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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 2459000.5 (2020-May-31.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05146993366048354 5.2437e-08  
a 2.931534839417854 1.8408e-08 au
q 2.780648935709621 1.5275e-07 au
i 1.853178590069855 8.3884e-06 deg
node 17.05306855531502 0.00013474 deg
peri 38.05146313801212 0.0001545 deg
M 209.452580576668 7.6332e-05 deg
tp 2459767.175934885814
(2022-Jul-06.67593489)
0.00039104 TDB
period 1833.331568326555
5.02
1.7268e-05
4.728e-08
d
yr
n .1963638254091725 1.8495e-09 deg/d
Q 3.082420743126087 1.9355e-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 = 1.79213 au 
 Jupiter MOID = 2.10387 au 
 T_jup = 3.273 
[ 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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