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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 2459000.5 (2020-May-31.0) TDB
Reference: JPL 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2049490555320679 5.2377e-08  
a 2.587412888010385 1.1493e-08 au
q 2.057125060341156 1.3422e-07 au
i 10.87787367667759 5.206e-06 deg
node 335.572953031669 2.3567e-05 deg
peri 229.8309587166181 2.5107e-05 deg
M 272.2582227924473 1.0034e-05 deg
tp 2459371.010874003382
(2021-Jun-05.51087400)
4.3033e-05 TDB
period 1520.187063520477
4.16
1.0129e-05
2.773e-08
d
yr
n .2368129611406543 1.5778e-09 deg/d
Q 3.117700715679613 1.3848e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1185  
   data-arc span      21940 days (60.07 yr)  
   first obs. used      1960-10-22  
   last obs. used      2020-11-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52053  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Dec-17 21:26:45  

Additional Information
 Earth MOID = 1.07345 au 
 Jupiter MOID = 1.93238 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 14.5   n/a MPO502480  
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 00:01 Jupiter 1.92263069827194 1.92263025907236 1.92263113752497 2.83135080143111 2.67122434377694 2429601.655938689 1.37940791219551 1297.110484409 13.2332340129661 88.8792536614207 2184044.73271397 T 22 CATAB v2.0f-lin.ifort 2020-Dec-17 21:26:48 2020-Dec-17 21:26
2010-Jul-21 13:44 < 00:01 Jupiter 1.99135829697842 1.99135789844649 1.99135869551624 3.45279240822782 3.32732282137743 2455399.071964744 0.16108433673679 377.053638632259 11.5741718811998 87.8408445545652 2671473.36506269 T 22 CATAB v2.0f-lin.ifort 2020-Dec-17 21:26:48 2020-Dec-17 21:26
2023-Jul-17 04:51 < 00:01 Jupiter 1.97221639196105 1.97221592952239 1.97221685440429 2.09379411766798 1.87750335753364 2460142.702429479 0.255637894005257 175.065412981391 46.2328331715382 89.9793493753282 1647735.08225945 T 22 CATAB v2.0f-lin.ifort 2020-Dec-17 21:26:48 2020-Dec-17 21:26
2094-Feb-23 22:36 00:01 Jupiter 1.93434343211289 1.93434295217698 1.93434391204869 2.7476235269811 2.58334326362146 2485932.441940678 1.48563613867756 955.261799059881 13.8009321346397 88.7244321067649 1777994.69634011 T 22 CATAB v2.0f-lin.ifort 2020-Dec-17 21:26:48 2020-Dec-17 21:26
2177-Oct-08 13:36 00:03 Jupiter 1.97104559076236 1.97104475604027 1.97104642549162 1.96922239078057 1.73734615302455 2516474.066752864 3.19660457732539 392.198748247107 74.7051071759862 68.059180408778 1683017.31134318 T 22 CATAB v2.0f-lin.ifort 2020-Dec-17 21:26:48 2020-Dec-17 21:26

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