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152661 (1998 DS1)
Classification: Main-belt Asteroid          SPK-ID: 2152661
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2171728886796423 3.9749e-08  
a 2.690162903289273 1.1347e-08 au
q 2.105932454563128 1.0751e-07 au
i 2.775518135799417 3.684e-06 deg
node 251.3728124726529 8.469e-05 deg
peri 162.3546024580665 8.5371e-05 deg
M 139.1439251374688 1.0255e-05 deg
tp 2458577.586065976231
(2019-Apr-04.08606598)
4.3864e-05 TDB
period 1611.633537195442
4.41
1.0197e-05
2.792e-08
d
yr
n .2233758430135864 1.4133e-09 deg/d
Q 3.274393352015418 1.3812e-08 au
  Orbit Determination Parameters
   # obs. used (total)      973  
   data-arc span      13641 days (37.35 yr)  
   first obs. used      1983-11-09  
   last obs. used      2021-03-15  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .52275  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 19:28:06  

Additional Information
 Earth MOID = 1.11674 au 
 Jupiter MOID = 2.09738 au 
 T_jup = 3.336 
[ 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 15.75   n/a E2021B55  
diameter diameter 4.272 km 1.099 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2016AJ....152...63N)  
geometric albedo albedo 0.051   0.035 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2016AJ....152...63N)  

152661 (1998 DS1)          Discovered 1998-Feb-20 by Klet at Klet
Reference: 20070402/Numbers.arcLast Updated: 2007-04-04

[ show close-approach data ]
Alternate Designations
 1998 DS1 = 1983 VT5 = 2001 XE178 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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