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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 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08278543340655944 4.0177e-08  
a 2.770460511285047 1.5723e-08 au
q 2.541106737122556 1.1634e-07 au
i 6.235800785277359 3.4096e-06 deg
node 97.01172063392681 4.3822e-05 deg
peri 325.8184937274712 5.2446e-05 deg
M 3.219651569844285 2.8184e-05 deg
tp 2459381.436262205797
(2021-Jun-15.93626221)
0.00013186 TDB
period 1684.32685595712
4.61
1.4339e-05
3.926e-08
d
yr
n .2137352371523102 1.8195e-09 deg/d
Q 2.999814285447538 1.7025e-08 au
  Orbit Determination Parameters
   # obs. used (total)      753  
   data-arc span      10811 days (29.60 yr)  
   first obs. used      1991-06-07  
   last obs. used      2021-01-11  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .52836  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 14:38:14  

Additional Information
 Earth MOID = 1.55713 au 
 Jupiter MOID = 2.24196 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 15.37   n/a E2021B10  
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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