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JPL Small-Body Database Browser
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48686 (1996 EM1)
Classification: Main-belt Asteroid          SPK-ID: 2048686
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2052735310312238 6.1412e-08  
a 2.586856943058851 1.2651e-08 au
q 2.055843684084523 1.5558e-07 au
i 10.87837284797895 6.1488e-06 deg
node 335.5884851438038 2.454e-05 deg
peri 229.8235537069243 2.6432e-05 deg
M 177.5320114442831 1.0284e-05 deg
tp 2457851.069751376355
(2017-Apr-07.56975138)
4.3212e-05 TDB
period 1519.697136925556
4.16
1.1148e-05
3.052e-08
d
yr
n .2368893059365124 1.7377e-09 deg/d
Q 3.117870202033178 1.5248e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1053  
   data-arc span      21586 days (59.10 yr)  
   first obs. used      1960-10-22  
   last obs. used      2019-11-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53418  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-04 03:36:56  

Additional Information
 Earth MOID = 1.07248 au 
 Jupiter MOID = 1.93344 au 
 T_jup = 3.367 
[ 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 14.4   n/a MPO417154  
diameter diameter 3.434 km 0.566 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.313   0.078 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

48686 (1996 EM1)          Discovered 1996-Mar-10 by Endate, K., Watanabe, K. at Kitami
Reference: 20021120/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
1939-Dec-04 03:45 00:02 Jupiter 1.92263066840212 1.92263015245081 1.92263118445136 2.83135042027121 2.67122393720615 2429601.655912748 1.53808288295432 1552.8051425961 13.9317394957185 88.8780222640941 1955157.26481781 T 17 CATAB v2.0f-lin.ifort 2019-Dec-04 03:37:10 2019-Dec-04 03:37
2010-Jul-21 13:44 < 00:01 Jupiter 1.99135823631146 1.99135774735583 1.99135872527637 3.45279185061601 3.32732223884418 2455399.071992886 0.163740197026797 448.811915910958 13.2952796855958 87.7495808595177 2179366.67106578 T 17 CATAB v2.0f-lin.ifort 2019-Dec-04 03:37:10 2019-Dec-04 03:37
2023-Jul-17 04:52 < 00:01 Jupiter 1.97221639459849 1.97221587901415 1.97221691018923 2.0937934631033 1.87750262786816 2460142.702476639 0.307642203719213 208.55647057418 50.3384502738755 87.7611535731224 1498662.53951057 T 17 CATAB v2.0f-lin.ifort 2019-Dec-04 03:37:10 2019-Dec-04 03:37
2094-Feb-23 22:37 00:02 Jupiter 1.93434339384996 1.93434281054664 1.93434397715371 2.7476226293658 2.58334230557197 2485932.442038971 1.70713440980122 1063.25379374434 14.1397556253877 88.7624349127398 1429687.57263286 T 17 CATAB v2.0f-lin.ifort 2019-Dec-04 03:37:10 2019-Dec-04 03:37
2177-Oct-08 13:36 00:04 Jupiter 1.97104563275559 1.97104475588177 1.97104650964029 1.96922138873979 1.73734502251536 2516474.066918005 3.64904053872065 476.695318373886 76.0058466525258 68.7230233773456 1584002.59350969 T 17 CATAB v2.0f-lin.ifort 2019-Dec-04 03:37:10 2019-Dec-04 03:37

Alternate Designations
 1996 EM1 = 1999 XM165 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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