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9747 (1989 AT)
Classification: Main-belt Asteroid          SPK-ID: 2009747
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 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 42 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1233069539268115 1.2912e-08  
a 3.026805268356484 1.3858e-08 au
q 2.65357913058582 3.8534e-08 au
i 13.26602218048844 8.5551e-07 deg
node 99.86514162014453 2.1948e-06 deg
peri 356.3474984698387 1.6074e-05 deg
M 27.88066662554789 1.3495e-05 deg
tp 2459051.537894762216
(2020-Jul-21.03789476)
7.182e-05 TDB
period 1923.424522298282
5.27
1.3209e-05
3.616e-08
d
yr
n .187166169416328 1.2854e-09 deg/d
Q 3.400031406127147 1.5566e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2191  
   data-arc span      11763 days (32.21 yr)  
   first obs. used      1989-01-04  
   last obs. used      2021-03-20  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .44548  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-04 00:23:37  

Additional Information
 Earth MOID = 1.67033 au 
 Jupiter MOID = 1.78128 au 
 T_jup = 3.192 
[ 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 13.12   n/a E2021B10  
diameter diameter 9.193 km 0.062 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 13.4722 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Pal, A.; Szakats, R.; Kiss, C.; Bodi, A.; et al. (2019) Ap. J. Supl. Ser. 247, id.26.]
geometric albedo albedo 0.140   0.020 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

9747 (1989 AT)          Discovered 1989-Jan-04 by Ueda, S., Kaneda, H. at Kushiro
Reference: 19981208/Numbers.arcLast Updated: 2004-04-19

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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
1902-Aug-13 20:09 00:02 Jupiter 1.8446935745934 1.84469278259787 1.84469436659784 3.42220621044486 3.28529469638767 2415975.339568552 2.46498554709621 214.575600788683 6.80918593776595 78.7920273155847 11998254.7261265 T 42 CATAB v2.0g-lin.ifort 2021-May-04 00:24:18 2021-May-04 00:24
1949-Dec-30 04:57 00:01 Jupiter 1.83378926158881 1.83378878789542 1.83378973528533 3.41923430092778 3.28136684688864 2433280.705904174 1.44043468101615 128.365505006799 5.97632232015466 79.1166103180132 13264847.2910122 T 42 CATAB v2.0g-lin.ifort 2021-May-04 00:24:18 2021-May-04 00:24
1997-May-21 13:04 < 00:01 Jupiter 1.83132886057305 1.8313286077255 1.83132911342092 3.42214664563834 3.28421249613018 2450590.044464906 0.459304570149857 43.4396439035523 3.9051280033096 74.4002790797831 17611623.3967798 T 42 CATAB v2.0g-lin.ifort 2021-May-04 00:24:18 2021-May-04 00:24
2044-Oct-14 05:40 < 00:01 Jupiter 1.82646165632066 1.82646147415032 1.8264618384912 3.41590238561502 3.27732941628025 2467902.736420232 0.635009954852509 57.9011943532689 6.42966850370706 83.6744029713635 12625007.7292974 T 42 CATAB v2.0g-lin.ifort 2021-May-04 00:24:18 2021-May-04 00:24
2092-Mar-12 06:07 00:02 Jupiter 1.81685063704103 1.81685036668093 1.81685090740464 3.39885286620753 3.25880244601237 2485218.754615019 1.63184472030796 147.787210168651 5.64005427560624 84.0908540172101 13568638.3582582 T 42 CATAB v2.0g-lin.ifort 2021-May-04 00:24:18 2021-May-04 00:24
2139-Aug-12 12:03 00:03 Jupiter 1.81139534403494 1.81139496983578 1.81139571824521 3.38719232524194 3.24620645326158 2502537.002410897 2.6724760293243 242.390157806564 5.12826280073156 84.421785209287 14191990.5000204 T 42 CATAB v2.0g-lin.ifort 2021-May-04 00:24:18 2021-May-04 00:24
2187-Jan-13 06:00 00:04 Jupiter 1.81037063543517 1.81037017422595 1.81037109666744 3.37958494212027 3.238186146285 2519857.749999953 3.76869766173265 340.623268063747 4.73797232850796 84.7808022116909 14654197.2763838 T 42 CATAB v2.0g-lin.ifort 2021-May-04 00:24:18 2021-May-04 00:24

Alternate Designations
 1989 AT = 1994 AA 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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