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135316 (2001 SN277)
Classification: Main-belt Asteroid          SPK-ID: 2135316
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.


Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .141095255950088 5.7937e-08  
a 3.073706426369098 2.2585e-08 au
q 2.64002103142512 1.7574e-07 au
i 10.17775482377015 5.7554e-06 deg
node 323.2803084625256 2.5258e-05 deg
peri 55.1253946269373 3.1687e-05 deg
M 211.8923504135951 1.8875e-05 deg
tp 2460010.279901843677
(2023-Mar-06.77990184)
0.00010733 TDB
period 1968.303227266143
5.39
2.1694e-05
5.939e-08
d
yr
n .1828986484465703 2.0158e-09 deg/d
Q 3.507391821313076 2.5771e-08 au
  Orbit Determination Parameters
   # obs. used (total)      744  
   data-arc span      8113 days (22.21 yr)  
   first obs. used      1998-03-01  
   last obs. used      2020-05-17  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .52581  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 18:12:27  

Additional Information
 Earth MOID = 1.65522 au 
 Jupiter MOID = 2.04805 au 
 T_jup = 3.191 
[ 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 14.58   n/a MPCxxxxx  
rotation period rot_per 6.36 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.; Ip, W.-H.; Lin, H.-W.; Cheng, Y.C.; et al. (2015) Astrophys. J. Supp. Ser. 219, A27.]

135316 (2001 SN277)          Discovered 2001-Sep-21 by LONEOS at Anderson Mesa
Reference: 20060907/Numbers.arcLast Updated: 2006-09-10

[ show close-approach data ]
Alternate Designations
 2001 SN277 = 1998 EY7 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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