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JPL Small-Body Database Browser
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27999 (1997 WV21)
Classification: Main-belt Asteroid          SPK-ID: 2027999
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05254292544505246 5.2143e-08  
a 2.928608655660264 1.8711e-08 au
q 2.774730989408171 1.5116e-07 au
i 1.85435716184706 8.3925e-06 deg
node 17.08614051763562 0.00013464 deg
peri 38.15942716033587 0.00015367 deg
M 130.6773642951045 7.459e-05 deg
tp 2457936.010221353767
(2017-Jul-01.51022135)
0.0003777 TDB
period 1830.587275791921
5.01
1.7543e-05
4.803e-08
d
yr
n .1966582007647039 1.8847e-09 deg/d
Q 3.082486321912356 1.9694e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1255  
   data-arc span      15564 days (42.61 yr)  
   first obs. used      1976-09-29  
   last obs. used      2019-05-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .49704  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 03:29:20  

Additional Information
 Earth MOID = 1.78581 au 
 Jupiter MOID = 2.10867 au 
 T_jup = 3.274 
[ 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 13.7   n/a MPO395275  

27999 (1997 WV21)          Discovered 1997-Nov-30 by Kobayashi, T. at Oizumi
Reference: 20010902/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1997 WV21 = 1976 SJ11 = 1991 RX37 = 1996 SW3 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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