Skip Page Navigation
NASA JPL Caltech
NASA Logo - Jet Propulsion Laboratory + View the NASA Portal
+ Center for Near-Earth Object Studies
JPL Home Earth Solar System Stars & Galaxies Technology
JPL Solar System Dynamics
BODIES ORBITS EPHEMERIDES TOOLS PHYSICAL DATA DISCOVERY FAQ SITE MAP
JPL Small-Body Database Browser
Search: [ help ]  
1465 Autonoma (1938 FA)
Classification: Main-belt Asteroid          SPK-ID: 2001465
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 45 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1786032073888404 1.5677e-08  
a 3.027306920213566 1.2794e-08 au
q 2.48662019451299 5.2557e-08 au
i 9.921011486652157 3.3278e-07 deg
node 166.9355001015445 3.81e-06 deg
peri 50.61608565291244 7.8823e-06 deg
M 252.4727804750654 1.0393e-05 deg
tp 2459971.144193081970
(2023-Jan-26.64419308)
5.7922e-05 TDB
period 1923.902714340506
5.27
1.2196e-05
3.339e-08
d
yr
n .1871196486790156 1.1862e-09 deg/d
Q 3.567993645914141 1.5079e-08 au
  Orbit Determination Parameters
   # obs. used (total)      3054  
   data-arc span      30366 days (83.14 yr)  
   first obs. used      1938-02-22  
   last obs. used      2021-04-13  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .42836  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 12:25:22  

Additional Information
 Earth MOID = 1.49522 au 
 Jupiter MOID = 1.4511 au 
 T_jup = 3.197 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 11.71   n/a E2021B10  
diameter diameter 18.111 km 0.276 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 4.882 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Brinsfield, J.W. (2008) Minor Planet Bull. 35, 23-24.]
[Fauvaud, S.; Fauvaud, M. (2013) Minor Planet Bull. 40, 224-229.]
[Ditteon, R.; Adam, A.; Doyel, M.; Gibson, J.; et al. (2018) Minor Planet Bull. 45, 13-16.]
geometric albedo albedo 0.123   0.017 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

1465 Autonoma (1938 FA)          Discovered 1938-Mar-20 by Wachmann, A. at Bergedorf
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 1938 FA = 1938 EQ = 1950 QJ = 1975 EW1 = 1975 LD 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2021-Jul-29 10:26 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin