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101340 (1998 TN4)
Classification: Main-belt Asteroid          SPK-ID: 2101340
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .02594771724260038 4.1367e-08  
a 2.839165217691851 2.0395e-08 au
q 2.765495361418157 1.2333e-07 au
i 1.343154745709451 6.3198e-06 deg
node 327.9314774764414 0.00016999 deg
peri 313.4617826609812 0.00021672 deg
M 310.2945195379356 0.00013545 deg
tp 2459441.760487500535
(2021-Aug-15.26048750)
0.00065708 TDB
period 1747.368191450844
4.78
1.8828e-05
5.155e-08
d
yr
n .2060241234568263 2.22e-09 deg/d
Q 2.912835073965545 2.0924e-08 au
  Orbit Determination Parameters
   # obs. used (total)      539  
   data-arc span      9745 days (26.68 yr)  
   first obs. used      1993-09-10  
   last obs. used      2020-05-16  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .54427  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 15:36:20  

Additional Information
 Earth MOID = 1.74736 au 
 Jupiter MOID = 2.10861 au 
 T_jup = 3.309 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.64   n/a E2021B55  
rotation period rot_per 5.75 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Result based on fragmentary lightcurve(s), may be completely wrong.
Published Reference List:
[Chang, C.-K.; Lin, H.-W.; Ip, W.-H.; Prince, T.A.; et al. (2016) Astrophys. J. Sup. Ser. 227, A20.]

101340 (1998 TN4)          Discovered 1998-Oct-13 by Spacewatch at Kitt Peak
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

Alternate Designations
 1998 TN4 = 2001 FN138 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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