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2512 Tavastia (1940 GG)
Classification: Main-belt Asteroid          SPK-ID: 2002512
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 42 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1214460506480412 2.9519e-08  
a 2.243804374517862 6.3637e-09 au
q 1.971303194805869 6.5752e-08 au
i 6.380508477650798 3.3418e-06 deg
node 69.521691934 3.4902e-05 deg
peri 14.95942711499083 3.9079e-05 deg
M 44.27058813911394 1.6518e-05 deg
tp 2458849.530678452336
(2020-Jan-01.03067845)
5.6363e-05 TDB
period 1227.653799998661
3.36
5.2226e-06
1.43e-08
d
yr
n .2932422805194693 1.2475e-09 deg/d
Q 2.516305554229855 7.1365e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2453  
   data-arc span      29281 days (80.17 yr)  
   first obs. used      1940-04-03  
   last obs. used      2020-06-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .4333  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 04:08:40  

Additional Information
 Earth MOID = .98802 au 
 Jupiter MOID = 2.67741 au 
 T_jup = 3.615 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456744.5 (2014-Mar-28.0) TDB
Reference: JPL 42 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1208618906053958 2.9447e-08  
q 1.972399752309355 6.5525e-08 au
tp 2456393.238627984320
(2013-Apr-10.73862798)
5.8434e-05 TDB
node 69.55113585856 3.4921e-05 deg
peri 14.71910022365116 3.916e-05 deg
i 6.379310926825871 3.3406e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      2453  
   data-arc span      29281 days (80.17 yr)  
   first obs. used      1940-04-03  
   last obs. used      2020-06-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .4333  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 04:08:40  

Additional Information
 Jupiter MOID = 2.67741 au 
 T_jup = 3.615 
Orbit Covariance (6×6)
  e q tp node peri i
e 8.670983730942919E-16 -1.922601427642749E-15 -6.925987566371844E-14 -7.33136805646741E-16 -2.819035201224886E-14 -9.450105016915766E-16
q -1.922601427642749E-15 4.293513179258615E-15 7.940663389262639E-14 1.097840481229125E-15 4.220130710296424E-14 2.211245548983138E-15
tp -6.925987566371844E-14 7.940663389262639E-14 3.414567261938061E-9 5.174078368019998E-12 1.050042471804731E-9 -1.53231383143784E-12
node -7.33136805646741E-16 1.097840481229125E-15 5.174078368019998E-12 1.219500989468433E-9 -1.209875803039914E-9 -8.799662637687616E-12
peri -2.819035201224886E-14 4.220130710296424E-14 1.050042471804731E-9 -1.209875803039914E-9 1.533509507950192E-9 8.299121436677395E-12
i -9.450105016915766E-16 2.211245548983138E-15 -1.53231383143784E-12 -8.799662637687616E-12 8.299121436677395E-12 1.11599094242094E-11

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 12.5   n/a MPO412184  
diameter diameter 7.548 km 0.081 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
rotation period rot_per 7.296 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Published Reference List:
[Simpson, G.; Chong, E.; Gerhardt, M.; Gorsky, S.; et al. (2013) Minor Planet Bull. 146-151.]
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]
[Behrend, R. (2019) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
geometric albedo albedo 0.352   0.066 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  

2512 Tavastia (1940 GG)          Discovered 1940-Apr-03 by Vaisala, Y. at Turku
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 1940 GG = 1943 DN = 1965 UC2 = 1965 VF = 1965 WY = 1970 ER = 1972 XC1 = 1975 VP2 = 1977 FW 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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