Skip Page Navigation
NASA JPL Caltech
NASA Logo - Jet Propulsion Laboratory + View the NASA Portal
+ Near-Earth Object (NEO) Program
Search JPL
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 ]  
5660 (1974 MA)
Classification: Apollo [NEO]          SPK-ID: 2005660
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2456800.5 (2014-May-23.0) TDB
Reference: JPL 42 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .7622666076825728 9.1065e-08  
a 1.785688934344908 4.5165e-09 AU
q .4245178879855066 1.6267e-07 AU
i 38.06898946056496 2.9762e-05 deg
node 302.2928250168957 1.2049e-05 deg
peri 126.9209606150989 1.7724e-05 deg
M 228.1904430963025 6.8512e-06 deg
tp 2457119.618173254211
(2015-Apr-07.11817325)
1.7642e-05 JED
period 871.5797630322917
2.39
3.3067e-06
9.053e-09
d
yr
n .41304309171605 1.5671e-09 deg/d
Q 3.14685998070431 7.9593e-09 AU
  Orbit Determination Parameters
   # obs. used (total)      162  
   # delay obs. used      1  
   # Doppler obs. used      1  
   data-arc span      14128 days (38.68 yr)  
   first obs. used      1974-06-26  
   last obs. used      2013-03-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .7625  
   data source      ORB  
   producer      Otto Matic  
   solution date      2013-Oct-22 17:41:51  

Additional Information
 Earth MOID = .160574 AU 
 T_jup = 3.511 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.4 mag n/a MPO256905  
rotation period rot_per 17.5 h n/a Asteroid Lightcurve DataBase (Rev. 2013-Sep-12) Incomplete or inconclusive result.
Published Reference List:
[Pravec, P.; Wolf, M.; Sarounova, L. (2005) http://www.asu.cas.cz/~ppravec/neo.htm]
SMASSII spectral type spec_B Q   n/a EAR-A-5-DDR-TAXONOMY-V4.0 based on a high-resolution spectrum by Xu et al. (1995) or Bus and Binzel (2002)

5660 (1974 MA)          Discovered 1974-Jun-26 by Kowal, C. T. at Palomar (675)
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 1974 MA = 1993 OL 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2014-Apr-18 03:04 UT
(server date/time)  
NASA Home Page
Site Manager:   Donald K. Yeomans
Webmaster  Alan B. Chamberlin