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
IMPORTANT: The SSD Announcement email list is now available. Major changes are coming in the near future, including possible hostname and/or URL changes. To be notified of such changes, subscribe to this email list.

Please visit this page for more details.


JPL Small-Body Database Browser
Search: [ help ]  
37590 (1991 RA14)
Classification: Outer Main-belt Asteroid          SPK-ID: 2037590
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2673486056951362 4.0189e-08  
a 3.942797583782517 3.521e-08 au
q 2.888696147220109 1.61e-07 au
i 7.855997442445823 6.0125e-06 deg
node 338.5899456129671 3.2478e-05 deg
peri 37.16205130511202 3.4186e-05 deg
M 229.5267844731738 1.1111e-05 deg
tp 2460036.891910495740
(2023-Apr-02.39191050)
9.7178e-05 TDB
period 2859.599085313831
7.83
3.8306e-05
1.049e-07
d
yr
n .1258917733779074 1.6864e-09 deg/d
Q 4.996899020344924 4.4624e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1003  
   data-arc span      13073 days (35.79 yr)  
   first obs. used      1983-07-17  
   last obs. used      2019-05-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .48329  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 04:00:58  

Additional Information
 Earth MOID = 1.89473 au 
 Jupiter MOID = .645098 au 
 T_jup = 2.982 
[ 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 13.0   n/a MPO436031  
diameter diameter 15.441 km 0.521 urn:nasa:pds:neowise_diameters_albedos::2.0[hildas] (http://adsabs.harvard.edu/abs/2012ApJ...744..197G)  
rotation period rot_per 4.35 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 lower-limit; Incomplete or inconclusive result.
Published Reference List:
[Erasmus, N.; McNeill, A.; Mommert, N.; Trilling, D.E.; et al. (2019) Ap. J. Suppl. Series 242, A15.]
geometric albedo albedo 0.051   0.009 urn:nasa:pds:neowise_diameters_albedos::2.0[hildas] (http://adsabs.harvard.edu/abs/2012ApJ...744..197G)  

37590 (1991 RA14)          Discovered 1991-Sep-13 by Holt, H. E. at Palomar
Reference: 20020328/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2020-Apr-03 19:49 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin