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91825 (1999 TM281)
Classification: Main-belt Asteroid          SPK-ID: 2091825
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 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1418703779978175 4.1964e-08  
a 3.145455604451593 2.5146e-08 au
q 2.699208628872692 1.3281e-07 au
i 11.56921979038461 4.9548e-06 deg
node 104.69452092064 2.2042e-05 deg
peri 308.1575447244346 2.7152e-05 deg
M 233.1702870029662 1.7483e-05 deg
tp 2459718.364166988161
(2022-May-18.86416699)
0.0001032 TDB
period 2037.622683272822
5.58
2.4434e-05
6.69e-08
d
yr
n .1766764784055944 2.1186e-09 deg/d
Q 3.591702580030494 2.8713e-08 au
  Orbit Determination Parameters
   # obs. used (total)      770  
   data-arc span      7641 days (20.92 yr)  
   first obs. used      1998-06-26  
   last obs. used      2019-05-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56956  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 22:37:48  

Additional Information
 Earth MOID = 1.72952 au 
 Jupiter MOID = 1.78528 au 
 T_jup = 3.162 
[ 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 14.3   n/a MPO436414  
diameter diameter 3.878 km 1.186 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.295   0.131 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

91825 (1999 TM281)          Discovered 1999-Oct-08 by LINEAR at Socorro
Reference: 20041028/Numbers.arcLast Updated: 2004-10-29

[ show close-approach data ]
Alternate Designations
 1999 TM281 = 1998 MK42 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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