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JPL Small-Body Database Browser
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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 26 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2722459295451732 5.6211e-08  
a 2.122670371540869 1.071e-08 au
q 1.544782003122727 1.2442e-07 au
i 3.462329254028208 3.846e-06 deg
node 71.29178402681893 6.8136e-05 deg
peri 232.2748920275359 6.8771e-05 deg
M 77.04242610557482 5.538e-06 deg
tp 2458358.759334356556
(2018-Aug-28.25933436)		 1.7383e-05 TDB
period 1129.593706101406
3.09		 8.5492e-06
2.341e-08		 d
yr
n .3186986595759963 2.412e-09 deg/d
Q 2.700558739959011 1.3626e-08 au
   Orbit Determination Parameters
   # obs. used (total)      1320  
   data-arc span      16092 days (44.06 yr)  
   first obs. used      1975-10-03  
   last obs. used      2019-10-24  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54314  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-07 05:03:17  

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 ]
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