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85841 (1998 YR6)
Classification: Main-belt Asteroid          SPK-ID: 2085841
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 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1686791215163524 3.1432e-08  
a 2.624755620885195 1.0183e-08 au
q 2.182014148559172 8.2863e-08 au
i 4.563823863928132 4.0591e-06 deg
node 76.05839112542556 5.133e-05 deg
peri 26.44698876751528 5.3348e-05 deg
M 105.4956885103778 1.3594e-05 deg
tp 2458941.340146862474
(2020-Apr-01.84014686)
5.8046e-05 TDB
period 1553.215581065101
4.25
9.0387e-06
2.475e-08
d
yr
n .2317772267988284 1.3488e-09 deg/d
Q 3.067497093211219 1.1901e-08 au
  Orbit Determination Parameters
   # obs. used (total)      556  
   data-arc span      11023 days (30.18 yr)  
   first obs. used      1991-03-14  
   last obs. used      2021-05-18  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .5142  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 23:27:09  

Additional Information
 Earth MOID = 1.20021 au 
 Jupiter MOID = 2.08743 au 
 T_jup = 3.378 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457501.5 (2016-Apr-23.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1673948528468998 3.1361e-08  
q 2.186484407166487 8.2526e-08 au
tp 2457389.272135460729
(2016-Jan-01.77213546)
5.7616e-05 TDB
node 76.110303170243 5.137e-05 deg
peri 26.90201839058819 5.3419e-05 deg
i 4.561500079558678 4.0557e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      556  
   data-arc span      11023 days (30.18 yr)  
   first obs. used      1991-03-14  
   last obs. used      2021-05-18  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .5142  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 23:27:09  

Additional Information
 Jupiter MOID = 2.08743 au 
 T_jup = 3.378 
Orbit Covariance (6×6)
  e q tp node peri i
e 9.835328177819311E-16 -2.57449511827178E-15 -3.46390534090184E-13 3.32802579150593E-15 -9.710605076520543E-14 -7.228461543596246E-17
q -2.57449511827178E-15 6.810560035153107E-15 9.169782742159643E-13 -9.612779649763726E-15 2.579438108289951E-13 2.725105382647819E-16
tp -3.46390534090184E-13 9.169782742159643E-13 3.31964772301873E-9 -2.868769181109489E-12 8.625639535340314E-10 -9.76702215062126E-13
node 3.32802579150593E-15 -9.612779649763726E-15 -2.868769181109489E-12 2.638909618596467E-9 -2.630905212712129E-9 -5.109871887440363E-11
peri -9.710605076520543E-14 2.579438108289951E-13 8.625639535340314E-10 -2.630905212712129E-9 2.853592243946543E-9 5.069097497026425E-11
i -7.228461543596246E-17 2.725105382647819E-16 -9.76702215062126E-13 -5.109871887440363E-11 5.069097497026425E-11 1.644855116371243E-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 16.30   n/a MPO637177  

85841 (1998 YR6)          Discovered 1998-Dec-20 by Kolar, A., Sarounova, L. at Ondrejov
Reference: 20040830/Numbers.arcLast Updated: 2004-09-06

Alternate Designations
 1998 YR6 = 2002 VU55 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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