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2639 Planman (1940 GN)
Classification: Main-belt Asteroid          SPK-ID: 2002639
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 30 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1928065116924198 3.2804e-08  
a 2.444586915320614 8.5737e-09 au
q 1.973254639648713 8.1558e-08 au
i 9.668192070908635 3.7207e-06 deg
node 79.13069118883658 2.2505e-05 deg
peri 167.236968743881 2.5103e-05 deg
M 308.9963699629828 1.2899e-05 deg
tp 2459198.290412982155
(2020-Dec-14.79041298)
5.0377e-05 TDB
period 1396.068252826269
3.82
7.3445e-06
2.011e-08
d
yr
n .2578670485996644 1.3566e-09 deg/d
Q 2.915919190992514 1.0227e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2366  
   data-arc span      29289 days (80.19 yr)  
   first obs. used      1940-04-09  
   last obs. used      2020-06-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .41691  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jun-23 15:47:50  

Additional Information
 Earth MOID = .960643 au 
 Jupiter MOID = 2.12075 au 
 T_jup = 3.455 
[ show covariance matrix ]

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 13.2   n/a MPO502178  
rotation period rot_per 89.5 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:
[Higgins, D. (2011) Minor Planet Bull. 38, 41-46.]

2639 Planman (1940 GN)          Discovered 1940-Apr-09 by Vaisala, Y. at Turku
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 1940 GN = 1948 NB = 1959 GL 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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