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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 36 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1698507771426503 3.5553e-08  
a 2.53090944035714 9.2797e-09 au
q 2.10103250503481 9.1693e-08 au
i 17.02359327329608 3.665e-06 deg
node 150.4735058204279 1.2671e-05 deg
peri 189.5259022813378 1.667e-05 deg
M 260.5268658991531 1.2283e-05 deg
tp 2459406.865318940152
(2021-Jul-11.36531894)
5.0661e-05 TDB
period 1470.663573042172
4.03
8.0884e-06
2.214e-08
d
yr
n .2447874596195474 1.3463e-09 deg/d
Q 2.960786375679471 1.0856e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2748  
   data-arc span      30652 days (83.92 yr)  
   first obs. used      1936-07-16  
   last obs. used      2020-06-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .38599  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jun-23 15:51:23  

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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