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13487 (1981 VN)
Classification: Main-belt Asteroid          SPK-ID: 2013487
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 29 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1066550049618309 4.5491e-08  
a 2.621161187179315 1.0009e-08 au
q 2.341601227754946 1.2062e-07 au
i 15.92502005932577 5.6438e-06 deg
node 39.74666360286518 1.3107e-05 deg
peri 17.32073984658441 2.6089e-05 deg
M 19.00995345892111 2.1164e-05 deg
tp 2458918.650209434934
(2020-Mar-10.15020943)
9.1093e-05 TDB
period 1550.026130631896
4.24
8.878e-06
2.431e-08
d
yr
n .2322541490660158 1.3303e-09 deg/d
Q 2.900721146603683 1.1076e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1959  
   data-arc span      14213 days (38.91 yr)  
   first obs. used      1981-10-23  
   last obs. used      2020-09-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .42541  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Oct-22 16:33:45  

Additional Information
 Earth MOID = 1.35592 au 
 Jupiter MOID = 2.51096 au 
 T_jup = 3.342 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456870.5 (2014-Aug-01.0) TDB
Reference: JPL 29 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1055661008146344 4.5709e-08  
q 2.344995338386736 1.2113e-07 au
tp 2457363.338583462170
(2015-Dec-06.83858346)
9.1996e-05 TDB
node 39.78435519251801 1.3111e-05 deg
peri 16.20874659307657 2.6276e-05 deg
i 15.92293209940511 5.6448e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1959  
   data-arc span      14213 days (38.91 yr)  
   first obs. used      1981-10-23  
   last obs. used      2020-09-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .42541  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Oct-22 16:33:45  

Additional Information
 Jupiter MOID = 2.51096 au 
 T_jup = 3.342 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.089267934210702E-15 -5.52158681122014E-15 -2.228878298829759E-12 6.622757641760794E-15 -5.516415509290202E-13 -3.15990720694764E-15
q -5.52158681122014E-15 1.46717351050384E-14 5.830251671381771E-12 -1.765191082942535E-14 1.437006178807287E-12 8.361644524122891E-15
tp -2.228878298829759E-12 5.830251671381771E-12 8.463223453242615E-9 -1.475478349902769E-11 2.104901009870802E-9 5.452482316344592E-12
node 6.622757641760794E-15 -1.765191082942535E-14 -1.475478349902769E-11 1.71885468925877E-10 -1.684324849383871E-10 -2.604612684011507E-11
peri -5.516415509290202E-13 1.437006178807287E-12 2.104901009870802E-9 -1.684324849383871E-10 6.904290396122372E-10 2.635312903293118E-11
i -3.15990720694764E-15 8.361644524122891E-15 5.452482316344592E-12 -2.604612684011507E-11 2.635312903293118E-11 3.1863298135158E-11

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 12.8   n/a MPO502271  
diameter diameter 8.892 km 0.110 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
geometric albedo albedo 0.223   0.027 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  

13487 (1981 VN)          Discovered 1981-Nov-02 by Skiff, B. A. at Anderson Mesa
Reference: 20000222/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
2126-Apr-24 18:28 00:03 Amphi 0.0380531615067264 0.0380395353517371 0.0380667947610953 4.33233561446579 4.33233557959512 2497679.269106432 3.32030116293365 1065.00515757568 32.1509370163465 50.3961643259805 136400.522585353 T 29 CATAB v2.0f-lin.ifort 2020-Oct-22 16:34:04 2020-Oct-22 16:34

Alternate Designations
 1981 VN = 1992 HF5 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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