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11825 (1982 UW1)
Classification: Main-belt Asteroid          SPK-ID: 2011825
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 29 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1761971203899964 3.6964e-08  
a 3.172394978519113 1.6852e-08 au
q 2.613428118564361 1.2116e-07 au
i 9.948880575459961 5.0262e-06 deg
node 197.6388562699571 2.0451e-05 deg
peri 140.54811646889 2.4748e-05 deg
M 267.4277658084351 1.5621e-05 deg
tp 2459531.210343573053
(2021-Nov-12.71034357)		 9.1647e-05 TDB
period 2063.855597251081
5.65		 1.6445e-05
4.502e-08		 d
yr
n .1744308082791723 1.3899e-09 deg/d
Q 3.731361838473865 1.9821e-08 au
   Orbit Determination Parameters
   # obs. used (total)      2197  
   data-arc span      13862 days (37.95 yr)  
   first obs. used      1982-10-16  
   last obs. used      2020-09-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .45507  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 02:57:02  

Additional Information
 Earth MOID = 1.6145 au 
 Jupiter MOID = 1.77915 au 
 T_jup = 3.154 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457018.5 (2014-Dec-27.0) TDB
Reference: JPL 29 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1752546087850342 3.7055e-08  
q 2.617610107852316 1.2142e-07 au
tp 2457469.016486881206
(2016-Mar-21.51648688)		 8.4846e-05 TDB
node 197.6611589333327 2.0449e-05 deg
peri 140.9629505944638 2.4776e-05 deg
i 9.947155439064746 5.0257e-06 deg
   Orbit Determination Parameters
   # obs. used (total)      2197  
   data-arc span      13862 days (37.95 yr)  
   first obs. used      1982-10-16  
   last obs. used      2020-09-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .45507  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 02:57:02  

Additional Information
 Jupiter MOID = 1.77915 au 
 T_jup = 3.154 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.373042241183328E-15 -4.470786201565337E-15 6.518624366128446E-13 7.758228534574895E-16 1.464135573080921E-13 9.921717672029108E-16
q -4.470786201565337E-15 1.474284927567623E-14 -1.65287085393157E-12 -3.607711359864941E-15 -4.075413349743714E-13 -2.561209287318763E-15
tp 6.518624366128446E-13 -1.65287085393157E-12 7.198882731505556E-9 -1.026399267892992E-11 1.196258436622317E-9 4.359690132589231E-12
node 7.758228534574895E-16 -3.607711359864941E-15 -1.026399267892992E-11 4.181748853667364E-10 -4.132533623128504E-10 1.994021338768923E-11
peri 1.464135573080921E-13 -4.075413349743714E-13 1.196258436622317E-9 -4.132533623128504E-10 6.138469955009884E-10 -1.891927231354134E-11
i 9.921717672029108E-16 -2.561209287318763E-15 4.359690132589231E-12 1.994021338768923E-11 -1.891927231354134E-11 2.525733343176474E-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 12.3   n/a MPO473926  
diameter diameter 17.629 km 0.187 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
rotation period rot_per 16.6668 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Pal, A.; Szakats, R.; Kiss, C.; Bodi, A.; et al. (2019) Ap. J. Supl. Ser. 247, id.26.]
geometric albedo albedo 0.082   0.009 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  

11825 (1982 UW1)          Discovered 1982-Oct-16 by Mrkos, A. at Klet
Reference: 19991026/Numbers.arcLast Updated: 2004-04-19

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Alternate Designations
 1982 UW1 = 1976 SQ8 = 1988 VW3 = 1998 MW11 
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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