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2195 Tengstrom (1941 SP1)
Classification: Main-belt Asteroid          SPK-ID: 2002195
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1051232857636043 4.8443e-08  
a 2.221603712879118 8.161e-09 AU
q 1.988061430916643 1.0747e-07 AU
i 4.57592079567505 5.5794e-06 deg
node 101.0013379065254 6.0463e-05 deg
peri 295.3885671944473 6.5327e-05 deg
M 20.24535790898788 2.4825e-05 deg
tp 2456932.482404693634
(2014-Oct-01.98240469)
8.336e-05 JED
period 1209.478954156758
3.31
6.6645e-06
1.825e-08
d
yr
n .2976488336260384 1.6401e-09 deg/d
Q 2.455145994841594 9.0189e-09 AU
  Orbit Determination Parameters
   # obs. used (total)      1239  
   data-arc span      30387 days (83.20 yr)  
   first obs. used      1931-10-10  
   last obs. used      2014-12-20  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .51723  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Jan-07 23:55:47  

Additional Information
 Earth MOID = 1.00006 AU 
 T_jup = 3.638 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 12.3 mag n/a MPO313436  
rotation period rot_per 2.82112 h n/a Asteroid Lightcurve DataBase (Rev. 2014-Mar-01) Published Reference List:
[Higgins, D.; Pravec, P.; Kusnirak, P.; Galad, A.; et al. (2006) Minor Planet Bul. 33, 89-91.]
[Behrend, R. (2006) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
[Higgins, D.J. (2011) http://www.david-higgins.com/Astronomy/astero id/lightcurves.htm]
[Pravec, P.; Wolf, M.; Sarounova, L. (2011) http://www.asu.cas.cz/~ppravec/neo.htm]
[Behrend, R. (2012) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]

2195 Tengstrom (1941 SP1)          Discovered 1941-Sep-27 by Oterma, L. at Turku
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 1941 SP1 = 1931 TC3 = 1934 PQ = 1936 DF = 1943 GT = 1944 QD = 1951 VA = 1973 GC1 = 1974 RC2 = 1976 GO4 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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