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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 ]

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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 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 37 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07105718524589501 3.206e-08  
a 2.702506088012314 1.1095e-08 au
q 2.510473612288263 8.8237e-08 au
i 2.86732660352195 4.2584e-06 deg
node 191.6456252786014 7.0172e-05 deg
peri 98.98434241084892 7.6824e-05 deg
M 230.1742826852062 3.2613e-05 deg
tp 2459785.703181329567
(2022-Jul-25.20318133)
0.0001475 TDB
period 1622.738157246735
4.44
9.9935e-06
2.736e-08
d
yr
n .2218472514449307 1.3662e-09 deg/d
Q 2.894538563736364 1.1884e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1955  
   data-arc span      15544 days (42.56 yr)  
   first obs. used      1978-09-02  
   last obs. used      2021-03-24  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .48088  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-04 02:38:09  

Additional Information
 Earth MOID = 1.49435 au 
 Jupiter MOID = 2.21164 au 
 T_jup = 3.361 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457015.5 (2014-Dec-24.0) TDB
Reference: JPL 37 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07295167615193804 3.2082e-08  
q 2.504091406980106 8.8455e-08 au
tp 2456537.836552156609
(2013-Sep-02.33655216)
0.00014207 TDB
node 191.7010823951846 7.0275e-05 deg
peri 98.33765834757368 7.6604e-05 deg
i 2.864313052508883 4.2593e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1955  
   data-arc span      15544 days (42.56 yr)  
   first obs. used      1978-09-02  
   last obs. used      2021-03-24  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .48088  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-04 02:38:09  

Additional Information
 Jupiter MOID = 2.21164 au 
 T_jup = 3.361 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.029230680366945E-15 -2.81898116426776E-15 9.68646710299404E-13 1.235542245904674E-15 2.11948013934343E-13 4.13261674400773E-16
q -2.81898116426776E-15 7.824351007225908E-15 -2.598638503031924E-12 -2.576952859409437E-15 -5.643073525427219E-13 -1.058730223663854E-15
tp 9.68646710299404E-13 -2.598638503031924E-12 2.018461135586106E-8 2.169336048635528E-11 4.344064768719561E-9 6.295176168341127E-13
node 1.235542245904674E-15 -2.576952859409437E-15 2.169336048635528E-11 4.938622007840816E-9 -4.9273799510625E-9 -5.5471475208231E-11
peri 2.11948013934343E-13 -5.643073525427219E-13 4.344064768719561E-9 -4.9273799510625E-9 5.868114292920667E-9 5.553501384008132E-11
i 4.13261674400773E-16 -1.058730223663854E-15 6.295176168341127E-13 -5.5471475208231E-11 5.553501384008132E-11 1.814189245613891E-11

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 13.93   n/a MPCxxxxx  
rotation period rot_per 9.70 h n/a LCDB (Rev. 2020-October); 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

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