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17638 Sualan (1996 PB1)
Classification: Main-belt Asteroid          SPK-ID: 2017638
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2154659301351979 3.986e-08  
a 2.378035160281204 6.9479e-09 au
q 1.86564960257701 9.487e-08 au
i 2.069750966501931 4.3845e-06 deg
node 343.131871765266 9.6622e-05 deg
peri 337.2156441644201 9.6935e-05 deg
M 234.9263503791263 7.5584e-06 deg
tp 2459665.860112834117
(2022-Mar-27.36011283)
2.879e-05 TDB
period 1339.447926306637
3.67
5.8702e-06
1.607e-08
d
yr
n .2687674473412756 1.1779e-09 deg/d
Q 2.890420717985398 8.445e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1355  
   data-arc span      10980 days (30.06 yr)  
   first obs. used      1991-02-21  
   last obs. used      2021-03-15  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .50537  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 02:08:58  

Additional Information
 Earth MOID = .851075 au 
 Jupiter MOID = 2.42641 au 
 T_jup = 3.508 
[ 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 15.28   n/a E2021B10  
rotation period rot_per 3.494 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:
[Erasmus, N.; Navarro-Meza, S.; McNeill, A.; Trilling, D.E.; et al. (2020) Ap. J. Suppl. Ser. 247, A13.]

17638 Sualan           Discovered 1996 Aug. 11 by G. R. Viscome at Rand Observatory.
Sue and Alan French live in Scotia, New York. Both are avid amateur astronomers, telescope builders and writers who have for many years brought the wonders of astronomy to the public.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20020921/MPCPages.arcLast Updated: 2003-10-02

Alternate Designations
 1996 PB1 = 1998 AM4 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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