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21090 (1992 DZ6)
Classification: Main-belt Asteroid          SPK-ID: 2021090
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 28 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1391524826273037 3.4453e-08  
a 2.694500679094396 1.2399e-08 au
q 2.319554220157455 9.1251e-08 au
i 11.76004491959931 4.4494e-06 deg
node 351.307905577723 1.6705e-05 deg
peri 251.2186399736606 2.2699e-05 deg
M 117.9689345969474 1.5207e-05 deg
tp 2458671.103544264602
(2019-Jul-06.60354426)
6.8041e-05 TDB
period 1615.533146212503
4.42
1.1151e-05
3.053e-08
d
yr
n .2228366535493209 1.5381e-09 deg/d
Q 3.069447138031336 1.4124e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1915  
   data-arc span      10519 days (28.80 yr)  
   first obs. used      1992-02-29  
   last obs. used      2020-12-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .41363  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 02:50:51  

Additional Information
 Earth MOID = 1.33868 au 
 Jupiter MOID = 2.05156 au 
 T_jup = 3.326 
[ 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 14.42   n/a E2021B10  
diameter diameter 3.977 km 0.135 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 24.1511 h n/a LCDB (Rev. 2020-October); 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:
[Pal, A.; Szakats, R.; Kiss, C.; Bodi, A.; et al. (2019) Ap. J. Supl. Ser. 247, id.26.]
geometric albedo albedo 0.177   0.018 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

21090 (1992 DZ6)          Discovered 1992-Feb-29 by UESAC at La Silla
Reference: 20010208/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1992 DZ6 = 1998 SS86 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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