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2565 Grogler (1977 TB1)
Classification: Main-belt Asteroid          SPK-ID: 2002565
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.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 26 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2348384569582863 3.9433e-08  
a 2.357664197465117 8.2211e-09 au
q 1.803993975306613 9.3224e-08 au
i 2.03319341467858 4.326e-06 deg
node 343.9335737619023 9.6249e-05 deg
peri 35.96401663971466 9.6538e-05 deg
M 282.544355595214 9.8595e-06 deg
tp 2459284.993219704929
(2021-Mar-11.49321970)
3.7269e-05 TDB
period 1322.273668766301
3.62
6.9161e-06
1.894e-08
d
yr
n .2722583142231704 1.424e-09 deg/d
Q 2.911334419623622 1.0152e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1666  
   data-arc span      25782 days (70.59 yr)  
   first obs. used      1948-10-08  
   last obs. used      2019-05-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52217  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-29 21:39:51  

Additional Information
 Earth MOID = .806883 au 
 Jupiter MOID = 2.55457 au 
 T_jup = 3.515 
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Orbital Elements at Epoch 2456219.5 (2012-Oct-19.0) TDB
Reference: JPL 26 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2342053051301371 3.925e-08  
q 1.805261683577274 9.2596e-08 au
tp 2456642.692850742300
(2013-Dec-16.19285074)
2.9369e-05 TDB
node 344.0330862179782 9.6281e-05 deg
peri 36.06450935309731 9.6574e-05 deg
i 2.033547290662442 4.3232e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1666  
   data-arc span      25782 days (70.59 yr)  
   first obs. used      1948-10-08  
   last obs. used      2019-05-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52217  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-29 21:39:51  

Additional Information
 Jupiter MOID = 2.55457 au 
 T_jup = 3.515 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.540549738674477E-15 -3.625907059682588E-15 -4.880487887758211E-14 2.10631039317772E-15 -5.934915295730739E-14 -6.533090233110971E-16
q -3.625907059682588E-15 8.573967300744608E-15 1.933307197022645E-13 -5.670673645027718E-15 1.551404447188048E-13 1.516233531350049E-15
tp -4.880487887758211E-14 1.933307197022645E-13 8.6251730080158E-10 -4.844705100912063E-12 2.259355649601135E-10 -4.645121020851638E-13
node 2.10631039317772E-15 -5.670673645027718E-15 -4.844705100912063E-12 9.270095685581801E-9 -9.265252619797451E-9 6.840319771610991E-11
peri -5.934915295730739E-14 1.551404447188048E-13 2.259355649601135E-10 -9.265252619797451E-9 9.326622061492971E-9 -6.846477752799837E-11
i -6.533090233110971E-16 1.516233531350049E-15 -4.645121020851638E-13 6.840319771610991E-11 -6.846477752799837E-11 1.869035075937798E-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 14.3   n/a MPO384773  
rotation period rot_per 2.150 h n/a LCDB (Rev. 2019-August); 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.]

2565 Grogler (1977 TB1)          Discovered 1977-Oct-12 by Wild, P. at Zimmerwald
Reference: DISCOVERY.DBLast Updated: 2003-08-29

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Alternate Designations
 1977 TB1 = 1948 RG1 = 1948 TC = 1976 JP9 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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