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 ]  
8474 Rettig (1985 GA1)
Classification: Main-belt Asteroid          SPK-ID: 2008474
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 40 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1715271951378495 1.5667e-08  
a 2.224871155220316 4.9943e-09 au
q 1.843245246422269 3.5188e-08 au
i 5.911629063761477 3.4518e-07 deg
node 132.6243799877708 6.6165e-06 deg
peri 141.8603217065031 9.174e-06 deg
M 221.5161986794549 4.925e-06 deg
tp 2459666.785811570485
(2022-Mar-28.28581157)
1.7351e-05 TDB
period 1212.148212026809
3.32
4.0815e-06
1.117e-08
d
yr
n .296993384495491 1e-09 deg/d
Q 2.606497064018364 5.851e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2761  
   data-arc span      24083 days (65.94 yr)  
   first obs. used      1955-04-14  
   last obs. used      2021-03-21  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .44357  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-03 23:57:06  

Additional Information
 Earth MOID = .829298 au 
 Jupiter MOID = 2.51497 au 
 T_jup = 3.620 
[ 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 13.79   n/a MPCxxxxx  
diameter diameter 4.197 km 0.593 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2016AJ....152...63N)  
rotation period rot_per 30.54 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Published Reference List:
[Chiorny, V.; Benishek, V.; Pravec, P.; Kusnirak, P.; et al. (2015) CBET 4122.]
[Oey, J.; Williams, H.; Groom, R.; Pray, D.; Benishek, V. (2017) Minor Planet Bull. 44, 193-199.]
[Erasmus, N.; Navarro-Meza, S.; McNeill, A.; Trilling, D.E.; et al. (2020) Ap. J. Suppl. Ser. 247, A13.]
geometric albedo albedo 0.354   0.121 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2016AJ....152...63N)  

8474 Rettig           Discovered 1985 Apr. 15 by E. Bowell at the Anderson Mesa Station of the Lowell Observatory.
Terrence W. Rettig (b. 1946) is a planetary astronomer and educator at the University of Notre Dame who has contributed to the understanding of comets and the evolution of planet-forming regions around young stars. He has also served as the National Science Foundation Special Progams Director for Physics.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20000124/MPCPages.arcLast Updated: 2013-03-29

Alternate Designations
 1985 GA1 = 1992 NQ 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2021-May-16 22:19 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin