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21136 (1993 FH19)
Classification: Main-belt Asteroid          SPK-ID: 2021136
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 27 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09616960488707058 3.6354e-08  
a 2.76012654876286 1.2426e-08 au
q 2.494686269130022 9.9976e-08 au
i 6.793192380054832 4.182e-06 deg
node 97.51869409607411 3.7419e-05 deg
peri 349.5877504959309 4.6604e-05 deg
M 107.4768859491117 2.6013e-05 deg
tp 2458700.460292569070
(2019-Aug-04.96029257)
0.00012083 TDB
period 1674.911708554418
4.59
1.131e-05
3.097e-08
d
yr
n .2149367027296673 1.4514e-09 deg/d
Q 3.025566828395698 1.3621e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1433  
   data-arc span      10669 days (29.21 yr)  
   first obs. used      1991-12-29  
   last obs. used      2021-03-15  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .50677  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 03:40:20  

Additional Information
 Earth MOID = 1.51113 au 
 Jupiter MOID = 2.14695 au 
 T_jup = 3.325 
[ 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 14.31   n/a E2021B10  
diameter diameter 3.689 km 0.223 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 27.2741 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 0.247   0.040 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

21136 (1993 FH19)          Discovered 1993-Mar-17 by UESAC at La Silla
Reference: 20010208/Numbers.arcLast Updated: 2004-04-19

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Alternate Designations
 1993 FH19 = 1998 KP23 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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