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3935 Toatenmongakkai (1987 PB)
Classification: Main-belt Asteroid          SPK-ID: 2003935
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 30 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2310685821665457 5.8568e-08  
a 2.540303871352436 1.0053e-08 au
q 1.953319457526841 1.515e-07 au
i 8.760637842541028 4.9115e-06 deg
node 300.2345769522328 3.2215e-05 deg
peri 105.189370853993 3.4289e-05 deg
M 334.7737030067466 1.0884e-05 deg
tp 2459104.128195474175
(2020-Sep-11.62819547)
4.4635e-05 TDB
period 1478.859555989543
4.05
8.7786e-06
2.403e-08
d
yr
n .2434308238006515 1.445e-09 deg/d
Q 3.12728828517803 1.2376e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1863  
   data-arc span      19388 days (53.08 yr)  
   first obs. used      1967-10-02  
   last obs. used      2020-10-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .40864  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 03:55:51  

Additional Information
 Earth MOID = .984615 au 
 Jupiter MOID = 2.34517 au 
 T_jup = 3.392 
[ 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 12.0   n/a MPO492797  
diameter diameter 9.612 km 0.238 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 106.3 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:
[Behrend, R. (2005) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
geometric albedo albedo 0.203   0.021 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

3935 Toatenmongakkai (1987 PB)          Discovered 1987-Aug-14 by Seki, T. at Geisei
Reference: DISCOVERY.DBLast Updated: 2003-08-29

Alternate Designations
 1987 PB = 1939 XK = 1951 WM = 1967 TO = 1971 QU1 = 1979 SC3 = 1983 OJ 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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