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
JPL Small-Body Database Browser
Search: [ help ]  
22253 Sivers (1978 SU7)
Classification: Main-belt Asteroid          SPK-ID: 2022253
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 42 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .183847164564033 1.1648e-08  
a 2.569990787818674 1.1893e-08 au
q 2.097505268522525 2.8569e-08 au
i 15.23598001254259 1.001e-06 deg
node 1.734546918758889 1.5784e-06 deg
peri 290.2417470117135 6.7595e-06 deg
M 150.3536934803394 6.3926e-06 deg
tp 2458571.996968004123
(2019-Mar-29.49696800)
2.4438e-05 TDB
period 1504.858884947193
4.12
1.0446e-05
2.86e-08
d
yr
n .2392250885455169 1.6605e-09 deg/d
Q 3.042476307114823 1.4079e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2098  
   data-arc span      15481 days (42.38 yr)  
   first obs. used      1978-09-26  
   last obs. used      2021-02-13  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .42987  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 04:02:52  

Additional Information
 Earth MOID = 1.13547 au 
 Jupiter MOID = 2.38889 au 
 T_jup = 3.358 
[ 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 13.51   n/a E2021B10  
diameter diameter 5.399 km 0.118 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
geometric albedo albedo 0.234   0.064 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

22253 Sivers           Discovered 1978 Sept. 26 by L. V. Zhuravleva at the Crimean Astrophysical Observatory.
Yakov Efimovich Sivers (1731-1808) was an outstanding Russian statesman, governor of Novgorod province. As the founder and director of the Waterways Communications Department he made an invaluable contribution to navigation in Russia. In particular, he reconstructed the old canals between the Volga and Neva rivers.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20090409/MPCPages.arcLast Updated: 2009-04-10

[ show close-approach data ]
Alternate Designations
 1978 SU7 = 1982 SK10 = 1990 RW10 = 2000 AC248 = 2001 AZ37 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2021-Apr-18 21:51 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin