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216388 (2008 CU75)
Classification: Main-belt Asteroid          SPK-ID: 2216388
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 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .01520284470374436 3.9709e-08  
a 2.874716299028038 2.1757e-08 au
q 2.831012433566592 1.1643e-07 au
i 7.025518025859769 4.3592e-06 deg
node 96.53995458885157 3.6419e-05 deg
peri 32.94681844284546 0.00018125 deg
M 272.2457216513703 0.00018047 deg
tp 2459830.467006373467
(2022-Sep-07.96700637)
0.00089399 TDB
period 1780.290661998109
4.87
2.0211e-05
5.533e-08
d
yr
n .2022141708006006 2.2956e-09 deg/d
Q 2.918420164489484 2.2088e-08 au
  Orbit Determination Parameters
   # obs. used (total)      367  
   data-arc span      6914 days (18.93 yr)  
   first obs. used      2001-11-11  
   last obs. used      2020-10-16  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .48886  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 23:54:37  

Additional Information
 Earth MOID = 1.84976 au 
 Jupiter MOID = 2.09037 au 
 T_jup = 3.285 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457691.5 (2016-Oct-30.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .01325229274821098 3.8396e-08  
q 2.838318205932452 1.1372e-07 au
tp 2457994.341822661076
(2017-Aug-28.84182266)
0.0010412 TDB
node 96.57809476788718 3.6451e-05 deg
peri 21.99724916534689 0.00021157 deg
i 7.021978980098079 4.3553e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      367  
   data-arc span      6914 days (18.93 yr)  
   first obs. used      2001-11-11  
   last obs. used      2020-10-16  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .48886  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 23:54:37  

Additional Information
 Jupiter MOID = 2.09037 au 
 T_jup = 3.285 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.474269674830972E-15 -4.286098310835146E-15 2.280330425631768E-12 -4.312300924811736E-15 4.677634675944264E-13 2.082408361622904E-15
q -4.286098310835146E-15 1.293176099326227E-14 1.699274398296029E-13 1.115709282139738E-14 -1.477288722757124E-14 -5.390329969975221E-15
tp 2.280330425631768E-12 1.699274398296029E-13 1.084081959689461E-6 -3.6132900298743E-10 2.170118310439352E-7 4.183371246094747E-11
node -4.312300924811736E-15 1.115709282139738E-14 -3.6132900298743E-10 1.328646551817736E-9 -1.390818441490136E-9 1.10513591206827E-11
peri 4.677634675944264E-13 -1.477288722757124E-14 2.170118310439352E-7 -1.390818441490136E-9 4.476050840917441E-8 -2.611569032495076E-12
i 2.082408361622904E-15 -5.390329969975221E-15 4.183371246094747E-11 1.10513591206827E-11 -2.611569032495076E-12 1.896865175028869E-11

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 16.14   n/a E2021B55  
rotation period rot_per 1.78 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 lower-limit; Incomplete or inconclusive result.
Published Reference List:
[Erasmus, N.; McNeill, A.; Mommert, M.; Trilling, D.E.; et al. (2018) Ap. J. Suppl. Series 237, A19.]
[Erasmus, N.; McNeill, A.; Mommert, N.; Trilling, D.E.; et al. (2019) Ap. J. Suppl. Series 242, A15.]

216388 (2008 CU75)          Discovered 2008-Feb-03 by Mt. Lemmon Survey at Mount Lemmon
Reference: 20090607/Numbers.arcLast Updated: 2009-06-08
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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