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2989 Imago (1976 UF1)
Classification: Main-belt Asteroid          SPK-ID: 2002989
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1733516164083266 4.215e-08  
a 2.239325277643321 1.1183e-08 AU
q 1.851134621099826 9.2886e-08 AU
i 3.627204660780391 4.7462e-06 deg
node 75.79108638068432 7.7734e-05 deg
peri 247.43304360 7.9363e-05 deg
M 183.0500747605493 1.803e-05 deg
tp 2457602.119747833841
(2016-Aug-01.61974783)
6.3816e-05 JED
period 1223.979659370298
3.35
9.1683e-06
2.51e-08
d
yr
n .2941225348346144 2.2031e-09 deg/d
Q 2.627515934186815 1.3121e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      1415  
   data-arc span      22883 days (62.65 yr)  
   first obs. used      1952-05-01  
   last obs. used      2014-12-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .51814  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Jan-08 00:00:04  

Additional Information
 Earth MOID = .843205 AU 
 T_jup = 3.613 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 12.9 mag n/a MPO279545  
diameter diameter 12.5 km n/a DASTCOM value unverified
geometric albedo albedo 0.0595   0.016 EAR-A-5-DDR-ALBEDOS-V1.0:IMPS IMPS quality code 2: from the PDS IMPS singleton file

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 | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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