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 ]  
57424 Caelumnoctu (2001 SP22)
Classification: Main-belt Asteroid          SPK-ID: 2057424
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 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09477191909631029 5.0216e-08  
a 3.034898099513415 2.011e-08 au
q 2.747274982360784 1.4802e-07 au
i 9.672681273767909 5.5396e-06 deg
node 353.303568643246 2.7302e-05 deg
peri 45.472794283727 3.9323e-05 deg
M 161.7407983055607 2.6757e-05 deg
tp 2458132.875756080311
(2018-Jan-14.37575608)
0.00014252 TDB
period 1931.143725536747
5.29
1.9194e-05
5.255e-08
d
yr
n .1864180253595266 1.8529e-09 deg/d
Q 3.322521216666047 2.2016e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1267  
   data-arc span      13876 days (37.99 yr)  
   first obs. used      1982-01-26  
   last obs. used      2020-01-23  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .48993  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 12:09:11  

Additional Information
 Earth MOID = 1.7635 au 
 Jupiter MOID = 2.1118 au 
 T_jup = 3.213 
[ 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 13.8   n/a MPO436184  
diameter diameter 6.876 km 0.356 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.113   0.019 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

57424 Caelumnoctu           Discovered 2001 Sept. 16 by the Lincoln Laboratory Near-Earth Asteroid Research Team at Socorro.
The number of this minor planet signifies the date, 1957 Apr. 24, of the transmission of the first edition of the BBC television series The Sky at Night. Caelum noctu in Latin, this monthly astronomy series has been hosted by Patrick Moore now for half a century, a record for any television series in the world.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20070402/MPCPages.arcLast Updated: 2007-07-05

Alternate Designations
 2001 SP22 = 1982 BV4 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2020-Mar-28 23:33 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin