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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 ]

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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 33 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2312082261641233 5.8222e-08  
a 2.540758043270552 9.2943e-09 au
q 1.953313882973739 1.504e-07 au
i 8.760630882083257 4.7886e-06 deg
node 300.2348944780236 3.0539e-05 deg
peri 105.2005856723495 3.2756e-05 deg
M 23.4467846684462 1.0281e-05 deg
tp 2459104.156108398649
(2020-Sep-11.65610840)
4.2389e-05 TDB
period 1479.256173796935
4.05
8.1168e-06
2.222e-08
d
yr
n .2433655551870754 1.3354e-09 deg/d
Q 3.128202203567365 1.1443e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2037  
   data-arc span      19466 days (53.30 yr)  
   first obs. used      1967-10-02  
   last obs. used      2021-01-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .39533  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 01:14:20  

Additional Information
 Earth MOID = .983766 au 
 Jupiter MOID = 2.34514 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 12.02   n/a E2021B10  
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. 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:
[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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