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52686 (1998 EN11)
Classification: Main-belt Asteroid          SPK-ID: 2052686
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1597753626347913 3.5942e-08  
a 3.156175592897124 2.3992e-08 au
q 2.651896493002909 1.1896e-07 au
i 26.66073717098568 5.9963e-06 deg
node 159.6955489760082 9.0665e-06 deg
peri 77.06267215939876 2.0971e-05 deg
M 298.7006184562583 1.9333e-05 deg
tp 2459349.233569097458
(2021-May-14.73356910)
0.00011156 TDB
period 2048.048148503742
5.61
2.3353e-05
6.394e-08
d
yr
n .1757771174779303 2.0043e-09 deg/d
Q 3.66045469279134 2.7826e-08 au
  Orbit Determination Parameters
   # obs. used (total)      742  
   data-arc span      9437 days (25.84 yr)  
   first obs. used      1994-08-10  
   last obs. used      2020-06-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57811  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 23:16:39  

Additional Information
 Earth MOID = 1.78261 au 
 Jupiter MOID = 1.68242 au 
 T_jup = 3.023 
[ 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 14.2   n/a MPO337679  
diameter diameter 9.162 km 0.041 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.046   0.006 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

52686 (1998 EN11)          Discovered 1998-Mar-01 by Elst, E. W. at La Silla
Reference: 20030216/Numbers.arcLast Updated: 2004-04-19

[ 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
1928-Feb-27 23:01 00:02 Jupiter 1.77958283693805 1.77958104478988 1.77958462912669 6.9187687089837 6.84962967320711 2425304.458952584 2.21523663998182 465.390507156772 32.2918010337336 79.6239213750551 2999053.85556842 T 21 CATAB v2.0f-lin.ifort 2020-Nov-12 23:16:41 2020-Nov-12 23:16
1939-Jan-07 10:52 00:02 Jupiter 1.82675130476035 1.82674940024371 1.82675320930762 7.24771514617407 7.1834546628798 2429270.952708013 1.95562545778289 406.491899025657 29.5859554031136 -77.2108473612428 3789590.04437794 T 21 CATAB v2.0f-lin.ifort 2020-Nov-12 23:16:41 2020-Nov-12 23:16
2023-Apr-16 12:37 < 00:01 Jupiter 1.92073321086663 1.92073243984654 1.92073398188704 6.75776879644957 6.69219401960911 2460051.025519363 0.432283276800872 99.9169969276933 34.7130693502343 81.0925061107632 2804048.68968894 T 21 CATAB v2.0f-lin.ifort 2020-Nov-12 23:16:41 2020-Nov-12 23:16
2034-Feb-20 23:37 < 00:01 Jupiter 1.73847087649408 1.73847023309367 1.73847151989597 7.17818440556114 7.10998494460479 2464014.484043911 0.594566721412198 146.874537218714 26.2756842923632 -82.9256255638022 3668586.6637566 T 21 CATAB v2.0f-lin.ifort 2020-Nov-12 23:16:41 2020-Nov-12 23:16
2129-Apr-07 14:22 00:03 Jupiter 1.70440397391329 1.70440337734842 1.70440457050006 7.09290253897463 7.02248846051059 2498758.098663761 2.95307101363634 720.463925521466 26.4983966698691 -89.0232702062613 3515609.27414531 T 21 CATAB v2.0f-lin.ifort 2020-Nov-12 23:16:41 2020-Nov-12 23:16

Alternate Designations
 1998 EN11 = 1994 PY15 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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