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17850 (1998 HR150)
Classification: Main-belt Asteroid          SPK-ID: 2017850
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 28 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1429393427264624 3.3485e-08  
a 2.685062669476346 1.1908e-08 au
q 2.301261576322037 8.9034e-08 au
i 12.4764849311899 4.5677e-06 deg
node 206.2108566396426 1.7472e-05 deg
peri 252.0312197019636 2.4662e-05 deg
M 120.0408678883449 1.9812e-05 deg
tp 2458464.633395153190
(2018-Dec-12.13339515)
8.685e-05 TDB
period 1607.052507520083
4.40
1.069e-05
2.927e-08
d
yr
n .2240125934376174 1.4902e-09 deg/d
Q 3.068863762630656 1.361e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1755  
   data-arc span      15203 days (41.62 yr)  
   first obs. used      1978-11-01  
   last obs. used      2020-06-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .48824  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jun-23 18:16:03  

Additional Information
 Earth MOID = 1.35282 au 
 Jupiter MOID = 2.25473 au 
 T_jup = 3.326 
[ 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 13.5   n/a MPO384907  
diameter diameter 4.950 km 0.210 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.345   0.042 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

17850 (1998 HR150)          Discovered 1998-Apr-20 by Spacewatch at Kitt Peak
Reference: 20001013/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1998 HR150 = 1978 VD16 = 1995 QT7 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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