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85601 (1998 FU121)
Classification: Outer Main-belt Asteroid          SPK-ID: 2085601
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ hide orbit diagram ]

For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 28 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1550087553119881 3.8837e-08  
a 3.200942506991649 2.1541e-08 au
q 2.704768393157639 1.2576e-07 au
i 1.555336041084435 5.1049e-06 deg
node 54.7808628866935 0.00016343 deg
peri 52.69648058080036 0.00016428 deg
M 20.21853956969199 1.721e-05 deg
tp 2458883.020383802204
(2020-Feb-03.52038380)		 9.9507e-05 TDB
period 2091.776296968759
5.73		 2.1115e-05
5.781e-08		 d
yr
n .1721025333931187 1.7373e-09 deg/d
Q 3.697116620825659 2.488e-08 au
   Orbit Determination Parameters
   # obs. used (total)      940  
   data-arc span      8081 days (22.12 yr)  
   first obs. used      1998-03-20  
   last obs. used      2020-05-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5401  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 21:00:26  

Additional Information
 Earth MOID = 1.72192 au 
 Jupiter MOID = 1.43569 au 
 T_jup = 3.175 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456458.5 (2013-Jun-15.0) TDB
Reference: JPL 28 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1553184946112882 3.89e-08  
q 2.701874856767338 1.2588e-07 au
tp 2456798.810214190803
(2014-May-21.31021419)		 9.2703e-05 TDB
node 54.85497234459568 0.00016316 deg
peri 53.87041259093615 0.000164 deg
i 1.557112891806467 5.1093e-06 deg
   Orbit Determination Parameters
   # obs. used (total)      940  
   data-arc span      8081 days (22.12 yr)  
   first obs. used      1998-03-20  
   last obs. used      2020-05-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5401  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 21:00:26  

Additional Information
 Jupiter MOID = 1.43569 au 
 T_jup = 3.175 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.513224881698861E-15 -4.846795386090654E-15 -4.247659546629187E-13 -2.139626850090413E-15 -7.257942507808184E-14 -1.384930661397122E-16
q -4.846795386090654E-15 1.584646773169531E-14 1.659180294303164E-12 6.102989902393831E-15 2.734995131134307E-13 5.643430702903809E-16
tp -4.247659546629187E-13 1.659180294303164E-12 8.593803866447805E-9 6.667818708261801E-12 1.562517811595786E-9 -2.801561113548612E-13
node -2.139626850090413E-15 6.102989902393831E-15 6.667818708261801E-12 2.662020848240736E-8 -2.660857547533257E-8 -4.382422598553755E-11
peri -7.257942507808184E-14 2.734995131134307E-13 1.562517811595786E-9 -2.660857547533257E-8 2.689583235914783E-8 4.374743766203942E-11
i -1.384930661397122E-16 5.643430702903809E-16 -2.801561113548612E-13 -4.382422598553755E-11 4.374743766203942E-11 2.61049680471449E-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 14.6   n/a MPO459396  
diameter diameter 6.716 km 0.305 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.039   0.003 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

85601 (1998 FU121)          Discovered 1998-Mar-20 by LINEAR at Socorro
Reference: 20040830/Numbers.arcLast Updated: 2004-09-06

[ 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
1901-Sep-07 15:57 00:04 Jupiter 1.59590685675396 1.59590596101522 1.59590775249289 1.77268840169788 1.44254306563637 2415635.164696852 3.81107410972924 103.114525336114 28.5599054614393 82.1341789883801 2151662.40240285 T 28 CATAB v2.0f-lin.ifort 2020-Nov-12 21:00:28 2020-Nov-12 21:00
1913-Feb-15 22:01 00:03 Jupiter 1.66071900097291 1.66071780708401 1.6607201948604 1.90917785163401 1.62015210362371 2419814.417108123 3.21194714092281 59.3180866111447 17.4654019141111 83.4352468504364 1204140.68032754 T 28 CATAB v2.0f-lin.ifort 2020-Nov-12 21:00:28 2020-Nov-12 21:00
1924-Jul-10 12:32 00:03 Jupiter 1.76982900648682 1.76982768326857 1.76983032970397 2.20769178182913 1.97907123299068 2423977.021985800 2.76619400402434 57.1578112537011 13.5462023977375 79.344788877402 1176956.10931481 T 28 CATAB v2.0f-lin.ifort 2020-Nov-12 21:00:28 2020-Nov-12 21:00
1935-Nov-14 05:45 00:02 Jupiter 1.90816330887386 1.90816201697999 1.90816460076762 2.65886774672539 2.48632045591608 2428120.739259586 2.37177787732563 74.5590243812835 22.1014855356855 65.6340696152718 1603564.33954963 T 28 CATAB v2.0f-lin.ifort 2020-Nov-12 21:00:28 2020-Nov-12 21:00
2059-Feb-27 23:49 00:01 Jupiter 1.95744545011889 1.95744469898423 1.95744620125354 3.8827468663785 3.76965337650975 2473152.492644971 1.34106381144415 59.3751495745353 26.5692730812072 72.410421961528 2409776.43139284 T 28 CATAB v2.0f-lin.ifort 2020-Nov-12 21:00:28 2020-Nov-12 21:00
2070-May-11 02:23 00:02 Jupiter 1.77119256025202 1.77119172158072 1.77119339892341 2.95138935418521 2.78464646721892 2477242.599437615 1.70084413895576 78.4261407154385 20.5741609061735 79.5041459780817 1930724.93018781 T 28 CATAB v2.0f-lin.ifort 2020-Nov-12 21:00:28 2020-Nov-12 21:00
2081-Aug-18 14:25 00:02 Jupiter 1.63137808974541 1.63137731682084 1.63137886266998 2.28155994719729 2.04134815572611 2481360.100655280 2.05459980275879 93.4208052493704 5.18111290623593 -88.116827027543 1706327.63365931 T 28 CATAB v2.0f-lin.ifort 2020-Nov-12 21:00:28 2020-Nov-12 21:00
2092-Dec-29 20:21 00:02 Jupiter 1.55112061421147 1.55112005260925 1.55112117581352 1.90217179907447 1.58937562227273 2485511.348112266 2.46549590738526 112.969810446902 31.0728068792296 -76.1730600523105 1755931.01159509 T 28 CATAB v2.0f-lin.ifort 2020-Nov-12 21:00:28 2020-Nov-12 21:00
2104-Jun-07 22:25 00:03 Jupiter 1.52791852648276 1.52791815860218 1.52791889436317 1.74503272291853 1.39155016866118 2489688.433962703 3.05594185814944 140.327297131179 46.7520159025057 -75.2561084254301 2206741.34069435 T 28 CATAB v2.0f-lin.ifort 2020-Nov-12 21:00:28 2020-Nov-12 21:00
2115-Nov-26 16:03 00:04 Jupiter 1.5455407687089 1.54554001142306 1.54554152599781 1.72953357889127 1.37666290994874 2493877.168786335 3.93230245390011 157.476449998329 39.8772586498055 -85.1166437728734 2640551.82688762 T 28 CATAB v2.0f-lin.ifort 2020-Nov-12 21:00:28 2020-Nov-12 21:00
2127-May-09 21:13 00:05 Jupiter 1.60252133564869 1.60251966854325 1.60252300275431 1.8417146151433 1.52800537080752 2498059.384211097 5.11456007177101 132.235860431782 22.7902264261153 88.8495025948585 1861833.69121419 T 28 CATAB v2.0f-lin.ifort 2020-Nov-12 21:00:28 2020-Nov-12 21:00
2138-Oct-03 05:40 00:06 Jupiter 1.70849595739773 1.70849315772569 1.70849875706492 2.12454972158664 1.87674446657429 2502223.736144390 6.47217102546674 68.1877656366359 33.0071174313122 -66.7175644317293 671017.007488544 T 28 CATAB v2.0f-lin.ifort 2020-Nov-12 21:00:28 2020-Nov-12 21:00
2150-Feb-02 10:08 00:08 Jupiter 1.85860544099145 1.85860163891598 1.85860924306247 2.60351293035259 2.42215179142129 2506363.922279513 7.75611319059383 134.249513457394 39.2669218569728 32.759963006384 710415.948789829 T 28 CATAB v2.0f-lin.ifort 2020-Nov-12 21:00:28 2020-Nov-12 21:00
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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