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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 ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 39 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1699448359876364 3.4499e-08  
a 2.531637904181073 9.0826e-09 au
q 2.101399115774937 8.9144e-08 au
i 17.02404140623737 3.547e-06 deg
node 150.4673622305442 1.2353e-05 deg
peri 189.4407726200817 1.6311e-05 deg
M 309.5731014123068 1.2205e-05 deg
tp 2459406.591731821682
(2021-Jul-11.09173182)
5.0139e-05 TDB
period 1471.298563539111
4.03
7.9177e-06
2.168e-08
d
yr
n .2446818130060862 1.3167e-09 deg/d
Q 2.96187669258721 1.0626e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2916  
   data-arc span      30757 days (84.21 yr)  
   first obs. used      1936-07-16  
   last obs. used      2020-09-30  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .38043  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-12 14:28:46  

Additional Information
 Earth MOID = 1.09155 au 
 Jupiter MOID = 2.43453 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 12.14   n/a E2021B10  
rotation period rot_per 4.3832 h n/a LCDB (Rev. 2020-October); 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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