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30821 Chernetenko (1990 RR17)
Classification: Main-belt Asteroid          SPK-ID: 2030821
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 33 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2038060671253132 2.9903e-08  
a 2.313157216063575 6.5036e-09 au
q 1.841721741215119 7.0566e-08 au
i 4.276799889197593 2.9425e-06 deg
node 270.0407758625208 4.3837e-05 deg
peri 53.8669075919513 4.4295e-05 deg
M 298.8146435048508 7.6143e-06 deg
tp 2459614.899252419028
(2022-Feb-04.39925242)
2.7469e-05 TDB
period 1285.008952707229
3.52
5.4193e-06
1.484e-08
d
yr
n .2801536901681189 1.1815e-09 deg/d
Q 2.784592690912031 7.829e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2046  
   data-arc span      16291 days (44.60 yr)  
   first obs. used      1976-11-18  
   last obs. used      2021-06-26  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .46784  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 06:46:13  

Additional Information
 Earth MOID = .832617 au 
 Jupiter MOID = 2.54657 au 
 T_jup = 3.551 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457488.5 (2016-Apr-10.0) TDB
Reference: JPL 33 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2044554129935701 2.9954e-08  
q 1.840085699226538 7.0708e-08 au
tp 2457043.309845954609
(2015-Jan-20.80984595)
2.5799e-05 TDB
node 270.1606070599015 4.3859e-05 deg
peri 53.56307434133922 4.4311e-05 deg
i 4.275808524551383 2.9424e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      2046  
   data-arc span      16291 days (44.60 yr)  
   first obs. used      1976-11-18  
   last obs. used      2021-06-26  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .46784  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 06:46:13  

Additional Information
 Jupiter MOID = 2.54657 au 
 T_jup = 3.551 
Orbit Covariance (6×6)
  e q tp node peri i
e 8.972177403140246E-16 -2.112602191272995E-15 1.064918809685285E-13 2.945747483184145E-15 3.280123251857177E-14 -7.462678683429883E-16
q -2.112602191272995E-15 4.999620156624488E-15 -2.552644837809937E-13 -6.580021825445502E-15 -7.638296050360237E-14 1.835309118845702E-15
tp 1.064918809685285E-13 -2.552644837809937E-13 6.655739835668219E-10 1.151694261396866E-11 1.746038194598316E-10 2.199807217736505E-13
node 2.945747483184145E-15 -6.580021825445502E-15 1.151694261396866E-11 1.923651373590189E-9 -1.914831754621634E-9 9.279544732584179E-12
peri 3.280123251857177E-14 -7.638296050360237E-14 1.746038194598316E-10 -1.914831754621634E-9 1.963480782436826E-9 -9.194084139701188E-12
i -7.462678683429883E-16 1.835309118845702E-15 2.199807217736505E-13 9.279544732584179E-12 -9.194084139701188E-12 8.657549962302221E-12

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.46   n/a E2021B10  
diameter diameter 3.608 km 0.166 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 17.603 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Erasmus, N.; Navarro-Meza, S.; McNeill, A.; Trilling, D.E.; et al. (2020) Ap. J. Suppl. Ser. 247, A13.]
geometric albedo albedo 0.283   0.059 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

30821 Chernetenko           Discovered 1990 Sept. 15 by L. V. Zhuravleva at the Crimean Astrophysical Observatory.
Yuliya Andreevna Chernetenko (b. 1946) is well known for her investigation of the motion of Comet 2P/Encke. More recently she has established systematic effects in the Hipparcos and other star catalogues using positions of selected minor planets.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20060809/MPCPages.arcLast Updated: 2007-08-08

Alternate Designations
 1990 RR17 = 1976 WV = 1990 UF12 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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