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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 ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 38 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1068830080356064 1.3475e-08  
a 2.621160487463189 8.6616e-09 au
q 2.341002970019047 3.3972e-08 au
i 15.92518971769248 4.9829e-07 deg
node 39.73300812377233 2.4649e-06 deg
peri 17.27048336956726 7.1992e-06 deg
M 111.0171874298772 5.8056e-06 deg
tp 2458918.501465108601
(2020-Mar-10.00146511)
2.4279e-05 TDB
period 1550.025509965255
4.24
7.683e-06
2.103e-08
d
yr
n .2322542420660352 1.1512e-09 deg/d
Q 2.901318004907331 9.5873e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2601  
   data-arc span      14495 days (39.69 yr)  
   first obs. used      1981-10-23  
   last obs. used      2021-06-30  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .39861  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 03:16:06  

Additional Information
 Earth MOID = 1.35481 au 
 Jupiter MOID = 2.51241 au 
 T_jup = 3.342 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457584.5 (2016-Jul-15.0) TDB
Reference: JPL 38 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1052082748180919 1.3278e-08  
q 2.345242702194184 3.3288e-08 au
tp 2457363.726178297544
(2015-Dec-07.22617830)
2.4261e-05 TDB
node 39.77367934837143 2.4653e-06 deg
peri 16.3157908877352 7.3822e-06 deg
i 15.92476112599597 4.9706e-07 deg
  Orbit Determination Parameters
   # obs. used (total)      2601  
   data-arc span      14495 days (39.69 yr)  
   first obs. used      1981-10-23  
   last obs. used      2021-06-30  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .39861  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 03:16:06  

Additional Information
 Jupiter MOID = 2.51241 au 
 T_jup = 3.342 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.763155573044021E-16 -4.310178803661661E-16 1.509346592862286E-13 -8.987829518101911E-16 4.512457197295417E-14 -1.108296127652679E-15
q -4.310178803661661E-16 1.108102707894092E-15 -4.040431596866291E-13 1.890448335463061E-15 -1.201552660209253E-13 2.756196208437978E-15
tp 1.509346592862286E-13 -4.040431596866291E-13 5.885972744001968E-10 -9.174188486064713E-12 1.700222565265009E-10 -2.724278212101502E-12
node -8.987829518101911E-16 1.890448335463061E-15 -9.174188486064713E-12 6.077763399735707E-12 -8.043210131571967E-12 9.693768136715473E-13
peri 4.512457197295417E-14 -1.201552660209253E-13 1.700222565265009E-10 -8.043210131571967E-12 5.44967228405939E-11 -1.6647615012235E-12
i -1.108296127652679E-15 2.756196208437978E-15 -2.724278212101502E-12 9.693768136715473E-13 -1.6647615012235E-12 2.470722696759847E-13

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 12.76   n/a MPO614063  
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

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