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37495 (1226 T-2)
Classification: Main-belt Asteroid          SPK-ID: 2037495
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 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .04345857259693234 3.8242e-08  
a 3.128027026574649 1.9739e-08 au
q 2.992087436955088 1.1882e-07 au
i 5.050415349320566 5.0608e-06 deg
node 7.776894935196012 4.6046e-05 deg
peri 53.45958855274296 7.6634e-05 deg
M 98.60228709530234 5.9672e-05 deg
tp 2458447.036914586188
(2018-Nov-24.53691459)
0.00033522 TDB
period 2020.71084371901
5.53
1.9127e-05
5.237e-08
d
yr
n .1781551284880717 1.6863e-09 deg/d
Q 3.26396661619421 2.0597e-08 au
  Orbit Determination Parameters
   # obs. used (total)      879  
   data-arc span      17023 days (46.61 yr)  
   first obs. used      1973-09-19  
   last obs. used      2020-04-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55789  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 08:25:53  

Additional Information
 Earth MOID = 2.00761 au 
 Jupiter MOID = 1.89075 au 
 T_jup = 3.207 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456844.5 (2014-Jul-06.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .04323235999241957 3.7578e-08  
q 2.995643202027833 1.1733e-07 au
tp 2456444.700353846419
(2013-Jun-01.20035385)
0.00034232 TDB
node 7.824845865434831 4.6082e-05 deg
peri 56.85927192826654 7.736e-05 deg
i 5.04781331539625 5.0571e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      879  
   data-arc span      17023 days (46.61 yr)  
   first obs. used      1973-09-19  
   last obs. used      2020-04-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55789  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 08:25:53  

Additional Information
 Jupiter MOID = 1.89075 au 
 T_jup = 3.207 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.412142088245344E-15 -4.351918606929862E-15 -3.10675324654917E-12 8.113605615302293E-15 -5.862056291423765E-13 -1.483889326815181E-15
q -4.351918606929862E-15 1.376667563118409E-14 8.726806826690427E-12 -2.537005924178622E-14 1.66305719119474E-12 4.392412540657894E-15
tp -3.10675324654917E-12 8.726806826690427E-12 1.171809987753913E-7 -4.170982583357429E-11 2.12894091487642E-8 1.035369243343927E-12
node 8.113605615302293E-15 -2.537005924178622E-14 -4.170982583357429E-11 2.123518171079083E-9 -2.122390948503419E-9 -2.265677102055061E-11
peri -5.862056291423765E-13 1.66305719119474E-12 2.12894091487642E-8 -2.122390948503419E-9 5.984623583831747E-9 2.279269925593449E-11
i -1.483889326815181E-15 4.392412540657894E-15 1.035369243343927E-12 -2.265677102055061E-11 2.279269925593449E-11 2.557423069593943E-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 14.7   n/a MPO468204  
diameter diameter 6.213 km 0.200 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.060   0.015 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

37495 (1226 T-2)          Discovered 1973-Sep-29 by van Houten, C. J., van Houten-Groeneveld, I., Gehrels, T. at Palomar
Reference: 20020227/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1226 T-2 = 2001 RA78 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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