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2838 Takase (1971 UM1)
Classification: Main-belt Asteroid          SPK-ID: 2002838
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 29 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1899192313719017 3.1905e-08  
a 2.340804954614494 6.7275e-09 au
q 1.896241076842571 7.4643e-08 au
i 2.130519579625876 3.3448e-06 deg
node 80.34955688510944 8.6229e-05 deg
peri 333.3039059138882 8.657e-05 deg
M 192.611896328215 8.4071e-06 deg
tp 2459608.730728540651
(2022-Jan-29.23072854)		 3.187e-05 TDB
period 1308.116033765325
3.58		 5.6393e-06
1.544e-08		 d
yr
n .2752049441392166 1.1864e-09 deg/d
Q 2.785368832386419 8.0052e-09 au
   Orbit Determination Parameters
   # obs. used (total)      2380  
   data-arc span      24443 days (66.92 yr)  
   first obs. used      1953-10-14  
   last obs. used      2020-09-15  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .49334  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 04:05:35  

Additional Information
 Earth MOID = .907854 au 
 Jupiter MOID = 2.57126 au 
 T_jup = 3.539 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456924.5 (2014-Sep-24.0) TDB
Reference: JPL 29 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1890314831507664 3.1858e-08  
q 1.898442577225089 7.4437e-08 au
tp 2456993.112456349094
(2014-Dec-01.61245635)		 2.7888e-05 TDB
node 80.38404337937986 8.6201e-05 deg
peri 333.454829768603 8.6547e-05 deg
i 2.130673618700194 3.3443e-06 deg
   Orbit Determination Parameters
   # obs. used (total)      2380  
   data-arc span      24443 days (66.92 yr)  
   first obs. used      1953-10-14  
   last obs. used      2020-09-15  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .49334  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 04:05:35  

Additional Information
 Jupiter MOID = 2.57126 au 
 T_jup = 3.539 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.014904793314653E-15 -2.364919579104176E-15 -7.214770185270833E-14 -3.636396894699996E-15 -2.971678824120663E-14 -2.09688195276316E-16
q -2.364919579104176E-15 5.540927966558058E-15 1.969409090257077E-13 8.486068600202175E-15 7.575564796537783E-14 4.89315501277341E-16
tp -7.214770185270833E-14 1.969409090257077E-13 7.777339601944256E-10 -3.428984690173463E-13 2.252538932210865E-10 -1.034456706188512E-13
node -3.636396894699996E-15 8.486068600202175E-15 -3.428984690173463E-13 7.4305599831987E-9 -7.425038939115847E-9 -5.438586505329296E-11
peri -2.971678824120663E-14 7.575564796537783E-14 2.252538932210865E-10 -7.425038939115847E-9 7.490366660673488E-9 5.432603689718267E-11
i -2.09688195276316E-16 4.89315501277341E-16 -1.034456706188512E-13 -5.438586505329296E-11 5.432603689718267E-11 1.118460714126785E-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 14.3   n/a MPO473804  
diameter diameter 3.850 km 0.214 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.299   0.067 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

2838 Takase (1971 UM1)          Discovered 1971-Oct-26 by Kohoutek, L. at Bergedorf
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 1971 UM1 = 1953 TQ2 = 1978 RT1 
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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