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 ]  
27995 (1997 WL2)
Classification: Mars-crossing Asteroid          SPK-ID: 2027995
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 27 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2722459358790155 5.4771e-08  
a 2.122670369589071 9.9849e-09 au
q 1.544781988257639 1.2084e-07 au
i 3.462329249969997 3.842e-06 deg
node 71.29178147589717 6.7098e-05 deg
peri 232.2748966166946 6.7625e-05 deg
M 77.04242554647794 5.4321e-06 deg
tp 2458358.759336444289
(2018-Aug-28.25933644)		 1.6906e-05 TDB
period 1129.593704543412
3.09		 7.9703e-06
2.182e-08		 d
yr
n .318698660015562 2.2487e-09 deg/d
Q 2.700558750920504 1.2703e-08 au
   Orbit Determination Parameters
   # obs. used (total)      1338  
   data-arc span      16135 days (44.18 yr)  
   first obs. used      1975-10-03  
   last obs. used      2019-12-06  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54053  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-14 01:43:26  

Additional Information
 Earth MOID = .53199 au 
 Jupiter MOID = 2.55037 au 
 T_jup = 3.678 
[ 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 15.1   n/a MPO439294  
diameter diameter 2.056 km 0.369 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2016AJ....152...63N)  
geometric albedo albedo 0.381   0.158 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2016AJ....152...63N)  

27995 (1997 WL2)          Discovered 1997-Nov-23 by Kobayashi, T. at Oizumi
Reference: 20010902/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1997 WL2 = 1975 TN3 = 2000 VL32 
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2020-Jan-25 21:11 UT
(server date/time)   		NASA Home Page
Site Manager:   Ryan S. Park
Webmaster:   Alan B. Chamberlin