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100612 (1997 SL25)
Classification: Main-belt Asteroid          SPK-ID: 2100612
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 30 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2003819725949306 2.9641e-08  
a 2.700152603214582 1.1925e-08 au
q 2.159090698275107 8.0615e-08 au
i 13.37297656252941 3.5935e-06 deg
node 178.6956496521076 1.5438e-05 deg
peri 175.9315066070286 1.8678e-05 deg
M 93.9804435285338 9.1149e-06 deg
tp 2458777.426443937300
(2019-Oct-20.92644394)
4.0873e-05 TDB
period 1620.618869885727
4.44
1.0736e-05
2.939e-08
d
yr
n .2221373616520856 1.4716e-09 deg/d
Q 3.241214508154056 1.4315e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1073  
   data-arc span      9019 days (24.69 yr)  
   first obs. used      1996-05-14  
   last obs. used      2021-01-22  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .49261  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 08:25:46  

Additional Information
 Earth MOID = 1.15318 au 
 Jupiter MOID = 2.21413 au 
 T_jup = 3.300 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457475.5 (2016-Mar-28.0) TDB
Reference: JPL 30 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2028472503188044 2.9827e-08  
q 2.150299006328912 8.1298e-08 au
tp 2457156.037796555725
(2015-May-13.53779656)
4.0671e-05 TDB
node 178.8050899064501 1.54e-05 deg
peri 175.4958371194395 1.8515e-05 deg
i 13.39599098393182 3.5996e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1073  
   data-arc span      9019 days (24.69 yr)  
   first obs. used      1996-05-14  
   last obs. used      2021-01-22  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .49261  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 08:25:46  

Additional Information
 Jupiter MOID = 2.21413 au 
 T_jup = 3.300 
Orbit Covariance (6×6)
  e q tp node peri i
e 8.896480462598001E-16 -2.408387130959108E-15 3.285154069211026E-14 4.004727014152184E-16 -1.639076496313795E-15 -1.390479265349939E-15
q -2.408387130959108E-15 6.609329119631661E-15 -1.7885786839735E-13 -3.114394515043678E-15 -1.217387478757325E-14 3.855111537089805E-15
tp 3.285154069211026E-14 -1.7885786839735E-13 1.654108092790928E-9 6.461361170750958E-12 4.306922940316998E-10 -1.002135370486399E-12
node 4.004727014152184E-16 -3.114394515043678E-15 6.461361170750958E-12 2.371749770296326E-10 -2.285099942782953E-10 5.512588689118738E-12
peri -1.639076496313795E-15 -1.217387478757325E-14 4.306922940316998E-10 -2.285099942782953E-10 3.428196224857089E-10 -5.579329760617476E-12
i -1.390479265349939E-15 3.855111537089805E-15 -1.002135370486399E-12 5.512588689118738E-12 -5.579329760617476E-12 1.295703633075709E-11

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.9   n/a MPO449610  
diameter diameter 2.830 km 0.662 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.242   0.168 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

100612 (1997 SL25)          Discovered 1997-Sep-29 by Shimizu, Y., Urata, T. at Nachi-Katsuura
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

Alternate Designations
 1997 SL25 = 2003 AT92 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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