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(2015 XY261)
Classification: Apollo [NEO]          SPK-ID: 3736517
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]

[ hide orbit diagram ]

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 6 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .4649407239328642 0.00013867  
a 1.494545337874484 0.00031668 au
q .799670346532634 3.7806e-05 au
i 1.589945957848331 8.7409e-05 deg
node 86.90792557582148 0.00084816 deg
peri 61.94753179790154 0.00071863 deg
M 241.5385279506827 0.3041 deg
tp 2459420.102202912230
(2021-Jul-24.60220291)
0.63353 TDB
period 667.3629128590462
1.83
0.21212
0.0005808
d
yr
n .5394366289515936 0.00017145 deg/d
Q 2.189420329216333 0.00046392 au
  Orbit Determination Parameters
   # obs. used (total)      41  
   data-arc span      9 days  
   first obs. used      2015-12-06  
   last obs. used      2015-12-15  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      6  
   norm. resid. RMS      .34279  
   source      ORB  
   producer      Otto Matic  
   solution date      2017-Apr-06 08:29:56  

Additional Information
 Earth MOID = .0018106 au 
 Jupiter MOID = 2.82084 au 
 T_jup = 4.430 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 27.2   n/a MPO358595  

[ 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
1921-Mar-04 03:13 7_04:16 Mars 0.0991443097276104 0.0130079716171201 0.299454211665158 12.4408892210843 12.4406571125967 2422752.634339059 10336.3895998322 10017311.4130675 42.9523726571531 -7.54018542805998 45970.9162838608 T 6 CATAB v2.0e-lin.ifort 2017-Nov-30 09:24:16 2018-Dec-11 16:47
1938-Apr-29 22:53 9_19:19 Earth 0.0464210262038366 0.0164473914437557 0.165027249821486 13.0919025475865 13.0875175678281 2429018.453727755 14118.5082738913 6023708.60997381 26.1033329139727 -20.7689153851655 89603.669285929 T 6 CATAB v2.0e-lin.ifort 2017-Nov-30 09:24:16 2018-Dec-11 16:47
1939-Dec-03 19:49 1_17:51 Earth 0.158630165735546 0.124914677195376 0.192353722148708 16.5981576951896 16.597145696542 2429601.325998767 2511.05150458323 1682402.37121914 3.23973627196491 1.93750752576556 234252.189579733 T 6 CATAB v2.0e-lin.ifort 2017-Nov-30 09:24:16 2018-Dec-11 16:47
1964-May-08 23:55 1_10:19 Earth 0.185165976331147 0.141991154053555 0.228385162168976 17.2388012375926 17.2379664910672 2438524.496840166 2059.32300516801 2158796.64618698 25.4560921975134 -3.7176645872796 64279.6462955566 T 6 CATAB v2.0e-lin.ifort 2017-Nov-30 09:24:16 2018-Dec-11 16:47
1971-Aug-16 12:37 9_09:51 Venus 0.136343792379262 0.0375531458174456 0.235112634766844 7.80380990908253 7.80176871784432 2441180.025492175 13551.1055102591 4924994.8466602 30.3094569852682 -1.30044820576929 10457.3523875289 T 6 CATAB v2.0e-lin.ifort 2017-Nov-30 09:24:16 2018-Dec-11 16:47
1977-Apr-24 16:56 7_01:15 Earth 0.026508606590485 0.0164798390291641 0.0874972514253541 11.166414093964 11.1574090283893 2443258.205679568 10155.3218281481 3250068.29892585 27.0202049882011 38.4559508931727 91840.416192079 T 6 CATAB v2.0e-lin.ifort 2017-Nov-30 09:24:16 2018-Dec-11 16:47
1978-Nov-25 21:10 2_16:28 Earth 0.306228827621106 0.243323110806942 0.369135999851402 21.0345290233346 21.0341153688252 2443838.381924966 3867.56912935175 3137066.69850785 4.26321768811493 -0.682403405927394 116496.06456143 T 6 CATAB v2.0e-lin.ifort 2017-Nov-30 09:24:16 2018-Dec-11 16:47
1982-Sep-24 07:16 9_19:45 Venus 0.109579700748563 0.0596510133225701 0.164461117185094 6.20689929957256 6.20370573371377 2445236.802945567 14144.8685420348 2862503.57166498 28.6082212657921 21.0999403749156 155980.591678787 T 6 CATAB v2.0e-lin.ifort 2017-Nov-30 09:24:16 2018-Dec-11 16:47
1984-Jul-31 07:09 8_11:25 Venus 0.126811174920226 0.0572802697669381 0.201477800860364 7.20705208420583 7.20467565234681 2445912.797926263 12204.9222717916 3815985.88028322 29.1095039321514 16.0851929418653 134959.038180248 T 6 CATAB v2.0e-lin.ifort 2017-Nov-30 09:24:16 2018-Dec-11 16:47
2001-May-19 02:47 3_03:45 Earth 0.35450878271006 0.276147598577822 0.432876050019334 22.2332390605017 22.2329010066241 2452048.616108651 4545.15328976742 3908393.19556397 25.0040242798603 -1.09018712341141 36641.1236970611 T 6 CATAB v2.0e-lin.ifort 2017-Nov-30 09:24:16 2018-Dec-11 16:47
2008-Dec-21 07:53 1_04:59 Mars 0.0421787690336488 0.0290781696121945 0.0716055715547344 13.5947121149838 13.5942128279984 2454821.828634114 1738.66696860576 1739454.79759162 4.00548171771289 43.5836330580872 1085775.98133622 T 6 CATAB v2.0e-lin.ifort 2017-Nov-30 09:24:16 2018-Dec-11 16:47
2014-May-12 21:32 13:00 Earth 0.23086553511802 0.219652094689319 0.242080591354507 18.6186038634438 18.6179839752417 2456790.397517976 779.520954481222 560038.017082533 24.5123706100557 -3.13788237251237 70367.8588204011 T 6 CATAB v2.0e-lin.ifort 2017-Nov-30 09:24:16 2018-Dec-11 16:47
2015-Dec-15 13:52 < 00:01 Earth 0.00192770954039861 0.00192606341924994 0.00192935560842744 11.9215724381921 11.8050620590383 2457372.077495867 0.0236414486956954 80.5022353545513 0.891672622462204 -0.570179324778974 2374.50182945014 T 6 CATAB v2.0e-lin.ifort 2017-Nov-30 09:24:16 2018-Dec-11 16:47
2015-Dec-15 17:17 < 00:01 Moon 0.00354041570376172 0.00353909164705958 0.00354174005569362 12.870710543777 12.8699913032936 2457372.220288062 0.164131898204813 83.4273771537616 0.972243494765779 -37.6939703409971 323687.836309459 T 6 CATAB v2.0e-lin.ifort 2017-Nov-30 09:24:16 2018-Dec-11 16:47
2025-May-10 15:35 2_20:26 Earth 0.171272589876804 0.118341776516077 0.224413913541414 16.8297153641253 16.8287909647395 2460806.149584854 4106.41686050186 2661596.09733494 26.7857875369752 -6.15886620805091 93557.458569487 T 6 CATAB v2.0e-lin.ifort 2017-Nov-30 09:24:16 2018-Dec-11 16:47
2026-Dec-01 02:21 2_23:38 Earth 0.220544268962106 0.156585048432433 0.284502749889935 18.4762839409721 18.4756300435317 2461375.597807451 4297.6946497775 3189305.7022522 3.42966043355241 -0.20434532557218 29333.6743041156 T 6 CATAB v2.0e-lin.ifort 2017-Nov-30 09:24:16 2018-Dec-11 16:47
2028-Nov-18 20:19 5_10:58 Venus 0.147562537771683 0.0788657730255712 0.217879588732611 8.64004056833955 8.63833715571442 2462094.346322822 7857.84953868333 3550993.29450168 35.8618549277498 11.1289154460269 90027.8616455375 T 6 CATAB v2.0e-lin.ifort 2017-Nov-30 09:24:16 2018-Dec-11 16:47
2035-Nov-23 09:34 3_15:24 Mars 0.0561726981762731 0.0202193153797557 0.151844698639845 14.8819915151734 14.8816490433499 2464654.898946345 5244.45919951312 4891118.80162708 48.2351310206151 21.0990445628603 62165.5422499644 T 6 CATAB v2.0e-lin.ifort 2017-Nov-30 09:24:16 2018-Dec-11 16:47
2037-Nov-20 22:02 9_18:53 Earth 0.415947400449698 0.168691880382304 0.663387354090694 24.3320398712624 24.3317766034454 2465383.418154535 14092.5531530295 12341962.9459892 5.70755130558256 -1.65271921138316 293226.347105136 T 6 CATAB v2.0e-lin.ifort 2017-Nov-30 09:24:16 2018-Dec-11 16:47
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]
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