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2528 Mohler (1953 TF1)
Classification: Main-belt Asteroid          SPK-ID: 2002528
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 34 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .170819640055781 3.7943e-08  
a 3.147186123265455 1.2564e-08 au
q 2.609584922500701 1.171e-07 au
i .5118578772061793 4.1682e-06 deg
node 162.7885988881834 0.00036779 deg
peri 181.8749277940144 0.00036791 deg
M 5.811908240518767 9.4845e-06 deg
tp 2458967.577082284811
(2020-Apr-28.07708228)
5.3689e-05 TDB
period 2039.304456811254
5.58
1.2212e-05
3.343e-08
d
yr
n .1765307768526686 1.0571e-09 deg/d
Q 3.684787324030208 1.471e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2686  
   data-arc span      32048 days (87.74 yr)  
   first obs. used      1933-01-29  
   last obs. used      2020-10-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .47127  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 04:08:30  

Additional Information
 Earth MOID = 1.60214 au 
 Jupiter MOID = 1.72976 au 
 T_jup = 3.186 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456752.5 (2014-Apr-05.0) TDB
Reference: JPL 34 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1764092600051947 3.8049e-08  
q 2.590166911087735 1.1845e-07 au
tp 2456930.006977620449
(2014-Sep-29.50697762)
5.1123e-05 TDB
node 162.6309646306532 0.00037064 deg
peri 182.3692614449531 0.00037075 deg
i .5092739346054527 4.1717e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      2686  
   data-arc span      32048 days (87.74 yr)  
   first obs. used      1933-01-29  
   last obs. used      2020-10-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .47127  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 04:08:30  

Additional Information
 Jupiter MOID = 1.72976 au 
 T_jup = 3.186 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.447715236629661E-15 -4.490765459535235E-15 6.354831740523224E-13 4.021295679361168E-15 8.265698636541501E-14 8.183915318475759E-18
q -4.490765459535235E-15 1.402959898839903E-14 -2.047381202487019E-12 -9.152885093358487E-15 -2.748851264570821E-13 -9.543884282745713E-18
tp 6.354831740523224E-13 -2.047381202487019E-12 2.61354025126351E-9 4.676404220922945E-12 4.69129936599775E-10 -1.227864215476121E-13
node 4.021295679361168E-15 -9.152885093358487E-15 4.676404220922945E-12 1.373768192445422E-7 -1.373707290487924E-7 4.958956855429264E-10
peri 8.265698636541501E-14 -2.748851264570821E-13 4.69129936599775E-10 -1.373707290487924E-7 1.374575368878641E-7 -4.958953367139888E-10
i 8.183915318475759E-18 -9.543884282745713E-18 -1.227864215476121E-13 4.958956855429264E-10 -4.958953367139888E-10 1.740327846716106E-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 12.2   n/a MPO435721  
diameter diameter 19.443 km 0.121 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 6.49130 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 sidereal period (not synodic); Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Durech, J.; Hanus, J.; Oszkiewsicz, D.; Vanco, R. (2016) Astron. Astrophys. 587, A48.]
geometric albedo albedo 0.057   0.005 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

2528 Mohler (1953 TF1)          Discovered 1953-Oct-08 by Goethe Link Observatory at Brooklyn
Discovered by the Indiana Asteroid Program, Goethe Link Observatory, University of Indiana. This program was conceived and directed by F. K. Edmondson; the plates were blinked and measured astrometrically by B. Potter and, following her retirement, by D. Owings; and the photometry was performed under the direction of T. Gehrels. During the years 1947-1967, in which the plates were exposed, a large number of people participated in various aspects of the program.
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 1953 TF1 = 1933 BQ = 1936 SK = 1942 VJ = 1961 CP = 1970 SL1 = 1970 WE1 = 1975 RQ 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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