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95550 (2002 ET89)
Classification: Outer Main-belt Asteroid          SPK-ID: 2095550
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 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1029087927300048 6.0683e-08  
a 3.223123162747938 2.0407e-08 au
q 2.891435449249434 1.9642e-07 au
i 17.40273505556835 5.5934e-06 deg
node 183.9007671107626 1.5534e-05 deg
peri 24.26656126964554 2.6973e-05 deg
M 15.54570011962225 1.9958e-05 deg
tp 2458909.231363243141
(2020-Feb-29.73136324)
0.00011743 TDB
period 2113.556094588266
5.79
2.0072e-05
5.495e-08
d
yr
n .170329049189551 1.6176e-09 deg/d
Q 3.554810876246443 2.2507e-08 au
  Orbit Determination Parameters
   # obs. used (total)      745  
   data-arc span      8482 days (23.22 yr)  
   first obs. used      1997-05-01  
   last obs. used      2020-07-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53072  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 20:25:08  

Additional Information
 Earth MOID = 1.89715 au 
 Jupiter MOID = 1.41772 au 
 T_jup = 3.108 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457479.5 (2016-Apr-01.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1029105521886434 6.0486e-08  
q 2.893479359539474 1.9582e-07 au
tp 2456789.755247042427
(2014-May-12.25524704)
0.00012564 TDB
node 183.9212066616237 1.553e-05 deg
peri 23.57567292666343 2.7089e-05 deg
i 17.40147390047085 5.593e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      745  
   data-arc span      8482 days (23.22 yr)  
   first obs. used      1997-05-01  
   last obs. used      2020-07-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53072  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 20:25:08  

Additional Information
 Jupiter MOID = 1.41772 au 
 T_jup = 3.108 
Orbit Covariance (6×6)
  e q tp node peri i
e 3.658576785826963E-15 -1.179232501287164E-14 2.477497808184994E-12 3.620719885055501E-15 5.052603615387507E-13 -6.235538380366937E-15
q -1.179232501287164E-14 3.834516123994898E-14 -8.97860271772172E-12 -2.401057575120043E-14 -1.77621275862215E-12 2.196833124012233E-14
tp 2.477497808184994E-12 -8.97860271772172E-12 1.578615685239446E-8 4.639043693494043E-11 2.810094042209835E-9 -1.380207642442168E-12
node 3.620719885055501E-15 -2.401057575120043E-14 4.639043693494043E-11 2.411804213632771E-10 -2.230104859141906E-10 4.235215476862122E-11
peri 5.052603615387507E-13 -1.77621275862215E-12 2.810094042209835E-9 -2.230104859141906E-10 7.338299450249773E-10 -4.056521560117975E-11
i -6.235538380366937E-15 2.196833124012233E-14 -1.380207642442168E-12 4.235215476862122E-11 -4.056521560117975E-11 3.128208624611188E-11

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 14.4   n/a MPO436438  

95550 (2002 ET89)          Discovered 2002-Mar-12 by LINEAR at Socorro
Reference: 20041028/Numbers.arcLast Updated: 2004-10-29

[ 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
1988-Sep-15 23:22 00:01 Jupiter 1.86304037130414 1.86303914352052 1.86304159908808 3.80321833800159 3.68173588971712 2447420.473849493 1.16473313582399 151.063594515684 60.9555987995418 -80.9497010669855 2325277.8157697 T 20 CATAB v2.0f-lin.ifort 2020-Nov-12 20:25:10 2020-Nov-12 20:25
1999-Nov-16 11:04 < 00:01 Jupiter 1.53090413533897 1.53090324257489 1.53090502810314 4.36787207255722 4.23930906856304 2451498.961066968 0.61536179822921 95.2894959437972 43.715262589552 83.5261415873099 2536288.44555852 T 20 CATAB v2.0f-lin.ifort 2020-Nov-12 20:25:10 2020-Nov-12 20:25
2011-Mar-18 10:13 < 00:01 Jupiter 1.40010672941783 1.4001061522829 1.40010730655292 4.51544106907535 4.37941413010714 2455638.925771012 0.327310928458446 76.4968184389269 26.3593993856553 81.9351765468797 2716337.64581387 T 20 CATAB v2.0f-lin.ifort 2020-Nov-12 20:25:10 2020-Nov-12 20:25
2022-Jul-21 10:48 < 00:01 Jupiter 1.49099768081531 1.49099712390691 1.49099823772405 4.53251397020049 4.40539449831079 2459781.949672818 0.428218172806932 103.642155684909 25.2461494242418 -84.8851492679483 2961031.30812599 T 20 CATAB v2.0f-lin.ifort 2020-Nov-12 20:25:10 2020-Nov-12 20:25
2033-Oct-06 15:09 < 00:01 Jupiter 1.80195789089638 1.80195675802316 1.80195902377042 4.35358792057747 4.24424483638343 2463877.131308700 0.862920241246334 114.253090516339 45.1873272741788 -71.1506170886026 3619343.20109656 T 20 CATAB v2.0f-lin.ifort 2020-Nov-12 20:25:10 2020-Nov-12 20:25
2166-Apr-24 06:09 00:03 Jupiter 1.68436824862278 1.68436534750853 1.6843711497445 4.00290687922656 3.87524430608784 2512288.756323946 2.98865135960215 251.879016779883 79.0536316932342 57.131912272735 2178269.9784394 T 20 CATAB v2.0f-lin.ifort 2020-Nov-12 20:25:10 2020-Nov-12 20:25
2177-Jul-31 20:11 00:02 Jupiter 1.45815684143506 1.45815539963047 1.45815828327314 4.40557773153034 4.27169096127561 2516405.341124472 2.47247129673555 403.969054904898 33.2387953110515 80.6731810645409 2610836.98715236 T 20 CATAB v2.0f-lin.ifort 2020-Nov-12 20:25:10 2020-Nov-12 20:25
2188-Dec-06 06:40 00:03 Jupiter 1.43550930955612 1.43550842277632 1.43551019638325 4.55139608000596 4.41985360979094 2520550.777711433 2.72240370691837 489.778700135338 22.7088860370559 -85.6316477001164 2987578.63904496 T 20 CATAB v2.0f-lin.ifort 2020-Nov-12 20:25:10 2020-Nov-12 20:25
2200-Mar-20 01:49 00:04 Jupiter 1.63894996220521 1.63894657699699 1.6389533474574 4.59422318818305 4.48032037080555 2524671.575738526 3.71267728046989 466.775755277175 30.8588909096066 -69.0515447662385 3807917.82011516 T 20 CATAB v2.0f-lin.ifort 2020-Nov-12 20:25:10 2020-Nov-12 20:25

Alternate Designations
 2002 ET89 = 1997 JB3 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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