Skip Page Navigation
NASA JPL Caltech
NASA Logo - Jet Propulsion Laboratory + View the NASA Portal
+ Center for Near-Earth Object Studies
JPL Home Earth Solar System Stars & Galaxies Technology
JPL Solar System Dynamics
BODIES ORBITS EPHEMERIDES TOOLS PHYSICAL DATA DISCOVERY FAQ SITE MAP
IMPORTANT: The SSD Announcement email list is now available. Major changes are coming in the near future, including possible hostname and/or URL changes. To be notified of such changes, subscribe to this email list.

Please visit this page for more details.


JPL Small-Body Database Browser
Search: [ help ]  
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 37 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06547508567136812 3.2972e-08  
a 2.686770560863291 1.1066e-08 au
q 2.510854028211457 8.746e-08 au
i 5.92539452010273 3.6349e-06 deg
node 105.6268837835951 3.7176e-05 deg
peri 169.3716209145795 5.1023e-05 deg
M 231.3171228709187 3.7307e-05 deg
tp 2459575.493003329155
(2021-Dec-26.99300333)
0.00016781 TDB
period 1608.586051358314
4.40
9.9378e-06
2.721e-08
d
yr
n .2237990312647624 1.3826e-09 deg/d
Q 2.862687093515124 1.179e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2876  
   data-arc span      26972 days (73.85 yr)  
   first obs. used      1946-04-01  
   last obs. used      2020-02-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .44681  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-22 16:13:33  

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 ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2020-Mar-31 13:39 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin