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 ]  
52231 Sitnik (1978 RX1)
Classification: Main-belt Asteroid          SPK-ID: 2052231
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 39 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2069347968873284 1.2325e-08  
a 2.236791297664785 5.7188e-09 au
q 1.773921344803179 2.7124e-08 au
i 3.970004223737765 4.4248e-07 deg
node 137.6083327054188 8.5061e-06 deg
peri 221.1959559963734 1.0143e-05 deg
M 225.3031917899177 4.1865e-06 deg
tp 2459657.684425766269
(2022-Mar-19.18442577)
1.5105e-05 TDB
period 1221.90269734645
3.35
4.686e-06
1.283e-08
d
yr
n .2946224775358918 1.1299e-09 deg/d
Q 2.69966125052639 6.9022e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2090  
   data-arc span      15543 days (42.55 yr)  
   first obs. used      1978-09-01  
   last obs. used      2021-03-22  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .49067  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-04 06:17:30  

Additional Information
 Earth MOID = .770635 au 
 Jupiter MOID = 2.74996 au 
 T_jup = 3.606 
[ 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 14.47   n/a E2021B10  
diameter diameter 2.621 km 0.417 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2016AJ....152...63N)  
geometric albedo albedo 0.356   0.134 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

52231 Sitnik           Discovered 1978 Sept. 5 by N. S. Chernykh at the Crimean Astrophysical Observatory.
Grigorij Fedorovich Sitnik (1911-1996), professor of the Moscow State University, was one of the leading experts in the field of solar physics, absolute measurements of radiation fluxes and atmospheric optics. While working in Russia and overseas, he trained generations of astronomers.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20120406/MPCPages.arcLast Updated: 2012-04-09

Alternate Designations
 1978 RX1 = 1988 PJ2 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2021-Jun-19 01:33 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin