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27564 Astreichelt (2000 KE77)
Classification: Main-belt Asteroid          SPK-ID: 2027564
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09664806143137356 3.9493e-08  
a 2.754749481156133 1.3375e-08 au
q 2.48850828407331 1.0882e-07 au
i 8.520566017652641 4.305e-06 deg
node 210.48133479 2.3477e-05 deg
peri 309.8560101644509 3.0194e-05 deg
M 250.8377935743895 2.1118e-05 deg
tp 2459706.897317213280
(2022-May-07.39731721)
9.9782e-05 TDB
period 1670.01969056949
4.57
1.2163e-05
3.33e-08
d
yr
n .2155663205846617 1.57e-09 deg/d
Q 3.020990678238955 1.4668e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1574  
   data-arc span      12676 days (34.70 yr)  
   first obs. used      1986-04-29  
   last obs. used      2021-01-11  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .53065  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 05:41:17  

Additional Information
 Earth MOID = 1.50532 au 
 Jupiter MOID = 1.99163 au 
 T_jup = 3.321 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457370.5 (2015-Dec-14.0) TDB
Reference: JPL 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09472966115535693 3.9749e-08  
q 2.49529131911948 1.0935e-07 au
tp 2458037.970806445584
(2017-Oct-11.47080645)
9.5735e-05 TDB
node 210.52806789694 2.3444e-05 deg
peri 310.1773975745444 3.0343e-05 deg
i 8.523588001516606 4.3084e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1574  
   data-arc span      12676 days (34.70 yr)  
   first obs. used      1986-04-29  
   last obs. used      2021-01-11  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .53065  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 05:41:17  

Additional Information
 Jupiter MOID = 1.99163 au 
 T_jup = 3.321 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.579950432571892E-15 -4.319570495685872E-15 7.103292295090235E-13 -4.241712787744544E-15 1.733484315296075E-13 1.797422454796294E-15
q -4.319570495685872E-15 1.195750225117546E-14 -1.492967147023063E-12 1.006272029959635E-14 -3.954031591365615E-13 -4.804994988770555E-15
tp 7.103292295090235E-13 -1.492967147023063E-12 9.165265199876783E-9 -3.955579471601724E-12 1.85414751431694E-9 5.947268030435613E-13
node -4.241712787744544E-15 1.006272029959635E-14 -3.955579471601724E-12 5.495982365417969E-10 -5.440492344238241E-10 -3.238830867635744E-11
peri 1.733484315296075E-13 -3.954031591365615E-13 1.85414751431694E-9 -5.440492344238241E-10 9.207043649833336E-10 3.215500789951842E-11
i 1.797422454796294E-15 -4.804994988770555E-15 5.947268030435613E-13 -3.238830867635744E-11 3.215500789951842E-11 1.856266877088371E-11

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 14.28   n/a E2021B10  
diameter diameter 3.395 km 0.614 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 2.932 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:
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]
geometric albedo albedo 0.351   0.088 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

27564 Astreichelt           Discovered 2000 May 27 by the Lincoln Laboratory Near-Earth Asteroid Research Team at Socorro.
Astrid Reichelt mentored a finalist in the 2011 Broadcom MASTERS, a math and science competition for middle-school students. She teaches at the Saint John Fisher Parish School, Rancho Palos Verdes, California.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20111210/MPCPages.arcLast Updated: 2011-12-12

[ hide close-approach data ]
Close-Approach Data   ...sorted by Date/Time (TDB)
Date/Time (TDB) Time Uncertainty
(days_HH:MM)
Body Nominal Distance (au) Minimum Distance (au) Maximum Distance (au) V-relative (km/s) V-infinity (km/s) JD (TDB) Time Uncertainty (minutes) Semi-major axis (km) Semi-minor axis (km) range-LOV angle (deg) N-sigma BP Orbit Ref. Reference Modified
2152-Dec-09 10:27 00:03 Jupiter 1.99743683811592 1.99743626472516 1.99743741151099 3.24368205917298 3.11020318773322 2507404.935104243 2.85632565982686 191.926104691996 14.8764385884188 -80.9153566352034 3069909.81904251 T 25 CATAB v2.0f-lin.ifort 2021-Apr-13 05:41:26 2021-Apr-13 05:41

Alternate Designations
 2000 KE77 = 1986 HG = 1997 TJ2 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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