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15970 Robertbrownlee (1998 FA9)
Classification: Main-belt Asteroid          SPK-ID: 2015970
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1826149355615831 4.2277e-08  
a 2.158985297270539 5.6164e-09 au
q 1.764722336331074 9.0277e-08 au
i 5.059764353999416 4.4245e-06 deg
node 53.224065963 3.3954e-05 deg
peri 309.9302066556823 3.5124e-05 deg
M 199.2893545795511 1.0071e-05 deg
tp 2459517.767388106482
(2021-Oct-30.26738811)
3.3117e-05 TDB
period 1158.705194862215
3.17
4.5214e-06
1.238e-08
d
yr
n .3106916250969329 1.2124e-09 deg/d
Q 2.553248258210004 6.642e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1211  
   data-arc span      14412 days (39.46 yr)  
   first obs. used      1980-11-13  
   last obs. used      2020-04-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .50522  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 04:17:24  

Additional Information
 Earth MOID = .767954 au 
 Jupiter MOID = 2.90826 au 
 T_jup = 3.672 
[ 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 15.6   n/a MPO452397  

15970 Robertbrownlee           Discovered 1998 Mar. 22 by Spacewatch at Kitt Peak.
Robert Brownlee (b. 1924) is an American astronomer who helped young astronomers at Los Alamos Scientific Laboratory to pursue their own research interests. He played a key role in clean-up work at Enewetak Atoll before the original residents returned in 1980. Later, he organized the Lab's Geothermal Energy Program.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: MPC batch dated 2015-03-05Last Updated: 2015-03-09

Alternate Designations
 1998 FA9 = 1980 VO1 = 2000 AN52 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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