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(2012 XE54)
Classification: Apollo [NEO]          SPK-ID: 3619633
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 7 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .5592932158352217 0.00013717  
a 1.910081941703381 0.00055036 AU
q .8417860700193123 1.9469e-05 AU
i 8.027751587007057 0.0016851 deg
node 259.1730699704078 1.5319e-05 deg
peri 234.0094853880105 0.00055244 deg
M 257.5882936381798 0.1103 deg
tp 2457274.798559239870
(2015-Sep-09.29855924)
0.41397 JED
period 964.2206426819885
2.64
0.41674
0.001141
d
yr
n .3733585281877566 0.00016137 deg/d
Q 2.978377813387449 0.00085817 AU
  Orbit Determination Parameters
   # obs. used (total)      188  
   data-arc span      2 days  
   first obs. used      2012-12-09  
   last obs. used      2012-12-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      6  
   fit RMS      .44594  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Jun-13 16:53:38  

Additional Information
 Earth MOID = .00121975 AU 
 T_jup = 3.719 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 25.4 mag n/a MPO258433  

[ 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
2002-Apr-14 19:07 1_10:55 Earth 0.26474547508067 0.195734858777262 0.341110883802696 19.219518131903 19.2189944745185 2452379.296634647 2095.34509614886 4052012.98698855 35.2955525321865 29.0816704103017 471663.298688132 T 7 CATAB v2.0c-linF95 2014-Jun-13 16:53:42 2014-Jun-13 16:53
2012-Dec-11 10:05 < 00:01 Earth 0.00150432546088391 0.00150334940153402 0.00150530168519242 13.2660486816885 13.131855298693 2456272.919866201 0.00513077844256396 52.0653852980425 0.292364114113524 -0.71553300789648 3212.99763373094 T 7 CATAB v2.0c-linF95 2014-Jun-13 16:53:42 2014-Jun-13 16:53
2012-Dec-11 16:49 < 00:01 Moon 0.00218050120532224 0.00217956720903298 0.00218143529312464 13.2476783462723 13.2465437502329 2456273.200836216 0.0893901317375881 49.1419647992412 0.543091730151852 12.6387553173354 126327.673379164 T 7 CATAB v2.0c-linF95 2014-Jun-13 16:53:42 2014-Jun-13 16:53
2023-Nov-25 03:36 1_01:56 Mars 0.0685781442345762 0.068389515411111 0.0987370024829791 16.8341236974158 16.8338757080014 2460273.650316546 1556.3261773833 3174764.29027997 56.9025647932064 85.4562610279097 172217.099170291 T 7 CATAB v2.0c-linF95 2014-Jun-13 16:53:42 2014-Jun-13 16:53
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Close-Approach Data ]
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