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2272 Montezuma (1972 FA)
Classification: Inner Main-belt Asteroid          SPK-ID: 2002272
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ 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 .09031337313595118 3.2601e-08  
a 1.866769907470538 4.1632e-09 au
q 1.698175620258186 6.0851e-08 au
i 24.32896426609166 4.5413e-06 deg
node 175.5181837967914 9.1373e-06 deg
peri 278.2172716481519 3.0368e-05 deg
M 35.65109932132479 2.7446e-05 deg
tp 2458908.241786779894
(2020-Feb-28.74178678)
7.1112e-05 TDB
period 931.6110131664759
2.55
3.1165e-06
8.533e-09
d
yr
n .3864273767829204 1.2927e-09 deg/d
Q 2.03536419468289 4.5392e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2042  
   data-arc span      17568 days (48.10 yr)  
   first obs. used      1972-03-16  
   last obs. used      2020-04-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .38241  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 01:37:34  

Additional Information
 Earth MOID = .807485 au 
 Jupiter MOID = 3.0842 au 
 T_jup = 3.874 
[ 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 13.7   n/a MPO502175  
diameter diameter 5.328 km 0.008 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
rotation period rot_per 8.183 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Published Reference List:
[Warner, B.D (2012) Minor Planet Bull. 39, 16-21.]
[Stephens, R.D.; Coley, D.; Warner, B.D. (2014) Minor Planet Bull. 41, 8-13.]
[Stephens, R.D. (2017) Minor Planet Bull. 44, 49-52.]
[Warner, B.D. (2018) Minor Planet Bull. 45, 256-259.]
geometric albedo albedo 0.165   0.023 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
B-V BV 0.880   0.029 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=1; phase=22.55 deg.
U-B UB 0.490   0.042 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=1; phase=22.55 deg.
Tholen spectral type spec_T S   n/a EAR-A-5-DDR-TAXONOMY-V4.0 used 7 color indices

2272 Montezuma (1972 FA)          Discovered 1972-Mar-16 by Gehrels, T. at Palomar
Reference: DISCOVERY.DBLast Updated: 2003-08-29

Alternate Designations
 1972 FA = 1978 RY16 = 1978 SY3 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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