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15198 (1940 GJ)
Classification: Main-belt Asteroid          SPK-ID: 2015198
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 40 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2248426872698722 1.7173e-08  
a 2.329990932311294 7.5511e-09 au
q 1.806109509775988 3.9635e-08 au
i 24.9816626528951 8.2165e-07 deg
node 35.15352832888986 1.628e-06 deg
peri 229.1481848440393 5.3803e-06 deg
M 207.6199614528814 4.7113e-06 deg
tp 2459750.364081636811
(2022-Jun-19.86408164)
1.8911e-05 TDB
period 1299.061683384742
3.56
6.3151e-06
1.729e-08
d
yr
n .2771230993912542 1.3472e-09 deg/d
Q 2.8538723548466 9.2489e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2380  
   data-arc span      29571 days (80.96 yr)  
   first obs. used      1940-04-04  
   last obs. used      2021-03-21  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .41722  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-04 01:59:35  

Additional Information
 Earth MOID = .857984 au 
 Jupiter MOID = 2.32648 au 
 T_jup = 3.415 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457554.5 (2016-Jun-15.0) TDB
Reference: JPL 40 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2248857767864515 1.7146e-08  
q 1.805769098922246 3.9568e-08 au
tp 2457153.028923110000
(2015-May-10.52892311)
1.2658e-05 TDB
node 35.16352965692975 1.6272e-06 deg
peri 229.1826881036556 5.3846e-06 deg
i 24.98984762677313 8.2176e-07 deg
  Orbit Determination Parameters
   # obs. used (total)      2380  
   data-arc span      29571 days (80.96 yr)  
   first obs. used      1940-04-04  
   last obs. used      2021-03-21  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .41722  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-04 01:59:35  

Additional Information
 Jupiter MOID = 2.32648 au 
 T_jup = 3.415 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.939836885626645E-16 -6.710940986428925E-16 4.470938652346685E-14 -9.205240890553972E-15 9.250226598825647E-15 -1.028709286786618E-14
q -6.710940986428925E-16 1.565591177658956E-15 -9.555853356121226E-14 2.153974476509978E-14 -1.804178130271207E-14 2.384943381417472E-14
tp 4.470938652346685E-14 -9.555853356121226E-14 1.602209938636776E-10 2.810046182045245E-13 6.524483246826009E-11 -3.499958924148295E-12
node -9.205240890553972E-15 2.153974476509978E-14 2.810046182045245E-13 2.647930288467404E-12 -1.766899940436211E-12 6.665154830646278E-13
peri 9.250226598825647E-15 -1.804178130271207E-14 6.524483246826009E-11 -1.766899940436211E-12 2.899423737395829E-11 -1.438393102668525E-12
i -1.028709286786618E-14 2.384943381417472E-14 -3.499958924148295E-12 6.665154830646278E-13 -1.438393102668525E-12 6.752828588395375E-13

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 13.71   n/a MPCxxxxx  
diameter diameter 4.255 km 0.253 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.334   0.095 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2016AJ....152...63N)  

15198 (1940 GJ)          Discovered 1940-Apr-05 by Oterma, L. at Turku
Reference: 20000621/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1940 GJ = 2000 DL 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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