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72189 (2000 YA121)
Classification: Main-belt Asteroid          SPK-ID: 2072189
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

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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 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09454963463419451 6.0708e-08  
a 2.294118454522933 1.028e-08 au
q 2.077210392840227 1.361e-07 au
i 5.851839974015946 3.9096e-06 deg
node 276.2933873963709 5.6545e-05 deg
peri 252.008401783369 5.9057e-05 deg
M 248.0604472924601 1.9302e-05 deg
tp 2459791.141952432667
(2022-Jul-30.64195243)
6.8639e-05 TDB
period 1269.176974888793
3.47
8.5311e-06
2.336e-08
d
yr
n .2836483856252936 1.9066e-09 deg/d
Q 2.511026516205639 1.1252e-08 au
  Orbit Determination Parameters
   # obs. used (total)      826  
   data-arc span      8795 days (24.08 yr)  
   first obs. used      1996-11-07  
   last obs. used      2020-12-06  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .47462  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Aug-25 17:52:10  

Additional Information
 Earth MOID = 1.09362 au 
 Jupiter MOID = 2.49125 au 
 T_jup = 3.583 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457763.5 (2017-Jan-10.0) TDB
Reference: JPL 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09357697568945468 6.0582e-08  
q 2.080010053237403 1.3564e-07 au
tp 2457250.450144774696
(2015-Aug-15.95014477)
6.7392e-05 TDB
node 276.3236469218817 5.6529e-05 deg
peri 251.6583446791809 5.9105e-05 deg
i 5.85181922598953 3.9072e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      826  
   data-arc span      8795 days (24.08 yr)  
   first obs. used      1996-11-07  
   last obs. used      2020-12-06  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .47462  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Aug-25 17:52:10  

Additional Information
 Jupiter MOID = 2.49125 au 
 T_jup = 3.583 
Orbit Covariance (6×6)
  e q tp node peri i
e 3.670127388284854E-15 -8.200536031439596E-15 -3.933626312018328E-13 -7.290424418444466E-14 -2.884537669396337E-14 -2.459136491851475E-16
q -8.200536031439596E-15 1.839876297084454E-14 8.986071970932243E-13 1.647909239610696E-13 7.502715313099948E-14 7.967104840303404E-16
tp -3.933626312018328E-13 8.986071970932243E-13 4.541646351406345E-9 2.122605639556585E-11 1.20981875932909E-9 -8.202100265318404E-13
node -7.290424418444466E-14 1.647909239610696E-13 2.122605639556585E-11 3.195527828531407E-9 -3.172834825948633E-9 9.979213552627362E-11
peri -2.884537669396337E-14 7.502715313099948E-14 1.20981875932909E-9 -3.172834825948633E-9 3.49339087768988E-9 -9.948966546344871E-11
i -2.459136491851475E-16 7.967104840303404E-16 -8.202100265318404E-13 9.979213552627362E-11 -9.948966546344871E-11 1.526630672233687E-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 15.71   n/a E2021B10  
diameter diameter 2.179 km 0.365 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.195   0.121 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

72189 (2000 YA121)          Discovered 2000-Dec-21 by LINEAR at Socorro
Reference: 20031109/Numbers.arcLast Updated: 2004-04-19
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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