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33012 Eddieirizarry (1997 EJ55)
Classification: Main-belt Asteroid          SPK-ID: 2033012
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 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1033288542829248 4.8766e-08  
a 3.197357674448493 1.9715e-08 au
q 2.866978369215014 1.5281e-07 au
i 1.5841913912151 5.3712e-06 deg
node 355.736399671266 0.00013819 deg
peri 191.6284271276141 0.00013962 deg
M 22.08264945770772 1.8159e-05 deg
tp 2458872.404481191432
(2020-Jan-23.90448119)
0.00010564 TDB
period 2088.263315477701
5.72
1.9315e-05
5.288e-08
d
yr
n .172392052923483 1.5945e-09 deg/d
Q 3.527736979681973 2.1752e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1047  
   data-arc span      8509 days (23.30 yr)  
   first obs. used      1997-03-08  
   last obs. used      2020-06-24  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56861  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 00:53:00  

Additional Information
 Earth MOID = 1.86809 au 
 Jupiter MOID = 1.43278 au 
 T_jup = 3.186 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456878.5 (2014-Aug-09.0) TDB
Reference: JPL 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1038178115628161 4.8713e-08  
q 2.865360409826997 1.5262e-07 au
tp 2456777.423925823067
(2014-Apr-29.92392582)
0.00011171 TDB
node 355.7791214778113 0.00013813 deg
peri 190.7336799343947 0.00013955 deg
i 1.5848927275321 5.3715e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1047  
   data-arc span      8509 days (23.30 yr)  
   first obs. used      1997-03-08  
   last obs. used      2020-06-24  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56861  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 00:53:00  

Additional Information
 Jupiter MOID = 1.43278 au 
 T_jup = 3.186 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.373001798031806E-15 -7.387752562192877E-15 1.515788725058903E-13 6.842867416372408E-16 6.235115762827323E-14 -1.307589040489752E-16
q -7.387752562192877E-15 2.329190433817185E-14 -1.2837406576256E-12 9.708693746118445E-15 -3.46924198625975E-13 8.39189229225047E-16
tp 1.515788725058903E-13 -1.2837406576256E-12 1.247968664355574E-8 -3.717437273298449E-12 2.246738996518281E-9 -3.145425294330757E-13
node 6.842867416372408E-16 9.708693746118445E-15 -3.717437273298449E-12 1.907969026669254E-8 -1.907119277719313E-8 1.825897698844247E-10
peri 6.235115762827323E-14 -3.46924198625975E-13 2.246738996518281E-9 -1.907119277719313E-8 1.947557169309841E-8 -1.825320704230506E-10
i -1.307589040489752E-16 8.39189229225047E-16 -3.145425294330757E-13 1.825897698844247E-10 -1.825320704230506E-10 2.885315453405436E-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 14.2   n/a MPO302257  
diameter diameter 7.891 km 0.325 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.071   0.005 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

33012 Eddieirizarry           Discovered 1997 Mar. 9 by E. W. Elst at the European Southern Observatory.
Eddie Irizarry (b. 1969) is an astronomer at the Sociedad de Astronomia del Caribe. At the Arecibo Observatory he has arranged conferences related to asteroids and comets.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: MPC batch dated 2016-04-22Last Updated: 2016-04-25

[ 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
1903-Feb-13 11:47 00:03 Jupiter 1.56912438208842 1.56912311786978 1.56912564631126 1.8649740130931 1.54871442684275 2416158.991116891 2.59740271078359 190.594836642912 33.6245212504866 78.2765201039047 2164781.20164382 T 25 CATAB v2.0f-lin.ifort 2020-Nov-13 00:53:03 2020-Nov-13 00:53
1913-Dec-18 02:35 00:02 Jupiter 1.89581182810046 1.89581045185429 1.8958132043461 3.01255895706536 2.86040890768238 2420119.607653728 2.31140254557191 52.7249449123394 46.7654243704318 -53.5454289775994 1196824.60040426 T 25 CATAB v2.0f-lin.ifort 2020-Nov-13 00:53:03 2020-Nov-13 00:53
2001-Apr-17 14:10 < 00:01 Jupiter 1.86501288393254 1.86501245118357 1.8650133166815 2.93998410838457 2.78121874273534 2452017.090307772 0.422019836684058 45.5169157507392 14.0165782517665 -85.6209871878106 3244008.56024975 T 25 CATAB v2.0f-lin.ifort 2020-Nov-13 00:53:03 2020-Nov-13 00:53
2012-Feb-18 05:58 < 00:01 Jupiter 1.55316554640196 1.55316507595083 1.55316601685266 1.73223254586854 1.38200030669931 2455975.748937277 0.258789909908983 72.974968450459 50.8640142402576 73.3484903229236 1901725.41486773 T 25 CATAB v2.0f-lin.ifort 2020-Nov-13 00:53:03 2020-Nov-13 00:53
2023-Jan-11 07:10 < 00:01 Jupiter 1.41745685617648 1.41745635669972 1.41745735566138 1.34671198717461 0.786449810239355 2459955.798840816 0.446783361211907 466.720671559329 248.395786692869 28.3722739938298 1654444.2425561 T 25 CATAB v2.0f-lin.ifort 2020-Nov-13 00:53:03 2020-Nov-13 00:53
2033-Dec-07 23:34 < 00:01 Jupiter 1.53625478416985 1.53625410077455 1.53625546756673 1.77336889504612 1.42902982804108 2463939.482157176 0.868840658231266 127.74929610683 46.2468462905823 72.1285012586586 2303522.27933853 T 25 CATAB v2.0f-lin.ifort 2020-Nov-13 00:53:03 2020-Nov-13 00:53
2044-Oct-12 18:13 00:01 Jupiter 1.85105446784218 1.85105343481146 1.85105550087259 2.89955695944089 2.7371978700343 2467901.259229712 1.24456312151639 51.236238421585 32.4127930125163 -72.5614344204644 1562990.47885615 T 25 CATAB v2.0f-lin.ifort 2020-Nov-13 00:53:03 2020-Nov-13 00:53
2132-Feb-27 22:05 00:03 Jupiter 1.93052222747019 1.93052002685653 1.93052442808264 3.17313120299037 3.03170835189707 2499814.419870528 3.18613090987555 81.2712492029588 49.0395321181239 9.50108837567087 735028.727767089 T 25 CATAB v2.0f-lin.ifort 2020-Nov-13 00:53:03 2020-Nov-13 00:53
2143-Jan-01 13:02 00:03 Jupiter 1.60620627976072 1.60620431683684 1.6062082426792 1.89485836710037 1.59241990020929 2503775.042930293 3.46792914512982 70.1982511265684 45.6673904172838 -32.6484943322436 612235.536982334 T 25 CATAB v2.0f-lin.ifort 2020-Nov-13 00:53:03 2020-Nov-13 00:53
2153-Nov-22 16:26 00:04 Jupiter 1.42806491022092 1.42806421332778 1.42806560711649 1.33777145448197 0.776775605542549 2507753.185042754 3.59070648103253 492.290576763265 231.585983695425 22.3038676685542 1474157.35290275 T 25 CATAB v2.0f-lin.ifort 2020-Nov-13 00:53:03 2020-Nov-13 00:53
2164-Oct-22 01:30 00:04 Jupiter 1.49928933123182 1.4992876806187 1.49929098188338 1.6427965529303 1.25255013370334 2511739.562449127 4.10453791737582 513.711080975786 73.4814363475924 69.6281185795558 2167101.37463982 T 25 CATAB v2.0f-lin.ifort 2020-Nov-13 00:53:03 2020-Nov-13 00:53
2175-Sep-01 22:54 00:05 Jupiter 1.77806461596012 1.77806155989319 1.77806767202563 2.67211298872224 2.48745677681484 2515706.454039923 4.67695067269067 143.906709824433 27.4375632480422 -54.409303942214 1216970.8897103 T 25 CATAB v2.0f-lin.ifort 2020-Nov-13 00:53:03 2020-Nov-13 00:53

Alternate Designations
 1997 EJ55 = 1999 RQ79 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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