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2138 Swissair (1968 HB)
Classification: Main-belt Asteroid          SPK-ID: 2002138
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 39 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06547508402795582 3.2612e-08  
a 2.68677056008054 1.0836e-08 au
q 2.510854031895429 8.677e-08 au
i 5.925394297121043 3.6041e-06 deg
node 105.6268864402769 3.5896e-05 deg
peri 169.3716194460411 4.9841e-05 deg
M 231.3171220474468 3.7074e-05 deg
tp 2459575.493006757397
(2021-Dec-26.99300676)
0.00016686 TDB
period 1608.586050655358
4.40
9.7312e-06
2.664e-08
d
yr
n .2237990313625632 1.3539e-09 deg/d
Q 2.862687088265652 1.1545e-08 au
  Orbit Determination Parameters
   # obs. used (total)      3086  
   data-arc span      27092 days (74.17 yr)  
   first obs. used      1946-04-01  
   last obs. used      2020-06-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .44044  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jun-23 15:41:26  

Additional Information
 Earth MOID = 1.49473 au 
 Jupiter MOID = 2.2098 au 
 T_jup = 3.363 
[ 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 11.5   n/a MPO319109  
diameter diameter 15.328 km 0.481 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
geometric albedo albedo 0.207   0.012 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  

2138 Swissair           Discovered 1968 Apr. 17 by P. Wild at Zimmerwald.
Named for the Swiss national airline, the international designation of which is HB.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: MPC 5360Last Updated: 2006-03-21

Alternate Designations
 1968 HB = 1938 OH = 1942 JD = 1946 GA = 1977 KE = 2016 FV5 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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