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JPL Small-Body Database Browser
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26436 (1999 YV4)
Classification: Main-belt Asteroid          SPK-ID: 2026436
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 31 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09784899948087035 3.98e-08  
a 2.253742811566193 8.0663e-09 au
q 2.033216332367237 9.1828e-08 au
i 2.339660838479969 3.4095e-06 deg
node 294.0951413342332 9.5917e-05 deg
peri 261.011511950937 9.7719e-05 deg
M 299.6462777079306 2.1201e-05 deg
tp 2459207.684145297368
(2020-Dec-24.18414530)
7.3284e-05 TDB
period 1235.819258108181
3.38
6.6346e-06
1.816e-08
d
yr
n .2913047337934317 1.5639e-09 deg/d
Q 2.474269290765149 8.8556e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1361  
   data-arc span      15040 days (41.18 yr)  
   first obs. used      1978-11-28  
   last obs. used      2020-02-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53555  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 00:45:01  

Additional Information
 Earth MOID = 1.03344 au 
 Jupiter MOID = 2.4903 au 
 T_jup = 3.618 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456769.5 (2014-Apr-22.0) TDB
Reference: JPL 31 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09771479744530143 3.9841e-08  
q 2.033183847514934 9.1873e-08 au
tp 2456736.694227144173
(2014-Mar-20.19422714)
6.8373e-05 TDB
node 294.1690213201473 9.5936e-05 deg
peri 261.0809207647104 9.7745e-05 deg
i 2.339439036085194 3.4097e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1361  
   data-arc span      15040 days (41.18 yr)  
   first obs. used      1978-11-28  
   last obs. used      2020-02-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53555  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 00:45:01  

Additional Information
 Jupiter MOID = 2.4903 au 
 T_jup = 3.618 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.587315907043379E-15 -3.649658333007649E-15 -8.90279396422379E-13 4.012108676444718E-16 -2.145336943426771E-13 3.37704239284958E-16
q -3.649658333007649E-15 8.440664682649514E-15 2.152748270355283E-12 -1.391005083373455E-15 5.227293709772057E-13 -7.360189802171781E-16
tp -8.90279396422379E-13 2.152748270355283E-12 4.67484795839373E-9 -1.292774880691608E-12 1.295348988433947E-9 2.244444534582886E-13
node 4.012108676444718E-16 -1.391005083373455E-15 -1.292774880691608E-12 9.203623112244874E-9 -9.195970893567601E-9 4.768889956104082E-11
peri -2.145336943426771E-13 5.227293709772057E-13 1.295348988433947E-9 -9.195970893567601E-9 9.554155896417561E-9 -4.759487008088856E-11
i 3.37704239284958E-16 -7.360189802171781E-16 2.244444534582886E-13 4.768889956104082E-11 -4.759487008088856E-11 1.162628830212136E-11

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.2   n/a MPO416973  
diameter diameter 2.570 km 0.324 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.293   0.060 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

26436 (1999 YV4)          Discovered 1999-Dec-28 by Hug, G., Bell, G. at Farpoint
Reference: 20010705/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1999 YV4 = 1978 WL21 = 1998 RJ32 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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