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2989 Imago (1976 UF1)
Classification: Main-belt Asteroid          SPK-ID: 2002989
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 .1736199692701118 3.0565e-08  
a 2.238135645952183 6.0161e-09 au
q 1.849550603879623 7.0202e-08 au
i 3.627000817829182 3.0335e-06 deg
node 75.75518025531035 5.1042e-05 deg
peri 247.373384802267 5.1803e-05 deg
M 51.77371123424575 8.8846e-06 deg
tp 2458824.612559382446
(2019-Dec-07.11255938)
3.0044e-05 TDB
period 1223.00443821452
3.35
4.9311e-06
1.35e-08
d
yr
n .2943570675226401 1.1868e-09 deg/d
Q 2.626720688024743 7.0606e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2775  
   data-arc span      25022 days (68.51 yr)  
   first obs. used      1952-05-01  
   last obs. used      2020-11-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .44106  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Dec-18 02:09:28  

Additional Information
 Earth MOID = .840828 au 
 Jupiter MOID = 2.68379 au 
 T_jup = 3.614 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456699.5 (2014-Feb-11.0) TDB
Reference: JPL 37 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1732245115746091 3.0425e-08  
q 1.850864322749181 6.9815e-08 au
tp 2456377.227693199332
(2013-Mar-25.72769320)
3.0092e-05 TDB
node 75.82731363503449 5.096e-05 deg
peri 247.1531189392954 5.1737e-05 deg
i 3.62966010815407 3.0355e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      2775  
   data-arc span      25022 days (68.51 yr)  
   first obs. used      1952-05-01  
   last obs. used      2020-11-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .44106  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Dec-18 02:09:28  

Additional Information
 Jupiter MOID = 2.68379 au 
 T_jup = 3.614 
Orbit Covariance (6×6)
  e q tp node peri i
e 9.257011098528696E-16 -2.119308242335455E-15 1.131529051819397E-13 2.011387805214857E-15 3.905174392010526E-14 -6.454349201610837E-16
q -2.119308242335455E-15 4.874165618335691E-15 -2.733935639300149E-13 -5.215587256545731E-15 -9.131396356099059E-14 1.525977223273961E-15
tp 1.131529051819397E-13 -2.733935639300149E-13 9.055129621494324E-10 -4.328682556543941E-12 2.783159841290082E-10 -8.563109952496791E-14
node 2.011387805214857E-15 -5.215587256545731E-15 -4.328682556543941E-12 2.596906337729224E-9 -2.592566884139386E-9 5.263558499431529E-12
peri 3.905174392010526E-14 -9.131396356099059E-14 2.783159841290082E-10 -2.592566884139386E-9 2.676674467599724E-9 -5.280280967459528E-12
i -6.454349201610837E-16 1.525977223273961E-15 -8.563109952496791E-14 5.263558499431529E-12 -5.280280967459528E-12 9.214510106124213E-12

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 13.1   n/a MPO492785  
diameter diameter 6.042 km 0.330 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
rotation period rot_per 11.457 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Published Reference List:
[Linville, D.; Jiang, H.; Michalik, D.; Wilson, S.; Ditteon, R. (2017) Minor Planet Bull. 44, 173-176.]
geometric albedo albedo 0.367   0.037 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  

2989 Imago (1976 UF1)          Discovered 1976-Oct-22 by Wild, P. at Zimmerwald
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 1976 UF1 = 1952 JL = 1952 KW = 1966 UD1 = 1972 JK = 1982 HA2 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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