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91016 (1998 DS15)
Classification: Main-belt Asteroid          SPK-ID: 2091016
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1285261266019768 5.6282e-08  
a 2.625026463618606 1.3974e-08 au
q 2.287641980022022 1.5106e-07 au
i 10.7010597191582 3.9682e-06 deg
node 73.59443005282638 3.0784e-05 deg
peri 75.86540692678577 3.6834e-05 deg
M 191.2107745638459 1.8653e-05 deg
tp 2460124.851762261359
(2023-Jun-29.35176226)
8.1199e-05 TDB
period 1553.455996593048
4.25
1.2404e-05
3.396e-08
d
yr
n .2317413565556614 1.8504e-09 deg/d
Q 2.96241094721519 1.577e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1125  
   data-arc span      8570 days (23.46 yr)  
   first obs. used      1998-02-20  
   last obs. used      2021-08-08  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .5107  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Aug-25 02:01:22  

Additional Information
 Earth MOID = 1.32798 au 
 Jupiter MOID = 2.12929 au 
 T_jup = 3.366 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.60   n/a MPCxxxxx  
diameter diameter 3.445 km 0.141 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.311   0.050 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

91016 (1998 DS15)          Discovered 1998-Feb-22 by NEAT at Haleakala
Reference: 20041028/Numbers.arcLast Updated: 2004-10-29

Alternate Designations
 1998 DS15 = 2000 TK20 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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