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JPL Small-Body Database Browser
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15939 Fessenden (1997 YP8)
Classification: Main-belt Asteroid          SPK-ID: 2015939
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 32 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1184485457024341 4.0492e-08  
a 3.179339566319814 1.9452e-08 au
q 2.802751418395025 1.2882e-07 au
i 13.12350787178765 4.1901e-06 deg
node 106.9205753160661 1.8642e-05 deg
peri 114.9377704998028 2.5358e-05 deg
M 250.2353063584953 1.8837e-05 deg
tp 2459631.840962321845
(2022-Feb-21.34096232)
0.00011089 TDB
period 2070.636184511001
5.67
1.9003e-05
5.203e-08
d
yr
n .1738596102458324 1.5956e-09 deg/d
Q 3.555927714244604 2.1756e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1955  
   data-arc span      12078 days (33.07 yr)  
   first obs. used      1987-01-08  
   last obs. used      2020-02-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .458  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-22 21:31:08  

Additional Information
 Earth MOID = 1.82399 au 
 Jupiter MOID = 1.62524 au 
 T_jup = 3.148 
[ 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 12.4   n/a MPO452396  
diameter diameter 12.084 km 0.237 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.159   0.023 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

15939 Fessenden           Discovered 1997 Dec. 28 by Spacewatch at Kitt Peak.
Reginald Aubrey Fessenden (1866-1932) invented amplitude modulation as a means of transmitting sounds by radio. He was a professor at Purdue University and the University of Pittsburgh. The name was suggested by K. Ellis.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20050523/MPCPages.arcLast Updated: 2005-07-21

[ 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
1906-Oct-16 14:56 00:03 Jupiter 1.79426908839607 1.79426758072274 1.79427059608454 3.77612427942988 3.64896868276018 2417500.121971977 2.9326666487713 286.236012182525 17.6181426797894 -77.4455359945614 2650751.95603403 T 32 CATAB v2.0f-lin.ifort 2020-Feb-22 21:31:25 2020-Feb-22 21:31
1917-Aug-27 04:57 00:03 Jupiter 1.65249267777432 1.65249213663796 1.65249321891087 2.5797111873917 2.37271248845863 2421467.706137427 2.77023378535294 140.561592918697 43.0588144580242 86.6958244059277 958717.030399155 T 32 CATAB v2.0f-lin.ifort 2020-Feb-22 21:31:25 2020-Feb-22 21:31
1928-May-10 14:37 00:03 Jupiter 1.69983546713908 1.69983478258604 1.6998361517069 1.49424610793925 1.11183537420115 2425377.108876183 2.74514618928252 581.357952055507 90.2140460446607 75.4467622326039 2162613.15234448 T 32 CATAB v2.0f-lin.ifort 2020-Feb-22 21:31:25 2020-Feb-22 21:31
1939-Jan-22 00:51 00:02 Jupiter 1.83692928234457 1.83692849399589 1.83693007069481 3.29338229670609 3.15026209196827 2429285.535250611 2.01139573077393 138.302873363268 22.636523337496 -86.406095646587 2196954.09828032 T 32 CATAB v2.0f-lin.ifort 2020-Feb-22 21:31:25 2020-Feb-22 21:31
2037-Feb-14 13:31 < 00:01 Jupiter 1.72056078270216 1.72056035742911 1.72056120797551 3.57439855287147 3.43390974321359 2465104.063304407 0.695978795709302 88.1602002116027 16.6152559126073 -84.0987150794534 2948856.39685047 T 32 CATAB v2.0f-lin.ifort 2020-Feb-22 21:31:25 2020-Feb-22 21:31
2047-Dec-24 21:57 00:01 Jupiter 1.63242789184824 1.63242735800556 1.63242842569101 2.44758370412225 2.22551573457255 2469069.414863510 1.20125374728649 134.680415038053 36.0768354444042 -80.1114198231135 1901805.12414151 T 32 CATAB v2.0f-lin.ifort 2020-Feb-22 21:31:25 2020-Feb-22 21:31
2058-Aug-31 23:09 00:02 Jupiter 1.74201867653441 1.74201796920284 1.74201938387004 1.70155418740261 1.38665993063153 2472972.464729906 1.8729865882044 305.051635671175 36.9075942158471 72.021752625762 2440704.16720047 T 32 CATAB v2.0f-lin.ifort 2020-Feb-22 21:31:25 2020-Feb-22 21:31
2069-May-16 21:07 00:02 Jupiter 1.91021275818457 1.91021197320092 1.91021354316985 3.67239239901913 3.54959577233927 2476883.380146181 1.98751209343564 135.564829074776 23.0193945891613 -83.21439736792 2581461.8170643 T 32 CATAB v2.0f-lin.ifort 2020-Feb-22 21:31:25 2020-Feb-22 21:31
2156-Jul-10 10:02 00:04 Jupiter 1.91256774255426 1.91256523879989 1.91257024633558 4.11572079701883 4.00667117105502 2508713.918027538 3.93765119469299 388.435958803966 16.618228313407 -72.3940260640305 3311990.44096514 T 32 CATAB v2.0f-lin.ifort 2020-Feb-22 21:31:25 2020-Feb-22 21:31
2167-Jun-01 21:30 00:04 Jupiter 1.65055850923316 1.65055737801456 1.65055964048357 3.37685543560194 3.22130502791922 2512692.396175330 4.2437550942521 403.665280596092 17.2318048451163 -84.8749866663288 2315059.67658314 T 32 CATAB v2.0f-lin.ifort 2020-Feb-22 21:31:25 2020-Feb-22 21:31
2178-Apr-07 09:47 00:05 Jupiter 1.63854182493294 1.63854062547577 1.63854302440584 2.31268911873935 2.07717534724649 2516654.907331313 5.3165802061508 348.648222993013 64.1296441835654 -62.7076987145152 1441733.22636062 T 32 CATAB v2.0f-lin.ifort 2020-Feb-22 21:31:25 2020-Feb-22 21:31
2188-Dec-04 00:07 00:06 Jupiter 1.80130078757494 1.80129890681016 1.80130266839583 2.05925133868052 1.81660661048338 2520548.504885176 6.3902207567568 619.553586474785 16.677378207264 75.8043212859007 2651473.52732131 T 32 CATAB v2.0f-lin.ifort 2020-Feb-22 21:31:25 2020-Feb-22 21:31
2199-Aug-26 19:51 00:06 Jupiter 1.99618059743476 1.99617847734801 1.99618271754785 4.1546513868905 4.0512325255199 2524466.327397033 5.84283938955668 393.819956660741 23.5341934838971 -78.6829951275493 3028990.95667977 T 32 CATAB v2.0f-lin.ifort 2020-Feb-22 21:31:25 2020-Feb-22 21:31

Alternate Designations
 1997 YP8 = 1987 AV 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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