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 ]  
7977 (1977 QQ5)
Classification: Amor [NEO]          SPK-ID: 2007977
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 83 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .465224535114686 6.9706e-08  
a 2.226543358262775 1.1419e-08 AU
q 1.190700759502284 1.5576e-07 AU
i 25.16830592867235 1.0123e-05 deg
node 134.2289033030723 2.0317e-05 deg
peri 248.0963169783223 2.2884e-05 deg
M 5.583060394161647 1.7294e-05 deg
tp 2456781.680200729370
(2014-May-04.18020073)
5.8182e-05 JED
period 1213.515036396863
3.32
9.3356e-06
2.556e-08
d
yr
n .2966588704734163 2.2822e-09 deg/d
Q 3.262385957023267 1.6732e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      417  
   data-arc span      21348 days (58.45 yr)  
   first obs. used      1955-03-23  
   last obs. used      2013-09-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .62026  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Jun-09 19:08:07  

Additional Information
 Earth MOID = .357917 AU 
 T_jup = 3.385 
[ 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 15.2 mag n/a MPO266000  
rotation period rot_per 7.457 h n/a Asteroid Lightcurve DataBase (Rev. 2013-Sep-12) Incomplete or inconclusive result.
Published Reference List:
[Pravec, P.; Wolf, M.; Sarounova, L. (1998) http://www.asu.cas.cz/~ppravec/neo.htm]
SMASSII spectral type spec_B S   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)

7977 (1977 QQ5)          Discovered 1977-Aug-21 by McNaught, R. H. at Siding Spring (413)
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2014-Jul-30 02:58 UT
(server date/time)  
NASA Home Page
Site Manager:   Donald K. Yeomans
Webmaster  Alan B. Chamberlin