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 ]  
37776 (1997 GW28)
Classification: Main-belt Asteroid          SPK-ID: 2037776
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 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1290946505618882 3.9835e-08  
a 2.387417460772507 1.2979e-08 au
q 2.07921463792873 9.4989e-08 au
i 6.503176810075071 5.8156e-06 deg
node 188.932560934814 3.9096e-05 deg
peri 123.1998441052594 4.7245e-05 deg
M 348.9307069481828 3.0264e-05 deg
tp 2459041.929372945722
(2020-Jul-11.42937295)
0.00011344 TDB
period 1347.382727211411
3.69
1.0988e-05
3.008e-08
d
yr
n .2671846630727323 2.1788e-09 deg/d
Q 2.695620283616284 1.4655e-08 au
  Orbit Determination Parameters
   # obs. used (total)      746  
   data-arc span      10590 days (28.99 yr)  
   first obs. used      1990-05-30  
   last obs. used      2019-05-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .60401  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 04:37:58  

Additional Information
 Earth MOID = 1.07401 au 
 Jupiter MOID = 2.5681 au 
 T_jup = 3.514 
[ 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 15.8   n/a MPO474233  
rotation period rot_per 42.409 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]

37776 (1997 GW28)          Discovered 1997-Apr-08 by Spacewatch at Kitt Peak
Reference: 20020328/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1997 GW28 = 1998 RF32 
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-04 07:07 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin