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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 ]

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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 38 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09017586351040652 1.2766e-08  
a 1.866729696602044 3.6803e-09 au
q 1.698395734270435 2.3904e-08 au
i 24.3304388988333 5.6041e-07 deg
node 175.5150781544817 1.4564e-06 deg
peri 278.1206209582992 8.0718e-06 deg
M 188.799255068477 7.7752e-06 deg
tp 2459839.520406063847
(2022-Sep-17.02040606)
2.0765e-05 TDB
period 931.5809124941401
2.55
2.7549e-06
7.543e-09
d
yr
n .3864398627878333 1.1428e-09 deg/d
Q 2.035063658933652 4.0121e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2277  
   data-arc span      18041 days (49.39 yr)  
   first obs. used      1972-03-16  
   last obs. used      2021-08-07  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .37287  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Aug-25 08:31:08  

Additional Information
 Earth MOID = .808552 au 
 Jupiter MOID = 3.083 au 
 T_jup = 3.875 
[ 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 13.71   n/a E2021B10  
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. 2020-October); 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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