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19617 Duhamel (1999 PH1)
Classification: Outer Main-belt Asteroid          SPK-ID: 2019617
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 29 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1447997867504077 3.6575e-08  
a 3.213360880340733 1.9046e-08 au
q 2.748066910115292 1.1728e-07 au
i 1.880628315461921 4.2265e-06 deg
node 138.5458552287408 0.00013599 deg
peri 291.4292735754831 0.00013697 deg
M 172.4280832174681 1.6125e-05 deg
tp 2458192.772338338753
(2018-Mar-15.27233834)
9.2143e-05 TDB
period 2103.960975663718
5.76
1.8705e-05
5.121e-08
d
yr
n .1711058352146641 1.5212e-09 deg/d
Q 3.678654850566173 2.1804e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1437  
   data-arc span      9337 days (25.56 yr)  
   first obs. used      1994-10-31  
   last obs. used      2020-05-24  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .51747  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 02:59:44  

Additional Information
 Earth MOID = 1.76264 au 
 Jupiter MOID = 1.61016 au 
 T_jup = 3.174 
[ show covariance matrix ]

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 13.73   n/a MPCxxxxx  
diameter diameter 10.532 km 0.242 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.063   0.008 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

19617 Duhamel           Discovered 1999 Aug. 8 by P. G. Comba at Prescott.
Jean-Maria-Constant Duhamel (1797-1872) was a French applied mathematician who introduced a method to study the propagation of heat in solids with variable boundary temperatures. A generalization of this method is referred to as the Duhamel principle.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20010309/MPCPages.arcLast Updated: 2009-05-11

[ hide close-approach data ]
Close-Approach Data   ...sorted by Date/Time (TDB)
Date/Time (TDB) Time Uncertainty
(days_HH:MM)
Body Nominal Distance (au) Minimum Distance (au) Maximum Distance (au) V-relative (km/s) V-infinity (km/s) JD (TDB) Time Uncertainty (minutes) Semi-major axis (km) Semi-minor axis (km) range-LOV angle (deg) N-sigma BP Orbit Ref. Reference Modified
2034-Aug-12 19:24 < 00:01 Jupiter 1.97134263819771 1.97134214370079 1.97134313269462 4.07001023512306 3.96303515710529 2464187.308259548 0.58447327378796 43.680854350846 20.0437655773822 81.4498079779043 3284049.56796927 T 29 CATAB v2.0f-lin.ifort 2021-Apr-13 02:59:52 2021-Apr-13 02:59
2045-Dec-05 15:39 < 00:01 Jupiter 1.86720644181647 1.86720592282799 1.86720696080495 3.4465015485346 3.31226676968633 2468320.151960261 0.914610013607023 55.7457893526175 17.8809300597994 82.4001650060209 2928019.56439687 T 29 CATAB v2.0f-lin.ifort 2021-Apr-13 02:59:52 2021-Apr-13 02:59
2057-Apr-22 22:58 00:01 Jupiter 1.78414589362416 1.78414538673356 1.78414640051476 2.95828269413542 2.79319482694167 2472476.456801455 1.26810345568638 66.0616542453171 13.7516543549567 85.869986331758 2766666.69775545 T 29 CATAB v2.0f-lin.ifort 2021-Apr-13 02:59:52 2021-Apr-13 02:59
2068-Oct-03 17:04 00:02 Jupiter 1.72396320537525 1.72396274923183 1.72396366151878 2.61328717945641 2.41797936037899 2476658.211250416 1.65620312684873 73.6330595344061 8.68891354414477 -89.4653850374908 2744321.80105056 T 29 CATAB v2.0f-lin.ifort 2021-Apr-13 02:59:52 2021-Apr-13 02:59
2080-Apr-09 22:08 00:02 Jupiter 1.69319036262608 1.69318998263663 1.69319074261543 2.40979415141466 2.19239665419337 2480864.421904619 2.10308487642796 78.2421053598989 6.16148467325835 -84.7868917289095 2870503.48986617 T 29 CATAB v2.0f-lin.ifort 2021-Apr-13 02:59:52 2021-Apr-13 02:59
2091-Nov-03 09:07 00:03 Jupiter 1.68458365002562 1.6845833263414 1.68458397370975 2.30831968788103 2.07911599868185 2485088.880109180 2.64724205775836 78.9744592725312 8.48742520437512 -80.4294969809138 3157451.79429688 T 29 CATAB v2.0f-lin.ifort 2021-Apr-13 02:59:52 2021-Apr-13 02:59
2103-Jun-09 16:17 00:03 Jupiter 1.69502948338727 1.69502907872673 1.69502988804811 2.28010187720573 2.0492548312398 2489324.178557428 3.32081868856976 74.1201794364539 13.4338348277884 -75.8192046430603 3620465.35008745 T 29 CATAB v2.0f-lin.ifort 2021-Apr-13 02:59:52 2021-Apr-13 02:59
2115-Jan-17 12:17 00:04 Jupiter 1.7146705208672 1.71466982467988 1.71467121705462 2.29373736415017 2.06718647838867 2493564.011526999 4.15360541524394 63.2233982456792 22.7709093276405 -69.7517048542431 3557456.9479133 T 29 CATAB v2.0f-lin.ifort 2021-Apr-13 02:59:52 2021-Apr-13 02:59
2126-Aug-24 06:14 00:05 Jupiter 1.74490517047151 1.74490398645057 1.74490635449206 2.34875771319356 2.13209066318063 2497800.760002600 5.15388387674164 49.4085538769451 42.4773140061202 -85.5129959267575 1939723.733325 T 29 CATAB v2.0f-lin.ifort 2021-Apr-13 02:59:52 2021-Apr-13 02:59
2138-Mar-24 05:16 00:06 Jupiter 1.79188362635586 1.79188183930722 1.79188541340408 2.46243274822152 2.26233861759429 2502030.719720638 6.29295511071412 87.8893472638086 34.3822734570744 52.5564991321745 1634693.07445813 T 29 CATAB v2.0f-lin.ifort 2021-Apr-13 02:59:52 2021-Apr-13 02:59
2149-Oct-09 07:59 00:08 Jupiter 1.856365917477 1.85636347383496 1.85636836112057 2.64604537997745 2.46758916609544 2506247.832952762 7.51627418456809 157.730392937404 27.108930422988 58.9829295097492 2011244.34359056 T 29 CATAB v2.0f-lin.ifort 2021-Apr-13 02:59:52 2021-Apr-13 02:59
2161-Apr-11 05:17 00:09 Jupiter 1.94044837033925 1.94044531904696 1.9404514216385 2.91396266501765 2.76010164670284 2510449.719806305 8.73796650665211 248.013749977218 23.6205903990917 63.2698925652342 2436245.09751436 T 29 CATAB v2.0f-lin.ifort 2021-Apr-13 02:59:52 2021-Apr-13 02:59

Alternate Designations
 1999 PH1 = 1996 DO6 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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