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27085 (1998 UA1)
Classification: Main-belt Asteroid          SPK-ID: 2027085
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1733617595490073 3.3286e-08  
a 2.309180889170617 5.7342e-09 au
q 1.908857227107057 7.776e-08 au
i 4.861502345953324 4.1296e-06 deg
node 49.57673531512211 4.3269e-05 deg
peri 15.20027938808666 4.5415e-05 deg
M 90.38624416914183 1.2568e-05 deg
tp 2458878.700623355528
(2020-Jan-30.20062336)
4.4633e-05 TDB
period 1281.696973437921
3.51
4.7741e-06
1.307e-08
d
yr
n .2808776235418306 1.0462e-09 deg/d
Q 2.709504551234176 6.7283e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1426  
   data-arc span      14799 days (40.52 yr)  
   first obs. used      1980-07-12  
   last obs. used      2021-01-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52029  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 03:22:59  

Additional Information
 Earth MOID = .922067 au 
 Jupiter MOID = 2.60071 au 
 T_jup = 3.561 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456832.5 (2014-Jun-24.0) TDB
Reference: JPL 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1727591477171105 3.3289e-08  
q 1.910166735274619 7.7694e-08 au
tp 2456313.151270823433
(2013-Jan-20.65127082)
4.5172e-05 TDB
node 49.60930027609702 4.3252e-05 deg
peri 14.79431785503628 4.5432e-05 deg
i 4.863452789875733 4.1311e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1426  
   data-arc span      14799 days (40.52 yr)  
   first obs. used      1980-07-12  
   last obs. used      2021-01-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52029  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 03:22:59  

Additional Information
 Jupiter MOID = 2.60071 au 
 T_jup = 3.561 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.108151635381494E-15 -2.581719589059391E-15 -5.174425910277756E-13 -7.92607177948372E-15 -1.462904623134152E-13 -2.187461129331449E-16
q -2.581719589059391E-15 6.036341694506408E-15 1.171812522896619E-12 1.815471197141109E-14 3.334935345259702E-13 6.152669612010095E-16
tp -5.174425910277756E-13 1.171812522896619E-12 2.040474446404624E-9 1.03151556747569E-11 6.385238064628341E-10 -1.097561464319565E-12
node -7.92607177948372E-15 1.815471197141109E-14 1.03151556747569E-11 1.870712113407232E-9 -1.860264835837042E-9 -5.442787119832892E-11
peri -1.462904623134152E-13 3.334935345259702E-13 6.385238064628341E-10 -1.860264835837042E-9 2.064066946129395E-9 5.389562335817687E-11
i -2.187461129331449E-16 6.152669612010095E-16 -1.097561464319565E-12 -5.442787119832892E-11 5.389562335817687E-11 1.706604739485609E-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 15.10   n/a E2021B10  
diameter diameter 3.551 km 0.224 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.128   0.022 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

27085 (1998 UA1)          Discovered 1998-Oct-19 by Stafford, T. at Zeno
Reference: 20010804/Numbers.arcLast Updated: 2004-04-19
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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