68401269769421 1.68401120095889 1.6840141944233 1.34402266322104 0.894672857095811 2504615.839535801 3.27443322011071 582.252447568895 141.809424242223 12.3514988064339 823267.429819784 T 31 CATAB v2.0f-lin.ifort 2020-Feb-22 18:40:48 2020-Feb-22 18:40
2154-Nov-16 07:16 00:04 Jupiter 1.69145670081902 1.69145495061411 1.69145845102173 1.91527941296779 1.63302326745381 2508111.802641605 3.55638744926052 179.541481513835 29.0204540013767 53.1439666509978 1354645.58984098 T 31 CATAB v2.0f-lin.ifort 2020-Feb-22 18:40:48 2020-Feb-22 18:40

Alternate Designations
 1995 EL1 = 1991 PH21 = 1991 RN31 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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