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19621 (1999 RE1)
Classification: Main-belt Asteroid          SPK-ID: 2019621
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 32 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07819802687698574 2.2293e-08  
a 2.603940806488662 1.209e-08 au
q 2.400317773316782 5.7361e-08 au
i 14.2073698325787 4.7701e-07 deg
node 304.573386424991 4.68e-06 deg
peri 287.766168587976 1.0061e-05 deg
M 142.7330579327825 1.0969e-05 deg
tp 2458591.990787447408
(2019-Apr-18.49078745)
4.4571e-05 TDB
period 1534.776313852233
4.20
1.0689e-05
2.926e-08
d
yr
n .2345618685607761 1.6336e-09 deg/d
Q 2.807563839660542 1.3036e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2043  
   data-arc span      11157 days (30.55 yr)  
   first obs. used      1990-06-28  
   last obs. used      2021-01-13  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .44116  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 02:59:52  

Additional Information
 Earth MOID = 1.42783 au 
 Jupiter MOID = 2.38823 au 
 T_jup = 3.366 
[ 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 13.82   n/a E2021B10  
diameter diameter 5.207 km 0.240 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 6.04819 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 0.259   0.041 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

19621 (1999 RE1)          Discovered 1999-Sep-04 by Kagawa, T. at Gekko
Reference: 20001211/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1999 RE1 = 1990 MZ1 = 1993 BV14 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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