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12285 (1991 FN2)
Classification: Main-belt Asteroid          SPK-ID: 2012285
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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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 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 32 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1017100481196054 3.5287e-08  
a 2.997912739263722 1.427e-08 au
q 2.69299489029483 1.1184e-07 au
i 3.817794665195157 3.5796e-06 deg
node 157.4688260356581 4.9383e-05 deg
peri 335.6071124410244 5.2694e-05 deg
M 329.9795397961361 1.9104e-05 deg
tp 2459554.603597888247
(2021-Dec-06.10359789)
0.00010094 TDB
period 1895.950123790682
5.19
1.3537e-05
3.706e-08
d
yr
n .1898784126663793 1.3557e-09 deg/d
Q 3.302830588232613 1.5721e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1846  
   data-arc span      11897 days (32.57 yr)  
   first obs. used      1988-09-14  
   last obs. used      2021-04-11  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .48668  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 16:45:14  

Additional Information
 Earth MOID = 1.70839 au 
 Jupiter MOID = 1.72731 au 
 T_jup = 3.243 
[ 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 13.80   n/a MPCxxxxx  

12285 (1991 FN2)          Discovered 1991-Mar-20 by Debehogne, H. at La Silla
Reference: 19991123/Numbers.arcLast Updated: 2004-04-19

[ 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
1916-Jun-21 06:40 00:02 Jupiter 1.8946978993808 1.89469694310112 1.89469885566242 3.15473616705597 3.00969476690641 2421035.777967227 2.20422112439564 119.427979458268 11.5236458470026 74.182452333285 3316938.84938446 T 32 CATAB v2.0g-lin.ifort 2021-Jul-08 16:45:32 2021-Jul-08 16:45
1925-May-29 09:59 00:02 Jupiter 1.94939756343989 1.94939662196745 1.94939850491211 2.66408188910527 2.49566079454274 2424299.915952410 1.98218950180185 41.3180038869913 23.1851154770685 -59.0452848586164 1819328.73756633 T 32 CATAB v2.0g-lin.ifort 2021-Jul-08 16:45:32 2021-Jul-08 16:45
1962-Jul-17 22:24 00:01 Jupiter 1.74164278596049 1.74164244970467 1.74164312221621 2.32100842980779 2.10104958663575 2437863.433152883 1.19624601350314 74.1048257365902 9.039264037683 -87.954613863229 3028584.49122571 T 32 CATAB v2.0g-lin.ifort 2021-Jul-08 16:45:32 2021-Jul-08 16:45
1999-Aug-31 03:40 < 00:01 Jupiter 1.91065553095424 1.91065514158089 1.91065592032759 3.21943904803066 3.07866164390672 2451421.653007590 0.381777852486436 32.534799141615 11.922885842627 76.0788923481546 3624904.47388606 T 32 CATAB v2.0g-lin.ifort 2021-Jul-08 16:45:32 2021-Jul-08 16:45
2008-Aug-08 20:24 < 00:01 Jupiter 1.91985519502449 1.91985489381487 1.91985549623411 2.59904713471851 2.4233580717999 2454687.350046845 0.225817789117655 36.1248181122322 6.18909900927715 -83.1299262354268 4010992.91082697 T 32 CATAB v2.0g-lin.ifort 2021-Jul-08 16:45:32 2021-Jul-08 16:45
2045-Sep-26 09:53 < 00:01 Jupiter 1.74397270162222 1.74397236559623 1.74397303764811 2.36260036665485 2.1472096304624 2468249.911751780 0.69600540273389 50.9815422343571 8.97958233501771 89.8992093990632 2921504.65885226 T 32 CATAB v2.0g-lin.ifort 2021-Jul-08 16:45:32 2021-Jul-08 16:45
2082-Nov-11 00:38 00:01 Jupiter 1.93595534404591 1.93595470074709 1.93595598734528 3.31349062805498 3.178706765821 2481809.526404586 1.46417493103725 72.2299868878301 12.114742892799 73.2325731818872 3486893.3518646 T 32 CATAB v2.0g-lin.ifort 2021-Jul-08 16:45:32 2021-Jul-08 16:45
2091-Oct-20 17:00 00:02 Jupiter 1.89372877946061 1.89372812984407 1.89372942907725 2.54728196930114 2.36518290642681 2485075.208474293 1.74131299224498 51.7451369420381 14.008999244683 -69.1300460529132 3337894.30627425 T 32 CATAB v2.0g-lin.ifort 2021-Jul-08 16:45:32 2021-Jul-08 16:45
2128-Dec-07 11:56 00:03 Jupiter 1.73546140872996 1.73546102933445 1.73546178812644 2.37523730732793 2.16000394342414 2498636.997361743 2.55157876416153 149.010191701253 9.54270475307789 -87.8839300322324 2895561.49366549 T 32 CATAB v2.0g-lin.ifort 2021-Jul-08 16:45:32 2021-Jul-08 16:45
2166-Jan-20 16:04 00:03 Jupiter 1.95951520247857 1.95951381631071 1.95951658864944 3.39648107049143 3.26673554813891 2512195.169552517 3.27044884501082 147.029958430249 12.8761637112253 69.1244177562206 3423238.95024369 T 32 CATAB v2.0g-lin.ifort 2021-Jul-08 16:45:32 2021-Jul-08 16:45
2174-Dec-31 10:57 00:04 Jupiter 1.8749938864096 1.87499259529455 1.87499517752551 2.52018908498465 2.3340649947297 2515461.956272693 3.60566981480042 101.782603501174 14.4627658561602 -65.2765967089665 3038522.1310629 T 32 CATAB v2.0g-lin.ifort 2021-Jul-08 16:45:32 2021-Jul-08 16:45

Alternate Designations
 1991 FN2 = 1988 RL11 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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