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8735 Yoshiosakai (1997 AA1)
Classification: Main-belt Asteroid          SPK-ID: 2008735
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 33 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2128319399759286 3.9386e-08  
a 3.195347937673326 1.461e-08 au
q 2.515275837200229 1.25e-07 au
i 1.940513352267076 3.8599e-06 deg
node 50.86045761365818 0.00012777 deg
peri 341.5281821314928 0.00012806 deg
M 156.94958151214 1.0139e-05 deg
tp 2458486.935879435495
(2019-Jan-03.43587944)
5.5846e-05 TDB
period 2086.294721199332
5.71
1.4308e-05
3.917e-08
d
yr
n .1725547193030569 1.1834e-09 deg/d
Q 3.875420038146422 1.7719e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2224  
   data-arc span      17781 days (48.68 yr)  
   first obs. used      1972-10-06  
   last obs. used      2021-06-12  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .47651  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 15:51:42  

Additional Information
 Earth MOID = 1.52079 au 
 Jupiter MOID = 1.56869 au 
 T_jup = 3.159 
[ 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 13.04   n/a E2021B10  
diameter diameter 13.208 km 0.401 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.077   0.008 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

8735 Yoshiosakai           Discovered 1997 Jan. 2 by T. Kobayashi at Oizumi.
Sakai Yoshio (1923-2002) is a pioneer in building astronomical observatories for the general public. He established the Hidahiko Tenmondai at his own expense. He also toiled as director of Ogawa Astronomical Observatory (founded in 1991), contributing much to education in astronomy.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20061109/MPCPages.arcLast Updated: 2006-11-13

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Close-Approach Data   ...sorted by Date/Time (TDB)
Date/Time (TDB) Time Uncertainty
(days_HH:MM)
Body Nominal Distance (au) Minimum Distance (au) Maximum Distance (au) V-relative (km/s) V-infinity (km/s) JD (TDB) Time Uncertainty (minutes) Semi-major axis (km) Semi-minor axis (km) range-LOV angle (deg) N-sigma BP Orbit Ref. Reference Modified
1924-Jun-11 11:29 00:04 Jupiter 1.886837578708 1.88683594224106 1.88683921517323 2.51375025472471 2.32832943422817 2423947.978253546 4.02077196835006 51.6302697877061 20.707585305235 76.6231023808454 724688.978106453 T 33 CATAB v2.0g-lin.ifort 2021-Jul-08 15:52:09 2021-Jul-08 15:52
1935-Aug-22 15:26 00:03 Jupiter 1.7484616976797 1.74846058933472 1.74846280602289 1.85725433981738 1.57496548646761 2428037.142913069 3.20305682971071 63.3606622939126 44.8375937849777 -62.2715786451534 1000884.03704635 T 33 CATAB v2.0g-lin.ifort 2021-Jul-08 15:52:09 2021-Jul-08 15:52
1946-Dec-01 12:17 00:02 Jupiter 1.6622177495369 1.66221716713629 1.66221833193685 1.52294037406701 1.14026308719175 2432156.011867227 2.39810615848017 110.157443363448 87.7437966151265 -31.3802594840567 1705693.93954333 T 33 CATAB v2.0g-lin.ifort 2021-Jul-08 15:52:09 2021-Jul-08 15:52
1958-Apr-02 07:04 00:02 Jupiter 1.63717622330188 1.63717585990281 1.63717658670123 1.42836180078613 1.00273701847186 2436295.794581136 1.74356578773702 146.180750770247 118.487246576309 -60.8733006612566 2273906.48241432 T 33 CATAB v2.0g-lin.ifort 2021-Jul-08 15:52:09 2021-Jul-08 15:52
1969-Aug-03 00:58 00:01 Jupiter 1.66783815359778 1.66783772825999 1.667838578937 1.51583714169354 1.13227609863441 2440436.540390577 1.25470019924442 156.153607849983 79.7340211161254 -68.7792852474118 2380954.96461137 T 33 CATAB v2.0g-lin.ifort 2021-Jul-08 15:52:09 2021-Jul-08 15:52
1980-Nov-17 09:00 < 00:01 Jupiter 1.75609538873115 1.75609490440407 1.75609587305862 1.81622510195945 1.52774601984688 2444560.874704369 0.883752915632078 89.2011344120496 25.2737242724232 -78.7533854482002 2661752.2622348 T 33 CATAB v2.0g-lin.ifort 2021-Jul-08 15:52:09 2021-Jul-08 15:52
1992-Feb-04 13:19 < 00:01 Jupiter 1.89624894770397 1.89624848382093 1.89624941158691 2.40770500522579 2.21442476300989 2448657.054913225 0.577543201957086 45.7202618363848 6.6373650421993 88.5538785541369 2759592.49051276 T 33 CATAB v2.0g-lin.ifort 2021-Jul-08 15:52:09 2021-Jul-08 15:52
2102-Nov-25 12:48 00:02 Jupiter 1.86778473359733 1.86778413794142 1.86778532925314 2.55786269387518 2.37395886462419 2489128.033587996 1.55229496112736 48.9418471596098 8.7686909082967 85.0030361593913 1875842.82324163 T 33 CATAB v2.0g-lin.ifort 2021-Jul-08 15:52:09 2021-Jul-08 15:52
2114-Jan-31 03:25 00:02 Jupiter 1.72713066396946 1.72713015980054 1.72713116813798 1.84788785720811 1.56007882928363 2493212.642347865 1.75187911067815 60.3111992720048 33.4687341812757 -85.7337243802902 1832455.59356553 T 33 CATAB v2.0g-lin.ifort 2021-Jul-08 15:52:09 2021-Jul-08 15:52
2125-May-09 04:06 00:02 Jupiter 1.64394320406713 1.64394284545035 1.64394356268363 1.49465018920891 1.09704265035733 2497328.670861342 2.01022503978474 104.666459118933 83.9461891013479 -33.1553935562826 2219644.60577265 T 33 CATAB v2.0g-lin.ifort 2021-Jul-08 15:52:09 2021-Jul-08 15:52
2136-Sep-07 13:09 00:02 Jupiter 1.62489537672612 1.62489496505775 1.62489578839495 1.40111882385372 0.959467347337219 2501468.047701633 2.42379630979334 154.555315852381 116.071473505522 -39.3464740237445 2339966.13831872 T 33 CATAB v2.0g-lin.ifort 2021-Jul-08 15:52:09 2021-Jul-08 15:52
2148-Jan-09 23:30 00:03 Jupiter 1.66240210243715 1.66240127852571 1.66240292635463 1.49530963208299 1.10313935643246 2505609.479176886 3.04876021852907 254.329570456386 82.3750365818365 -63.8235859279208 2308459.16413354 T 33 CATAB v2.0g-lin.ifort 2021-Jul-08 15:52:09 2021-Jul-08 15:52
2159-Apr-27 15:02 00:04 Jupiter 1.75764635019766 1.75764492992058 1.75764777048653 1.80061637299731 1.50943858164909 2509735.126569759 3.85289342477623 290.985605527386 26.7529480970052 -79.4574884018352 2650761.22295223 T 33 CATAB v2.0g-lin.ifort 2021-Jul-08 15:52:09 2021-Jul-08 15:52
2170-Jul-17 02:24 00:05 Jupiter 1.90486955152205 1.90486758983256 1.90487151321879 2.3852084052635 2.19086644037533 2513833.599914315 4.69248637175842 231.934702283443 7.87573888946046 83.5919572838771 2640602.59294419 T 33 CATAB v2.0g-lin.ifort 2021-Jul-08 15:52:09 2021-Jul-08 15:52

Alternate Designations
 1997 AA1 = 1972 TR1 = 1978 TZ8 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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