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 ]  
39739 (1997 AQ2)
Classification: Main-belt Asteroid          SPK-ID: 2039739
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1360843469142264 4.99e-08  
a 2.667063386736383 1.3465e-08 au
q 2.304117807573518 1.3477e-07 au
i 9.157397418044921 5.8607e-06 deg
node 317.5163628336689 2.964e-05 deg
peri 93.6861640315319 3.9933e-05 deg
M 185.2894474760737 2.4702e-05 deg
tp 2459772.584918900544
(2022-Jul-12.08491890)
0.00011075 TDB
period 1590.920335313639
4.36
1.2048e-05
3.299e-08
d
yr
n .226284114929632 1.7136e-09 deg/d
Q 3.030008965899249 1.5297e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1289  
   data-arc span      8421 days (23.06 yr)  
   first obs. used      1997-01-03  
   last obs. used      2020-01-24  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .49863  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 05:34:42  

Additional Information
 Earth MOID = 1.33674 au 
 Jupiter MOID = 2.35532 au 
 T_jup = 3.351 
[ 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 14.2   n/a MPO474254  
diameter diameter 4.438 km 0.088 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.271   0.033 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

39739 (1997 AQ2)          Discovered 1997-Jan-03 by Kobayashi, T. at Oizumi
Reference: 20020526/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1997 AQ2 = 2000 SF288 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2020-Mar-30 14:24 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin