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2325 Chernykh (1979 SP)
Classification: Main-belt Asteroid          SPK-ID: 2002325
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 40 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1764309045368622 3.4588e-08  
a 3.14015729915137 1.5094e-08 au
q 2.586136506474063 1.1e-07 au
i 1.920137162210238 4.3923e-06 deg
node 139.9335924145261 0.00011378 deg
peri 267.1926030142781 0.00011448 deg
M 99.1885955476787 1.2271e-05 deg
tp 2458640.504196506140
(2019-Jun-06.00419651)
6.8251e-05 TDB
period 2032.476497369941
5.56
1.4655e-05
4.012e-08
d
yr
n .1771238193729896 1.2771e-09 deg/d
Q 3.694178091828676 1.7757e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2584  
   data-arc span      23985 days (65.67 yr)  
   first obs. used      1955-05-22  
   last obs. used      2021-01-20  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .45229  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 01:02:04  

Additional Information
 Earth MOID = 1.59596 au 
 Jupiter MOID = 1.70091 au 
 T_jup = 3.185 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456711.5 (2014-Feb-23.0) TDB
Reference: JPL 40 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1718408555319487 3.4458e-08  
q 2.603249257758009 1.0889e-07 au
tp 2456609.699914649635
(2013-Nov-13.19991465)
6.9058e-05 TDB
node 139.9425822218125 0.00011394 deg
peri 267.8887286106678 0.00011468 deg
i 1.915767462615476 4.3881e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      2584  
   data-arc span      23985 days (65.67 yr)  
   first obs. used      1955-05-22  
   last obs. used      2021-01-20  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .45229  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 01:02:04  

Additional Information
 Jupiter MOID = 1.70091 au 
 T_jup = 3.185 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.18732637322452E-15 -3.727027690812962E-15 -3.841050221809021E-13 5.098327729608225E-17 -1.033149087283154E-13 -2.105707016267858E-16
q -3.727027690812962E-15 1.185655565223437E-14 1.14837230271365E-12 1.388267823098595E-16 3.14217210825042E-13 7.498152874908411E-16
tp -3.841050221809021E-13 1.14837230271365E-12 4.768978872274977E-9 -1.474870238909491E-11 9.13378894696869E-10 -2.822869949828799E-13
node 5.098327729608225E-17 1.388267823098595E-16 -1.474870238909491E-11 1.298170218767397E-8 -1.297691603818118E-8 8.462174449028139E-11
peri -1.033149087283154E-13 3.14217210825042E-13 9.13378894696869E-10 -1.297691603818118E-8 1.315068308682429E-8 -8.461909469604566E-11
i -2.105707016267858E-16 7.498152874908411E-16 -2.822869949828799E-13 8.462174449028139E-11 -8.461909469604566E-11 1.925556241516677E-11

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 12.01   n/a E2021B10  
diameter diameter 22.789 km 0.194 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.065   0.012 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

2325 Chernykh           Discovered 1979 Sept. 25 by A. Mrkos at the Klet Observatory.
Named in honor of Ludmila I. Chernykh and Nikolaj S. Chernykh, astronomers at the Crimean Astrophysical Observatory who lead the impressive program of observations and discoveries of minor planets there.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: MPC 6060Last Updated: 2006-03-21

[ show close-approach data ]
Alternate Designations
 1979 SP = 1957 UJ = 1959 CH = 1971 FR = 1974 WD1 = 1974 XN = 1979 UG3 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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