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461389 (2001 RE61)
Classification: Main-belt Asteroid          SPK-ID: 2461389
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 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3518061389093838 2.5561e-07  
a 2.695430303120167 2.3616e-08 au
q 1.747161375480111 6.7623e-07 au
i 10.03946112510115 1.2658e-05 deg
node 23.38358107803698 4.9584e-05 deg
peri 25.00684617956416 6.4872e-05 deg
M 55.52972756047949 1.6115e-05 deg
tp 2458751.176262426996
(2019-Sep-24.67626243)
7.3247e-05 TDB
period 1616.369275871638
4.43
2.1243e-05
5.816e-08
d
yr
n .222721382653025 2.927e-09 deg/d
Q 3.643699230760223 3.1924e-08 au
  Orbit Determination Parameters
   # obs. used (total)      165  
   data-arc span      6716 days (18.39 yr)  
   first obs. used      2001-09-11  
   last obs. used      2020-01-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .60478  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-26 12:39:06  

Additional Information
 Earth MOID = .762064 au 
 Jupiter MOID = 1.81338 au 
 T_jup = 3.257 
[ 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 17.2   n/a MPO495307  
diameter diameter 2.313 km 0.111 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.048   0.006 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

461389 (2001 RE61)          Discovered 2001-Sep-12 by LINEAR at Socorro
Reference: Last Updated: 2016-03-24

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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
1910-Nov-08 17:51 00:04 Jupiter 1.92242404509894 1.92242236969181 1.92242572052563 2.22141682484825 2.01332812229958 2418984.243631029 3.85604240496453 1029.99717811455 85.0313078148736 86.9338023419963 693729.604085653 T 10 CATAB v2.0f-lin.ifort 2020-Feb-26 12:39:21 2020-Feb-26 12:39
2066-Aug-10 22:28 00:04 Jupiter 1.9233790005768 1.92337686890572 1.92338113228504 1.24181226814986 0.813223612376513 2475873.436060255 3.60265582875242 1732.10498223368 679.937187914177 25.2501279275331 498587.076611999 T 10 CATAB v2.0f-lin.ifort 2020-Feb-26 12:39:21 2020-Feb-26 12:39
2101-Dec-21 06:00 00:05 Jupiter 1.86635951590614 1.86635783414882 1.8663611976921 1.40673791074757 1.03500631508957 2488788.750184856 5.19261135525947 1303.8080961381 440.106644001665 49.5526398612983 631599.331699483 T 10 CATAB v2.0f-lin.ifort 2020-Feb-26 12:39:21 2020-Feb-26 12:39
2137-May-11 12:52 00:07 Jupiter 1.83020029183631 1.83019932785826 1.83020125581655 1.53491076768399 1.19597019359849 2501714.036233495 7.13355938360333 1127.04645780529 308.408206198167 58.2231304961989 633750.740883566 T 10 CATAB v2.0f-lin.ifort 2020-Feb-26 12:39:21 2020-Feb-26 12:39
2172-Oct-06 12:11 00:10 Jupiter 1.81553053971882 1.81552922047299 1.81553185901036 1.63228665995165 1.3157789878239 2514646.007895538 9.68579539740768 1096.38571847803 208.547236587748 63.8662909903607 618129.475953296 T 10 CATAB v2.0f-lin.ifort 2020-Feb-26 12:39:21 2020-Feb-26 12:39
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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