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47429 (1999 XN172)
Classification: Main-belt Asteroid          SPK-ID: 2047429
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbit Diagram
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Note: This Java-based orbit viewer will eventually be retired.

Note: Make sure you have Java enabled on your browser to see the applet. This applet is provided as a 3D orbit visualization tool. The applet 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. For accurate long-term ephemerides, please instead use our Horizons system.

Note: If the applet is not working, here are some notes that might help.
Orbit Viewer

Additional Notes: the orbits shown in the applet are color coded. The planets are white lines, and the asteroid/comet is a blue line. The bright white line indicates the portion of the orbit that is above the ecliptic plane, and the darker portion is below the ecliptic plane. Likewise for the asteroid/comet orbit, the light blue indicates the portion above the ecliptic plane, and the dark blue the portion below the ecliptic plane.

Orbit Viewer applet originally written and kindly provided by Osamu Ajiki (AstroArts), and further modified by Ron Baalke (JPL).


Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2282018346750867 4.061e-08  
a 3.105226067859139 2.0326e-08 au
q 2.396607782092778 1.2639e-07 au
i 7.401456940428827 4.8977e-06 deg
node 62.91531242618909 3.6243e-05 deg
peri 96.80441366109356 3.7721e-05 deg
M 223.912165653483 1.0751e-05 deg
tp 2459756.035828593862
(2022-Jun-25.53582859)
6.3231e-05 TDB
period 1998.656967390793
5.47
1.9624e-05
5.373e-08
d
yr
n .1801209541575175 1.7686e-09 deg/d
Q 3.8138443536255 2.4965e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1098  
   data-arc span      7693 days (21.06 yr)  
   first obs. used      1998-09-21  
   last obs. used      2019-10-14  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53522  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-07 06:32:07  

Additional Information
 Earth MOID = 1.41917 au 
 Jupiter MOID = 1.25687 au 
 T_jup = 3.167 
[ 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 13.9   n/a MPO417145  
diameter diameter 6.193 km 0.362 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.152   0.017 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

47429 (1999 XN172)          Discovered 1999-Dec-10 by LINEAR at Socorro
Reference: 20020921/Numbers.arcLast Updated: 2004-04-19

[ hide close-approach data ]
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
1905-Jul-28 12:19 00:04 Jupiter 1.93117153605773 1.93116774162247 1.93117533050066 3.3336642169404 3.19939151254856 2417055.013068510 4.14765984791914 280.997303268382 30.7902440473112 -59.5873987328359 1222179.19834658 T 24 CATAB v2.0f-lin.ifort 2019-Nov-07 06:32:10 2019-Nov-07 06:32
1915-Jun-22 06:07 00:04 Jupiter 1.26814519413742 1.26814453237795 1.26814585593946 0.477105494709676 n/a 2420670.754669709 3.66166279032231 467.193274955015 20.3953061491586 86.8136837413768 9283871.36069478 F 24 CATAB v2.0f-lin.ifort 2019-Nov-07 06:32:10 2019-Nov-07 06:32
1925-May-03 07:50 00:03 Jupiter 1.85470491255216 1.85470211788422 1.854707707214 2.25322233699015 2.04049841456324 2424273.826694741 3.3035710389047 68.4550694260206 20.7809774425394 78.2444243951551 431290.860044033 T 24 CATAB v2.0f-lin.ifort 2019-Nov-07 06:32:10 2019-Nov-07 06:32
1987-Feb-28 00:43 00:01 Jupiter 1.31945247090371 1.3194516523594 1.31945328949465 0.999784952164176 n/a 2446854.529753377 1.12088794361416 422.196718954849 14.9222321444017 84.833758279679 13169257.8801105 F 24 CATAB v2.0f-lin.ifort 2019-Nov-07 06:32:10 2019-Nov-07 06:32
1997-Jan-26 01:19 < 00:01 Jupiter 1.65004645895286 1.65004567105205 1.65004724685536 1.27725271241795 0.777630658198294 2450474.555181128 0.758038343423673 701.015698786786 165.603005805524 -12.2009973180074 1206781.13946495 T 24 CATAB v2.0f-lin.ifort 2019-Nov-07 06:32:10 2019-Nov-07 06:32
2058-Dec-15 15:15 00:02 Jupiter 1.48338395228866 1.48338277517823 1.48338512942305 1.67531601708741 1.29022087186118 2473078.135332809 1.54463427157319 397.324948096464 167.06820524913 81.5399070343143 959667.806297316 T 24 CATAB v2.0f-lin.ifort 2019-Nov-07 06:32:10 2019-Nov-07 06:32
2068-Dec-06 00:01 00:02 Jupiter 1.41966303074797 1.41966158285113 1.41966447864521 0.226906284560267 n/a 2476721.500692680 2.07260844557192 87.6888084781892 47.0865259986051 42.276564516174 3522487.82513793 F 24 CATAB v2.0f-lin.ifort 2019-Nov-07 06:32:10 2019-Nov-07 06:32
2130-Sep-26 06:14 00:04 Jupiter 1.71430377277782 1.71430059160835 1.71430695398433 2.4670494993595 2.25790848061055 2499294.759376470 3.65939952932892 461.035150725253 10.8619580715935 -80.3009570105326 1262163.63011921 T 24 CATAB v2.0f-lin.ifort 2019-Nov-07 06:32:10 2019-Nov-07 06:32
2140-Sep-16 04:58 00:04 Jupiter 1.27768791512964 1.27768643738097 1.27768939288754 0.656006269422212 n/a 2502937.706842816 3.86873588604086 241.715029012649 49.2775810465135 -76.6127331072813 3776418.25152402 F 24 CATAB v2.0f-lin.ifort 2019-Nov-07 06:32:10 2019-Nov-07 06:32

Alternate Designations
 1999 XN172 = 2001 HT28 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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