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90032 (2002 UM28)
Classification: Main-belt Asteroid          SPK-ID: 2090032
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08263549394990734 4.3348e-08  
a 2.770854041608514 2.1083e-08 au
q 2.541883149217097 1.2083e-07 au
i 6.235950407072547 4.7005e-06 deg
node 97.01270095517498 4.4314e-05 deg
peri 325.5829899952111 5.3374e-05 deg
M 278.7871598935659 3.0505e-05 deg
tp 2459380.550316603916
(2021-Jun-15.05031660)
0.0001438 TDB
period 1684.685744250561
4.61
1.9228e-05
5.264e-08
d
yr
n .2136897051741525 2.4389e-09 deg/d
Q 2.999824933999931 2.2825e-08 au
  Orbit Determination Parameters
   # obs. used (total)      556  
   data-arc span      10645 days (29.14 yr)  
   first obs. used      1991-06-07  
   last obs. used      2020-07-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55537  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Aug-25 08:11:25  

Additional Information
 Earth MOID = 1.55822 au 
 Jupiter MOID = 2.24253 au 
 T_jup = 3.324 
[ 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 15.3   n/a MPO436403  
diameter diameter 4.626 km 0.860 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.069   0.022 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

90032 (2002 UM28)          Discovered 2002-Oct-30 by NEAT at Palomar
Reference: 20040830/Numbers.arcLast Updated: 2004-09-06

[ show close-approach data ]
Alternate Designations
 2002 UM28 = 1999 BD7 = 2001 OQ3 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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