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3648 Raffinetti (1957 HK)
Classification: Main-belt Asteroid          SPK-ID: 2003648
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 43 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1069158732928783 1.3619e-08  
a 2.414832997578074 6.208e-09 au
q 2.156649018785555 3.4677e-08 au
i 7.901734111824922 6.2406e-07 deg
node 208.9813540886884 4.4506e-06 deg
peri 33.94099631831076 8.4035e-06 deg
M 8.750899924142521 8.2671e-06 deg
tp 2459363.181971462617
(2021-May-28.68197146)
3.1449e-05 TDB
period 1370.657918320672
3.75
5.2855e-06
1.447e-08
d
yr
n .2626475907577812 1.0128e-09 deg/d
Q 2.673016976370592 6.8718e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2861  
   data-arc span      24938 days (68.28 yr)  
   first obs. used      1953-03-20  
   last obs. used      2021-06-29  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .46608  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-07 22:37:52  

Additional Information
 Earth MOID = 1.14979 au 
 Jupiter MOID = 2.3288 au 
 T_jup = 3.497 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457074.5 (2015-Feb-21.0) TDB
Reference: JPL 43 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1075811115562972 1.3591e-08  
q 2.15527939635573 3.4628e-08 au
tp 2456621.397574750295
(2013-Nov-24.89757475)
3.089e-05 TDB
node 209.0089969339053 4.4524e-06 deg
peri 33.9573796916189 8.3824e-06 deg
i 7.899293702100518 6.2381e-07 deg
  Orbit Determination Parameters
   # obs. used (total)      2861  
   data-arc span      24938 days (68.28 yr)  
   first obs. used      1953-03-20  
   last obs. used      2021-06-29  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .46608  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-07 22:37:52  

Additional Information
 Jupiter MOID = 2.3288 au 
 T_jup = 3.497 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.847053523855995E-16 -4.648905101807798E-16 2.891058213558338E-13 1.609831821795112E-14 4.682343504391078E-14 3.497336064353248E-15
q -4.648905101807798E-16 1.199074219873807E-15 -7.206726711196871E-13 -3.858965576289804E-14 -1.153169897000272E-13 -8.437407598931352E-15
tp 2.891058213558338E-13 -7.206726711196871E-13 9.541693994145481E-10 -6.8712930137808E-12 2.197284119663414E-10 4.664834033465697E-13
node 1.609831821795112E-14 -3.858965576289804E-14 -6.8712930137808E-12 1.982371238534502E-11 -2.101734215832669E-11 1.960777475576882E-12
peri 4.682343504391078E-14 -1.153169897000272E-13 2.197284119663414E-10 -2.101734215832669E-11 7.026429573993339E-11 -1.880730886850822E-12
i 3.497336064353248E-15 -8.437407598931352E-15 4.664834033465697E-13 1.960777475576882E-12 -1.880730886850822E-12 3.891441053161466E-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 13.13   n/a MPO614063  
diameter diameter 5.314 km 0.033 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.609   0.067 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

3648 Raffinetti (1957 HK)          Discovered 1957-Apr-24 by at La Plata
Reference: DISCOVERY.DBLast Updated: 2003-08-29

Alternate Designations
 1957 HK = 1953 FE1 = 1972 GG = 1983 CW2 = 1983 EJ1 = 1987 HM 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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