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2977 Chivilikhin (1974 SP)
Classification: Main-belt Asteroid          SPK-ID: 2002977
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 37 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1708327723777859 3.5582e-08  
a 2.785939434463836 1.1835e-08 au
q 2.310009677197778 1.0081e-07 au
i 9.587346481982813 3.9786e-06 deg
node 170.4422025568747 2.0263e-05 deg
peri 184.7280711686211 2.2465e-05 deg
M 300.5253873167154 1.098e-05 deg
tp 2459281.098312376709
(2021-Mar-07.59831238)
5.2568e-05 TDB
period 1698.462384169604
4.65
1.0823e-05
2.963e-08
d
yr
n .2119564162005318 1.3506e-09 deg/d
Q 3.261869191729894 1.3857e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2354  
   data-arc span      16855 days (46.15 yr)  
   first obs. used      1974-09-19  
   last obs. used      2020-11-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .44121  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Dec-18 02:09:21  

Additional Information
 Earth MOID = 1.30537 au 
 Jupiter MOID = 2.1831 au 
 T_jup = 3.290 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456877.5 (2014-Aug-08.0) TDB
Reference: JPL 37 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1713871418400509 3.552e-08  
q 2.305825070659911 1.0042e-07 au
tp 2457587.822412181117
(2016-Jul-18.32241218)
4.8831e-05 TDB
node 170.5189855599874 2.0264e-05 deg
peri 185.4120625296476 2.2463e-05 deg
i 9.590380368685118 3.9802e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      2354  
   data-arc span      16855 days (46.15 yr)  
   first obs. used      1974-09-19  
   last obs. used      2020-11-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .44121  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Dec-18 02:09:21  

Additional Information
 Jupiter MOID = 2.1831 au 
 T_jup = 3.290 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.261663932519678E-15 -3.55019941054412E-15 -2.990178034694224E-14 -1.796902401208559E-16 1.012149974379136E-14 5.26370208841516E-16
q -3.55019941054412E-15 1.008508394435856E-14 1.917046127223267E-13 5.534841958609805E-16 -1.7233969709853E-14 -9.323243138189275E-16
tp -2.990178034694224E-14 1.917046127223267E-13 2.384456340042298E-9 -5.159810992917414E-12 4.829536817587235E-10 1.576422735245012E-12
node -1.796902401208559E-16 5.534841958609805E-16 -5.159810992917414E-12 4.106227011387165E-10 -4.055221021304618E-10 6.792531615392053E-12
peri 1.012149974379136E-14 -1.7233969709853E-14 4.829536817587235E-10 -4.055221021304618E-10 5.045814425951059E-10 -6.380768328678555E-12
i 5.26370208841516E-16 -9.323243138189275E-16 1.576422735245012E-12 6.792531615392053E-12 -6.380768328678555E-12 1.584180944629491E-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 12.6   n/a MPO473806  
diameter diameter 9.050 km 0.097 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 6.2574 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Published Reference List:
[Washburn, K.; Ditteon, R. (2017) Minor Planet Bull. 44, 184-185.]
geometric albedo albedo 0.179   0.019 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
SMASSII spectral type spec_B S   n/a EAR-A-5-DDR-TAXONOMY-V4.0 based on a high-resolution spectrum by Xu et al. (1995) or Bus and Binzel (2002)

2977 Chivilikhin (1974 SP)          Discovered 1974-Sep-19 by Chernykh, L. at Nauchnyj
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 1974 SP = 1977 EG2 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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