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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 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1733516073135597 4.1572e-08  
a 2.23932527327131 1.0748e-08 AU
q 1.851134637851852 9.1934e-08 AU
i 3.627206887558919 4.0505e-06 deg
node 75.79108175056425 7.6363e-05 deg
peri 247.4330562963918 7.781e-05 deg
M 183.050070622724 1.7717e-05 deg
tp 2457602.119760140328
(2016-Aug-01.61976014)
6.2998e-05 JED
period 1223.979655785791
3.35
8.812e-06
2.413e-08
d
yr
n .2941225356959722 2.1175e-09 deg/d
Q 2.627515908690768 1.2611e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      1608  
   data-arc span      23076 days (63.18 yr)  
   first obs. used      1952-05-01  
   last obs. used      2015-07-06  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .50622  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Sep-02 14:07:30  

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 13.0 mag n/a MPO337274  
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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