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1101 Clematis (1928 SJ)
Classification: Outer Main-belt Asteroid          SPK-ID: 2001101
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 40 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07956081221229926 3.4291e-08  
a 3.233992881419423 1.4376e-08 au
q 2.976693781084899 1.1587e-07 au
i 21.41033781599548 3.7351e-06 deg
node 201.8882568879554 9.9223e-06 deg
peri 106.4980333134766 2.6727e-05 deg
M 355.9534166507812 2.4191e-05 deg
tp 2459224.377728275604
(2021-Jan-09.87772828)
0.00014276 TDB
period 2124.256795767447
5.82
1.4164e-05
3.878e-08
d
yr
n .1694710360429563 1.13e-09 deg/d
Q 3.491291981753947 1.552e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2854  
   data-arc span      33679 days (92.21 yr)  
   first obs. used      1928-09-22  
   last obs. used      2020-12-07  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .42929  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-12 11:58:30  

Additional Information
 Earth MOID = 2.04333 au 
 Jupiter MOID = 1.78736 au 
 T_jup = 3.072 
[ 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 10.64   n/a MPCxxxxx  
diameter diameter 33.765 km 0.809 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
rotation period rot_per 34.3 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:
[Warner, B.D.; Stephens, R.D. (2010) Minor Planet Bull. 37, 73-74.]
geometric albedo albedo 0.127   0.019 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  

1101 Clematis (1928 SJ)          Discovered 1928-Sep-22 by Reinmuth, K. at Heidelberg
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 1928 SJ = 1928 WB = 1963 TG1 = 1969 TG1 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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