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175620 (2006 WE99)
Classification: Outer Main-belt Asteroid          SPK-ID: 2175620
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 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1241445633893457 7.7804e-08  
a 3.95811783923159 5.5837e-08 au
q 3.466739028236604 3.146e-07 au
i 7.475657389294089 6.0014e-06 deg
node 75.87647340263906 6.1204e-05 deg
peri 223.6856162788323 6.6409e-05 deg
M 36.2446662252133 2.4652e-05 deg
tp 2458910.916968420243
(2020-Mar-02.41696842)
0.00019809 TDB
period 2876.28228443147
7.87
6.0863e-05
1.666e-07
d
yr
n .1251615677461776 2.6485e-09 deg/d
Q 4.449496650226576 6.2769e-08 au
  Orbit Determination Parameters
   # obs. used (total)      305  
   data-arc span      8018 days (21.95 yr)  
   first obs. used      1998-12-15  
   last obs. used      2020-11-27  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .52712  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 21:06:08  

Additional Information
 Earth MOID = 2.45456 au 
 Jupiter MOID = .787115 au 
 T_jup = 3.031 
[ 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 14.44   n/a E2021B55  
diameter diameter 8.046 km 0.550 urn:nasa:pds:neowise_diameters_albedos::2.0[hildas] (http://adsabs.harvard.edu/abs/2012ApJ...744..197G)  
geometric albedo albedo 0.047   0.013 urn:nasa:pds:neowise_diameters_albedos::2.0[hildas] (http://adsabs.harvard.edu/abs/2012ApJ...744..197G)  

175620 (2006 WE99)          Discovered 2006-Nov-19 by Spacewatch at Kitt Peak
Reference: 20080122/Numbers.arcLast Updated: 2008-01-28

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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-Jul-27 01:03 00:04 Jupiter 1.73499273558342 1.73499166042935 1.73499381073887 4.06783759848723 3.94599845590316 2415957.543415653 3.88011086781346 148.977279077328 38.9466667415146 -79.2619873945546 2230490.65752799 T 15 CATAB v2.0f-lin.ifort 2021-Apr-13 21:06:09 2021-Apr-13 21:06
1926-Jan-13 02:58 00:04 Jupiter 1.75546086530085 1.75545988375799 1.75546184684481 4.15054535450172 4.03261854566883 2424528.623303436 4.42647506983757 160.643582371459 39.2308985437483 -82.9102325075456 2264067.93870435 T 15 CATAB v2.0f-lin.ifort 2021-Apr-13 21:06:09 2021-Apr-13 21:06
1949-May-30 13:03 00:04 Jupiter 1.7611431717589 1.76114231534306 1.76114402817473 4.1917117733458 4.07535848641965 2433067.043518246 4.22776287573345 152.408390817316 38.5382815315754 -88.624409575576 2281474.37946171 T 15 CATAB v2.0f-lin.ifort 2021-Apr-13 21:06:09 2021-Apr-13 21:06
1972-Sep-24 14:42 00:03 Jupiter 1.76144191941018 1.76144109074638 1.76144274807418 4.19042210254578 4.07405200528719 2441585.112283970 3.26593565526691 127.906779852554 35.7193592461633 84.4626037892953 2290775.58415923 T 15 CATAB v2.0f-lin.ifort 2021-Apr-13 21:06:09 2021-Apr-13 21:06
1996-Jan-22 01:08 00:02 Jupiter 1.75492820233498 1.75492737811875 1.75492902655141 4.13526447797783 4.01685262274003 2450104.547555012 1.76966447479107 102.093359156419 33.3348700407123 80.1641894549404 2282281.20603743 T 15 CATAB v2.0f-lin.ifort 2021-Apr-13 21:06:09 2021-Apr-13 21:06
2019-Jun-09 00:23 < 00:01 Jupiter 1.73089238482821 1.73089161281208 1.73089315684444 4.02087345947504 3.89726974298742 2458643.515877625 0.59122860098581 97.214041239748 32.5988152073605 83.0528554813435 2357778.51197067 T 15 CATAB v2.0f-lin.ifort 2021-Apr-13 21:06:09 2021-Apr-13 21:06
2042-Nov-27 07:42 00:02 Jupiter 1.71704323330589 1.71704247562792 1.71704399098395 3.93378176853588 3.80631489507822 2467215.821047752 1.90140754746992 112.618410482071 31.5243909182143 84.7161794284725 2235171.65096006 T 15 CATAB v2.0f-lin.ifort 2021-Apr-13 21:06:09 2021-Apr-13 21:06
2066-Jun-23 21:13 00:03 Jupiter 1.7013085107345 1.70130770684692 1.70130931462236 3.86275774454232 3.7316439737905 2475825.383996286 3.07797003560876 127.880997826172 31.4571171230581 83.9553739450349 2014524.11679195 T 15 CATAB v2.0f-lin.ifort 2021-Apr-13 21:06:09 2021-Apr-13 21:06
2090-Feb-20 12:27 00:04 Jupiter 1.69105217171055 1.69105129796638 1.69105304545528 3.82901195249041 3.6958845648496 2484468.018777303 3.62651406523946 135.163483248718 32.655297882757 82.8151496024382 1876860.71110433 T 15 CATAB v2.0f-lin.ifort 2021-Apr-13 21:06:09 2021-Apr-13 21:06
2113-Nov-05 20:19 00:04 Jupiter 1.68974508934658 1.68974414291237 1.68974603578145 3.82183626924158 3.68834485183476 2493126.346790093 3.67297160872937 135.539806244353 35.484509652767 82.060009268349 1792986.5685162 T 15 CATAB v2.0f-lin.ifort 2021-Apr-13 21:06:09 2021-Apr-13 21:06
2137-Jul-15 21:55 00:04 Jupiter 1.68957132989682 1.68957031056992 1.68957234922391 3.81814782052985 3.68450878035983 2501779.413367007 3.670330420742 132.184244378814 40.7393339929774 82.9932555289906 1710156.03726322 T 15 CATAB v2.0f-lin.ifort 2021-Apr-13 21:06:09 2021-Apr-13 21:06
2161-Mar-01 18:37 00:04 Jupiter 1.69675021380187 1.69674908782398 1.69675133977977 3.81838570584194 3.685330885486 2510409.275363729 4.01408690694037 128.150866774983 47.6132730473245 84.6659469350622 1608904.81736038 T 15 CATAB v2.0f-lin.ifort 2021-Apr-13 21:06:09 2021-Apr-13 21:06
2184-Sep-06 23:30 00:05 Jupiter 1.71573303806752 1.71573190115366 1.71573417498128 3.82878329117016 3.69759680889245 2518999.479209166 4.55054582734127 118.708539000784 49.726089511284 86.9635566842825 1616853.69211662 T 15 CATAB v2.0f-lin.ifort 2021-Apr-13 21:06:09 2021-Apr-13 21:06
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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