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8747 Asahi (1998 FS73)
Classification: Main-belt Asteroid          SPK-ID: 2008747
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 37 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1446043492183667 2.4403e-08  
a 3.050518425000423 1.4147e-08 au
q 2.6094001933746 8.0067e-08 au
i 12.23565424970624 8.759e-07 deg
node 193.8546794374361 2.1957e-06 deg
peri 151.4923448131075 1.2196e-05 deg
M 319.8743378149803 1.1046e-05 deg
tp 2459417.409522011154
(2021-Jul-21.90952201)
6.0459e-05 TDB
period 1946.072006586556
5.33
1.3538e-05
3.707e-08
d
yr
n .1849880162612514 1.2869e-09 deg/d
Q 3.491636656626246 1.6193e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2334  
   data-arc span      18120 days (49.61 yr)  
   first obs. used      1971-03-24  
   last obs. used      2020-11-01  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .44545  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-12 20:51:34  

Additional Information
 Earth MOID = 1.60889 au 
 Jupiter MOID = 2.00643 au 
 T_jup = 3.187 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457026.5 (2015-Jan-04.0) TDB
Reference: JPL 37 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1442425965219851 2.4387e-08  
q 2.607929556671957 7.985e-08 au
tp 2457479.390747612645
(2016-Mar-31.89074761)
5.5811e-05 TDB
node 193.9368078065343 2.1926e-06 deg
peri 152.4583306585893 1.2299e-05 deg
i 12.24011749103381 8.7592e-07 deg
  Orbit Determination Parameters
   # obs. used (total)      2334  
   data-arc span      18120 days (49.61 yr)  
   first obs. used      1971-03-24  
   last obs. used      2020-11-01  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .44545  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-12 20:51:34  

Additional Information
 Jupiter MOID = 2.00643 au 
 T_jup = 3.187 
Orbit Covariance (6×6)
  e q tp node peri i
e 5.947272321986219E-16 -1.928173790741833E-15 -4.17250944096813E-13 2.624057326418171E-14 -5.33189963959452E-14 -1.675413623148467E-15
q -1.928173790741833E-15 6.376099644741866E-15 1.460899696711354E-12 -8.774790651425092E-14 1.940306621598239E-13 5.354214105207255E-15
tp -4.17250944096813E-13 1.460899696711354E-12 3.114866114057966E-9 -5.527750369653853E-11 6.713460873833942E-10 -3.531714751014082E-13
node 2.624057326418171E-14 -8.774790651425092E-14 -5.527750369653853E-11 4.807536890307772E-12 -1.369042714914034E-11 -8.84843081985041E-13
peri -5.33189963959452E-14 1.940306621598239E-13 6.713460873833942E-10 -1.369042714914034E-11 1.512705224987274E-10 8.935422864687144E-13
i -1.675413623148467E-15 5.354214105207255E-15 -3.531714751014082E-13 -8.84843081985041E-13 8.935422864687144E-13 7.672356564375603E-13

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 12.16   n/a E2021B10  
diameter diameter 12.431 km 0.133 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
geometric albedo albedo 0.167   0.008 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  

8747 Asahi           Discovered 1998 Mar. 24 by T. Okuni at Nanyo.
Asahi is the mountain range forming the border between Niigata and Yamagata prefectures in the northern part of mainland Japan. Meaning "morning sun", the name is also that of several Japanese towns and villages, as well as of another mountain range.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 19991123/MPCPages.arcLast Updated: 2010-06-11

Alternate Designations
 1998 FS73 = 1037 T-1 = 1973 SV5 = 1978 NQ3 = 1978 RY1 = 1984 UN4 = 1989 RX2 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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