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187802 (1999 JU2)
Classification: Main-belt Asteroid          SPK-ID: 2187802
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2231465920418709 6.1395e-08  
a 2.694806169381623 1.6006e-08 au
q 2.093469356470705 1.649e-07 au
i 13.80676765515049 4.0316e-06 deg
node 115.9607747506725 2.9171e-05 deg
peri 118.3087613312546 3.1933e-05 deg
M 357.6883852736028 1.1874e-05 deg
tp 2459406.875348136544
(2021-Jul-11.37534814)
5.3264e-05 TDB
period 1615.807896749941
4.42
1.4396e-05
3.941e-08
d
yr
n .2227987626029735 1.985e-09 deg/d
Q 3.296142982292541 1.9578e-08 au
  Orbit Determination Parameters
   # obs. used (total)      514  
   data-arc span      8088 days (22.14 yr)  
   first obs. used      1999-05-08  
   last obs. used      2021-06-29  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .49488  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-09 02:47:18  

Additional Information
 Earth MOID = 1.12048 au 
 Jupiter MOID = 1.889 au 
 T_jup = 3.293 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457667.5 (2016-Oct-06.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2240776097883429 6.1374e-08  
q 2.09147865914469 1.6511e-07 au
tp 2457789.475295188205
(2017-Feb-04.97529519)
5.8936e-05 TDB
node 115.9946723613959 2.9178e-05 deg
peri 118.0645167666161 3.1904e-05 deg
i 13.8057457240905 4.0314e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      514  
   data-arc span      8088 days (22.14 yr)  
   first obs. used      1999-05-08  
   last obs. used      2021-06-29  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .49488  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-09 02:47:18  

Additional Information
 Jupiter MOID = 1.889 au 
 T_jup = 3.293 
Orbit Covariance (6×6)
  e q tp node peri i
e 3.766765524721513E-15 -1.010540969801619E-14 -1.775503802809302E-12 2.463770743479546E-15 -3.170057698849219E-13 -2.983380532445628E-14
q -1.010540969801619E-14 2.72610254576826E-14 4.416775978782788E-12 -5.298667523079292E-15 7.653675795477709E-13 7.997474095734351E-14
tp -1.775503802809302E-12 4.416775978782788E-12 3.473509050277905E-9 4.350156711320065E-12 8.296332041728051E-10 2.109922848109079E-11
node 2.463770743479546E-15 -5.298667523079292E-15 4.350156711320065E-12 8.513394109667402E-10 -8.256374626912716E-10 1.128409178731626E-11
peri -3.170057698849219E-13 7.653675795477709E-13 8.296332041728051E-10 -8.256374626912716E-10 1.017835494470617E-9 -6.674562186416147E-12
i -2.983380532445628E-14 7.997474095734351E-14 2.109922848109079E-11 1.128409178731626E-11 -6.674562186416147E-12 1.625234567526192E-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 16.19   n/a MPCxxxxx  

187802 (1999 JU2)          Discovered 1999-May-08 by Beijing Schmidt CCD Asteroid Program at Xinglong
Reference: 20080618/Numbers.arcLast Updated: 2008-06-20

[ show close-approach data ]
Alternate Designations
 1999 JU2 = 2003 FP 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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