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JPL Small-Body Database Browser
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71001 Natspasoc (1999 XL37)
Classification: Main-belt Asteroid          SPK-ID: 2071001
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 30 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08544695201322275 3.748e-08  
a 2.612668858689625 1.5527e-08 au
q 2.389424268094731 1.0048e-07 au
i 15.44174144033323 4.9019e-06 deg
node 126.0793920168126 1.5133e-05 deg
peri 297.8721151387926 3.3531e-05 deg
M 214.7408805966379 3.1708e-05 deg
tp 2459222.894700807384
(2021-Jan-08.39470081)
0.00013774 TDB
period 1542.499315781147
4.22
1.3751e-05
3.765e-08
d
yr
n .2333874617102764 2.0805e-09 deg/d
Q 2.835913449284519 1.6854e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1223  
   data-arc span      7740 days (21.19 yr)  
   first obs. used      1998-06-26  
   last obs. used      2019-09-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .47281  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-24 02:39:31  

Additional Information
 Earth MOID = 1.4432 au 
 Jupiter MOID = 2.3937 au 
 T_jup = 3.353 
[ 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 13.7   n/a MPO436279  
diameter diameter 5.336 km 0.134 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 3.15 h n/a LCDB (Rev. 2019-January); 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:
[Kim, M.-J.; Choi, Y.-J.; Moon, H.-K.; Byun, Y.-I.; et al. (2014) Astron. J. 147, A56.]
geometric albedo albedo 0.271   0.055 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

71001 Natspasoc           Discovered 1999 Dec. 7 by C. W. Juels at Fountain Hills.
The National Space Society (NSS), an international space advocacy non-profit organization, was established in the United States on 1986 Mar. 8, from the merger of two space advocacy organizations, the National Space Institute, founded by Werner von Braun, and the L5 Society, based on the concepts of Gerard K. O'Neill.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20050407/MPCPages.arcLast Updated: 2005-04-15

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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