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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 ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


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 
[ show covariance matrix ]

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

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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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