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18276 (3355 T-3)
Classification: Main-belt Asteroid          SPK-ID: 2018276
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 26 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07582674365874956 3.836e-08  
a 2.794542222892547 1.6244e-08 au
q 2.582641186113722 1.047e-07 au
i 8.649089509711589 5.6541e-06 deg
node 202.24156850 2.459e-05 deg
peri 68.03013047651268 4.5711e-05 deg
M 188.9805100614048 4.0586e-05 deg
tp 2460011.101767919370
(2023-Mar-07.60176792)
0.00019485 TDB
period 1706.335555998621
4.67
1.4877e-05
4.073e-08
d
yr
n .2109784319587202 1.8395e-09 deg/d
Q 3.006443259671373 1.7475e-08 au
  Orbit Determination Parameters
   # obs. used (total)      988  
   data-arc span      15810 days (43.29 yr)  
   first obs. used      1977-10-07  
   last obs. used      2021-01-19  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .49372  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 02:25:59  

Additional Information
 Earth MOID = 1.58079 au 
 Jupiter MOID = 2.05808 au 
 T_jup = 3.307 
[ 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 14.8   n/a MPO449084  
rotation period rot_per 1.15 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 lower-limit; Incomplete or inconclusive result.
Published Reference List:
[Erasmus, N.; McNeill, A.; Mommert, M.; Trilling, D.E.; et al. (2018) Ap. J. Suppl. Series 237, A19.]
[Erasmus, N.; McNeill, A.; Mommert, N.; Trilling, D.E.; et al. (2019) Ap. J. Suppl. Series 242, A15.]

18276 (3355 T-3)          Discovered 1977-Oct-16 by van Houten, C. J., van Houten-Groeneveld, I., Gehrels, T. at Palomar
Reference: 20001013/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 3355 T-3 = 1991 TH10 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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