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17901 (1999 FT25)
Classification: Main-belt Asteroid          SPK-ID: 2017901
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.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 32 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07104044225926431 3.5116e-08  
a 2.702701498788654 1.2281e-08 au
q 2.510700389019931 9.4492e-08 au
i 2.867059882902881 4.3262e-06 deg
node 191.6547451722506 7.7053e-05 deg
peri 98.86005328805857 8.3258e-05 deg
M 185.9372323481102 3.263e-05 deg
tp 2459785.191475142207
(2022-Jul-24.69147514)
0.00014772 TDB
period 1622.914164022414
4.44
1.1062e-05
3.029e-08
d
yr
n .2218231918733985 1.5119e-09 deg/d
Q 2.894702608557376 1.3154e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1769  
   data-arc span      15388 days (42.13 yr)  
   first obs. used      1978-09-02  
   last obs. used      2020-10-19  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .49293  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 02:18:12  

Additional Information
 Earth MOID = 1.49651 au 
 Jupiter MOID = 2.21219 au 
 T_jup = 3.361 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456650.5 (2013-Dec-24.0) TDB
Reference: JPL 32 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07304494574400022 3.5196e-08  
q 2.504546756330761 9.4925e-08 au
tp 2456538.679154912531
(2013-Sep-03.17915491)
0.00014223 TDB
node 191.7038636024358 7.7168e-05 deg
peri 98.55051315242557 8.3034e-05 deg
i 2.863798231716631 4.3266e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1769  
   data-arc span      15388 days (42.13 yr)  
   first obs. used      1978-09-02  
   last obs. used      2020-10-19  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .49293  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 02:18:12  

Additional Information
 Jupiter MOID = 2.21219 au 
 T_jup = 3.361 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.238787574795452E-15 -3.317258539629982E-15 8.385549241099656E-13 -1.710884265773575E-16 1.708129331517921E-13 5.183898016764262E-16
q -3.317258539629982E-15 9.010662905918342E-15 -2.291354360400525E-12 1.364938019451576E-15 -4.676909533490237E-13 -1.303238394785525E-15
tp 8.385549241099656E-13 -2.291354360400525E-12 2.023002323992308E-8 6.138818613991098E-12 4.376067285483881E-9 1.134222306808538E-13
node -1.710884265773575E-16 1.364938019451576E-15 6.138818613991098E-12 5.954922663426756E-9 -5.945778338584464E-9 -3.274027083070669E-11
peri 1.708129331517921E-13 -4.676909533490237E-13 4.376067285483881E-9 -5.945778338584464E-9 6.894581433336276E-9 3.270997366464278E-11
i 5.183898016764262E-16 -1.303238394785525E-15 1.134222306808538E-13 -3.274027083070669E-11 3.270997366464278E-11 1.871932469612552E-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 13.9   n/a MPO365467  
rotation period rot_per 9.70 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Chang, C.-K.; Lin, H.-W.; Ip, W.-H.; Prince, T.A.; et al. (2016) Astrophys. J. Sup. Ser. 227, A20.]

17901 (1999 FT25)          Discovered 1999-Mar-19 by LINEAR at Socorro
Reference: 20001013/Numbers.arcLast Updated: 2004-04-19

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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
2098-Jan-31 04:45 00:03 Iris 0.00684896577284316 0.00684291834831006 0.00685504134777866 4.7274478948415 4.72744771729125 2487369.698215440 3.048984572609 762.550708918386 45.5304388219285 66.8951739917597 20694.9389608321 T 32 CATAB v2.0f-lin.ifort 2020-Nov-13 02:18:16 2020-Nov-13 02:18

Alternate Designations
 1999 FT25 = 1978 RV7 = 1987 SK18 = 2000 NW27 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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