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
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 ]  
27965 (1997 SH25)
Classification: Main-belt Asteroid          SPK-ID: 2027965
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ hide orbit diagram ]

For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.

[ revert to old Java-based viewer ]

Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1587655615957571 3.6158e-08  
a 2.414509811054573 8.4435e-09 au
q 2.031168804924028 8.9221e-08 au
i 2.519719056141911 3.7002e-06 deg
node 85.378208009689 9.6358e-05 deg
peri 344.9079307196165 9.7262e-05 deg
M 326.7991597556744 1.4632e-05 deg
tp 2459126.882942537371
5.6053e-05 TDB
period 1370.382766780418
n .2627003263079448 1.378e-09 deg/d
Q 2.797850817185117 9.784e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1366  
   data-arc span      14490 days (39.67 yr)  
   first obs. used      1980-02-18  
   last obs. used      2019-10-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52756  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-07 05:03:17  

Additional Information
 Earth MOID = 1.04573 au 
 Jupiter MOID = 2.47351 au 
 T_jup = 3.499 
[ 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 14.7   n/a MPO435958  
diameter diameter 2.614 km 0.706 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (  
rotation period rot_per 5.629 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.]
geometric albedo albedo 0.341   0.230 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (  

27965 (1997 SH25)          Discovered 1997-Sep-29 by Shimizu, Y., Urata, T. at Nachi-Katsuura
Reference: 20010902/Numbers.arcLast Updated: 2004-04-19

[ hide close-approach data ]
Close-Approach Data   ...sorted by Date/Time (TDB)
Date/Time (TDB) Time Uncertainty
Body Nominal Distance (au) Minimum Distance (au) Maximum Distance (au) V-relative (km/s) V-infinity (km/s) JD (TDB) Time Uncertainty (minutes) Semi-major axis (km) Semi-minor axis (km) range-LOV angle (deg) N-sigma BP Orbit Ref. Reference Modified
2057-Sep-17 19:27 < 00:01 Juno 0.0310703276998033 0.0310691571653875 0.0310714993694294 4.95689637544254 4.95689629644923 2472624.310222527 0.631522506917161 335.272521367489 25.8625803418539 80.9945491025002 177402.356478486 T 23 CATAB v2.0f-lin.ifort 2019-Nov-07 05:03:25 2019-Nov-07 05:03

Alternate Designations
 1997 SH25 = 1980 DE = 1980 DZ3 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
FirstGov 2020-Mar-28 15:57 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin