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2292 Seili (1942 RM)
Classification: Main-belt Asteroid          SPK-ID: 2002292
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 32 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2364696042167343 4.4048e-08  
a 2.620478259178029 1.1384e-08 au
q 2.000814802371644 1.149e-07 au
i 14.52861798022514 5.2538e-06 deg
node 172.4486688487558 1.6431e-05 deg
peri 129.1701187984195 1.8565e-05 deg
M 58.34951776177522 8.9932e-06 deg
tp 2458349.366853183996
(2018-Aug-18.86685318)
3.8305e-05 TDB
period 1549.42039491863
4.24
1.0097e-05
2.764e-08
d
yr
n .2323449472981192 1.514e-09 deg/d
Q 3.240141715984414 1.4076e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2032  
   data-arc span      28175 days (77.14 yr)  
   first obs. used      1942-09-07  
   last obs. used      2019-10-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .43567  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-07 02:14:18  

Additional Information
 Earth MOID = 1.01905 au 
 Jupiter MOID = 2.20306 au 
 T_jup = 3.321 
[ 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 11.7   n/a MPO431521  
diameter diameter 11.335 km 0.292 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
rotation period rot_per 5.121 h n/a LCDB (Rev. 2019-January); Warner et al., 2009 Published Reference List:
[Behrend, R. (2001) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
[Behrend, R. (2005) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
[Behrend, R. (2009) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
[Behrend, R. (2018) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
geometric albedo albedo 0.242   0.026 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  

2292 Seili (1942 RM)          Discovered 1942-Sep-07 by Vaisala, Y. at Turku
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 1942 RM = 1959 TD = 1971 HS = 1975 FU = 1975 GN1 = 1980 PO 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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