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22504 (1997 TD17)
Classification: Main-belt Asteroid          SPK-ID: 2022504
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 29 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1690169555056663 2.9304e-08  
a 2.30233515617217 6.099e-09 au
q 1.913201477522287 6.781e-08 au
i 5.574067063429461 2.8396e-06 deg
node 126.3991087869268 3.3922e-05 deg
peri 277.1266787571658 3.4973e-05 deg
M 210.7443929746686 9.3018e-06 deg
tp 2459729.528901682927
(2022-May-30.02890168)
3.3862e-05 TDB
period 1276.001675257203
3.49
5.0703e-06
1.388e-08
d
yr
n .2821312910325411 1.1211e-09 deg/d
Q 2.691468834822052 7.1299e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1717  
   data-arc span      9851 days (26.97 yr)  
   first obs. used      1993-07-23  
   last obs. used      2020-07-12  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .50958  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 04:07:05  

Additional Information
 Earth MOID = .930733 au 
 Jupiter MOID = 2.71022 au 
 T_jup = 3.565 
[ 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 14.92   n/a E2021B10  
diameter diameter 2.825 km 0.547 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 2.7597 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:
[Pal, A.; Szakats, R.; Kiss, C.; Bodi, A.; et al. (2019) Ap. J. Supl. Ser. 247, id.26.]
geometric albedo albedo 0.202   0.043 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

22504 (1997 TD17)          Discovered 1997-Oct-06 by Shimizu, Y., Urata, T. at Nachi-Katsuura
Reference: 20010309/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1997 TD17 = 1999 FD25 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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