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JPL Small-Body Database Browser
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13968 (1991 RE7)
Classification: Main-belt Asteroid          SPK-ID: 2013968
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 34 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1534546575862245 3.9424e-08  
a 3.18298322560262 2.0252e-08 au
q 2.694539624615074 1.2576e-07 au
i 17.54356316830862 6.4413e-06 deg
node 7.812540268103413 1.3317e-05 deg
peri 277.9579865565725 2.4327e-05 deg
M 84.29628464963534 1.9622e-05 deg
tp 2458514.813665097557
(2019-Jan-31.31366510)
0.00011334 TDB
period 2074.196760765965
5.68
1.9796e-05
5.42e-08
d
yr
n .173561161992683 1.6565e-09 deg/d
Q 3.671426826590167 2.336e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1988  
   data-arc span      10371 days (28.39 yr)  
   first obs. used      1991-09-02  
   last obs. used      2020-01-24  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .44282  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-22 20:48:30  

Additional Information
 Earth MOID = 1.75019 au 
 Jupiter MOID = 1.81349 au 
 T_jup = 3.109 
[ 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 12.1   n/a MPO502275  
diameter diameter 18.386 km 0.198 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.100   0.005 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

13968 (1991 RE7)          Discovered 1991-Sep-02 by McNaught, R. H. at Siding Spring
Reference: 20000320/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
1941-Jun-06 14:04 00:02 Jupiter 1.91103208371762 1.91103097225157 1.91103319518464 3.84545065974457 3.7284092061268 2430152.086002784 2.37358399503456 266.661736094698 63.8146566918947 -89.5584052047313 1824336.18904395 T 34 CATAB v2.0f-lin.ifort 2020-Feb-22 20:48:37 2020-Feb-22 20:48
1952-Jun-01 03:35 00:02 Jupiter 1.84497430035347 1.84497371502442 1.84497488568336 5.33058608873423 5.2437537766952 2434164.649168611 1.6419346279123 734.384855636515 27.9610647030811 89.9804657670111 3193189.03685197 T 34 CATAB v2.0f-lin.ifort 2020-Feb-22 20:48:37 2020-Feb-22 20:48
1963-Jun-12 01:18 00:01 Jupiter 1.98389169136667 1.98389093962126 1.98389244311479 6.22054544411432 6.15152710019641 2438192.554454264 1.30181023921554 345.156133084665 33.9330570248441 87.713627787701 3067183.60258026 T 34 CATAB v2.0f-lin.ifort 2020-Feb-22 20:48:37 2020-Feb-22 20:48
2083-Nov-17 04:35 00:03 Jupiter 1.96434970177688 1.9643487372739 1.96435066628075 3.50938047130734 3.38428078919371 2482180.690849106 2.91604466676143 215.377778043355 64.8716827075933 87.0906771867673 1154051.92642943 T 34 CATAB v2.0f-lin.ifort 2020-Feb-22 20:48:37 2020-Feb-22 20:48
2094-Oct-29 00:17 00:03 Jupiter 1.89111818684754 1.89111758347139 1.89111879022616 5.28100832196305 5.19550370544858 2486179.511928993 2.79631670966367 528.104689012086 27.7326316767876 -89.7573357762994 1931126.68878443 T 34 CATAB v2.0f-lin.ifort 2020-Feb-22 20:48:37 2020-Feb-22 20:48
2105-Nov-06 05:32 00:03 Jupiter 1.99674588572802 1.99674424608958 1.99674752537485 6.30717770824538 6.23955829586998 2490204.730705656 3.10135731295542 386.974012819812 65.8849175122288 83.2888526104984 1598173.60332554 T 34 CATAB v2.0f-lin.ifort 2020-Feb-22 20:48:37 2020-Feb-22 20:48

Alternate Designations
 1991 RE7 = 1995 FJ1 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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