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2927 Alamosa (1981 TM)
Classification: Main-belt Asteroid          SPK-ID: 2002927
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.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 37 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .169850777656157 3.5211e-08  
a 2.530909440483666 9.2301e-09 au
q 2.101032503840206 9.0947e-08 au
i 17.0235934199324 3.5985e-06 deg
node 150.473505932087 1.2663e-05 deg
peri 189.5259021417956 1.6663e-05 deg
M 260.5268658555044 1.2265e-05 deg
tp 2459406.865319148937
(2021-Jul-11.36531915)
5.0574e-05 TDB
period 1470.663573152455
4.03
8.0452e-06
2.203e-08
d
yr
n .2447874596011912 1.3391e-09 deg/d
Q 2.960786377127127 1.0798e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2846  
   data-arc span      30699 days (84.05 yr)  
   first obs. used      1936-07-16  
   last obs. used      2020-08-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .38257  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Aug-24 22:58:10  

Additional Information
 Earth MOID = 1.0931 au 
 Jupiter MOID = 2.4354 au 
 T_jup = 3.370 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 12.1   n/a MPO384777  
rotation period rot_per 4.3832 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Published Reference List:
[Odden, C.; French, J.; Briggs, J. (2012) Minor Planet Bull. 39, 236-238.]

2927 Alamosa (1981 TM)          Discovered 1981-Oct-05 by Thomas, N. G. at Flagstaff (AM)
Discovered at the Anderson Mesa station, which is operated by the Lowell Observatory.
Reference: DISCOVERY.DBLast Updated: 2003-08-29

Alternate Designations
 1981 TM = 1936 OA = 1975 EN2 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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