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(2021 DG)
Classification: Apollo [NEO]          SPK-ID: 54122969
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 1 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3844536054421607 0.00031806  
a 1.091119877257078 0.00026868 au
q .6716349064759864 0.00018201 au
i 8.523410510707254 0.0072826 deg
node 330.2190514269805 0.00017774 deg
peri 278.4941879293829 0.0023659 deg
M 77.63210766688505 0.12212 deg
tp 2458910.726945007926
(2020-Mar-02.22694501)
0.17438 TDB
period 416.3006875431292
1.14
0.15377
0.000421
d
yr
n .8647595614713069 0.00031942 deg/d
Q 1.510604848038169 0.00037198 au
  Orbit Determination Parameters
   # obs. used (total)      17  
   data-arc span      1 day  
   first obs. used      2021-02-17  
   last obs. used      2021-02-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      7  
   norm. resid. RMS      .30109  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-18 03:12:03  

Additional Information
 Earth MOID = .000962068 au 
 Jupiter MOID = 3.55187 au 
 T_jup = 5.605 
[ 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 30.43   .60759 E2021D26 autocmod 2.8

[ 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
1980-Feb-18 10:38 3_08:20 Earth 0.0154480958894987 0.00185037422705882 0.0913916214875381 13.357410325891 13.3444914358396 2444287.943307053 4819.74243642318 3791645.91122819 40.4991735402676 -6.93502376196939 5841.97452668389 T 1 CATAB v2.0f-lin.ifort 2021-Feb-18 03:12:04 2021-Feb-18 03:12
1981-Oct-15 20:27 9_00:38 Earth 0.42132945359021 0.37934525072248 0.463353781810294 8.96911671947251 8.9684116077541 2444893.352231281 12998.484274539 2104595.07480968 2712.44377473834 -5.63949265754796 1510.34647048601 T 1 CATAB v2.0f-lin.ifort 2021-Feb-18 03:12:04 2021-Feb-18 03:12
1982-Sep-28 15:25 3_22:26 Earth 0.382751666149003 0.297540874662497 0.468333814958996 24.0112910752547 24.0110011524506 2445241.142512514 5665.49545421632 4299686.39436684 1168.77096666572 -7.75195539863346 5935.06777234309 T 1 CATAB v2.0f-lin.ifort 2021-Feb-18 03:12:04 2021-Feb-18 03:12
1986-Jan-26 17:07 6_03:35 Venus 0.121921494837991 0.0275110314717182 0.244992392000923 16.6446485118744 16.6435784029172 2446457.213154107 8855.23543172935 6216536.48983541 557.978751767515 13.0477925206731 7686.22203500252 T 1 CATAB v2.0f-lin.ifort 2021-Feb-18 03:12:04 2021-Feb-18 03:12
1988-Feb-10 21:35 4_17:41 Earth 0.193350140736362 0.0856803869932846 0.301030038536201 18.5789458289483 18.5782040825175 2447202.398981934 6820.75047383299 5369762.37590494 242.598618167762 0.739630957763553 1373.83614898006 T 1 CATAB v2.0f-lin.ifort 2021-Feb-18 03:12:04 2021-Feb-18 03:12
1988-Dec-30 01:53 8_03:56 Earth 0.48964621428292 0.456803331943444 0.52249077885757 10.4795097774593 10.4789904996684 2447525.578753674 11755.9555994267 1638408.91280666 1951.74600901379 -1.69289289736211 852.054657415203 T 1 CATAB v2.0f-lin.ifort 2021-Feb-18 03:12:04 2021-Feb-18 03:12
1989-Oct-31 21:34 8_17:24 Earth 0.491229530244276 0.456535151293668 0.526002860876101 10.1483118046889 10.1477773073776 2447831.398348791 12563.6033777806 1759659.12727123 2516.61274421617 -10.1654329412805 3631.09184335053 T 1 CATAB v2.0f-lin.ifort 2021-Feb-18 03:12:04 2021-Feb-18 03:12
1990-Sep-20 21:39 5_02:05 Earth 0.215914252614455 0.111937516688086 0.323613662140872 18.9478093612162 18.9471580635784 2448155.402004066 7325.07842011198 5464580.011358 1369.30479396506 -13.0666782241682 4731.9413323258 T 1 CATAB v2.0f-lin.ifort 2021-Feb-18 03:12:04 2021-Feb-18 03:12
1996-Feb-03 09:42 4_09:57 Earth 0.3660588725248 0.266689818573071 0.465445643280854 23.7923059906507 23.7920000567003 2450116.904358336 6357.22519877023 4957201.58801835 429.936463149501 1.44094458446806 2895.11105863947 T 1 CATAB v2.0f-lin.ifort 2021-Feb-18 03:12:04 2021-Feb-18 03:12
1997-Jan-13 15:27 9_04:31 Earth 0.420684783392952 0.374404901409084 0.466992339694096 9.55285826182579 9.55219522554834 2450462.144064004 13230.7464097325 2314742.89487517 1419.55972893915 -4.25964415939811 2441.28476075093 T 1 CATAB v2.0f-lin.ifort 2021-Feb-18 03:12:04 2021-Feb-18 03:12
1998-Sep-12 11:40 4_19:24 Earth 0.0588722682020886 0.0474073519046963 0.137983608020518 13.8417319931711 13.8384618824586 2451068.986304421 6924.3555336177 4722919.36162545 1620.24893275358 -53.6924396490124 3979.03985321478 T 1 CATAB v2.0f-lin.ifort 2021-Feb-18 03:12:04 2021-Feb-18 03:12
2001-Nov-14 22:32 9_19:02 Venus 0.120834344803679 0.120578076884261 0.156439103095174 10.5952049339047 10.5935086288365 2452228.438798008 14102.1578849983 4589035.85518697 739.740485435322 86.3889421205186 9880.33375893068 T 1 CATAB v2.0f-lin.ifort 2021-Feb-18 03:12:04 2021-Feb-18 03:12
2006-Sep-02 05:08 6_21:17 Earth 0.137763256851039 0.0738711515789548 0.208647052879471 9.41051858268635 9.40846310469313 2453980.713967868 9917.09861459227 3703823.75263523 1916.68798051328 21.4971774945837 4129.09890930971 T 1 CATAB v2.0f-lin.ifort 2021-Feb-18 03:12:04 2021-Feb-18 03:12
2013-Feb-24 20:47 1_22:11 Earth 0.153329477091596 0.10568788473424 0.201102167118151 8.72190061888413 8.71990799569055 2456348.365986283 2770.74539849767 2389449.79700936 472.198424881328 -4.96546105752085 8084.33665886719 T 1 CATAB v2.0f-lin.ifort 2021-Feb-18 03:12:04 2021-Feb-18 03:12
2014-Jul-26 03:25 8_19:49 Earth 0.277666149488823 0.254377787142822 0.302241480843243 9.92315782343292 9.92219074725985 2456864.642369034 12708.6561160945 1521140.45859063 1998.028494152 38.1687507638838 7831.45265302923 T 1 CATAB v2.0f-lin.ifort 2021-Feb-18 03:12:04 2021-Feb-18 03:12
2016-Oct-26 22:20 2_07:20 Venus 0.0580010372651099 0.0328129036231784 0.0928512161344494 13.6250036662234 13.6222555167027 2457688.430761832 3320.1670649271 1921605.35228174 864.556446440507 32.4554057025221 5907.75228862573 T 1 CATAB v2.0f-lin.ifort 2021-Feb-18 03:12:04 2021-Feb-18 03:12
2021-Feb-18 14:21 < 00:01 Earth 0.00110869464790657 0.00110572981211681 0.00111165909506376 13.1098426938662 12.925225698524 2459264.097999129 0.335190046746139 144.109815743167 2.45961455410764 -0.503121348108015 791.997175964581 T 1 CATAB v2.0f-lin.ifort 2021-Feb-18 03:12:04 2021-Feb-18 03:12
2021-Feb-18 16:51 < 00:01 Moon 0.00335216425484744 0.00334971303780392 0.00335461670646368 13.9613413793248 13.9606410904514 2459264.202403882 0.440080926496546 158.888125916247 2.89491201106233 39.720020741123 66127.5446553682 T 1 CATAB v2.0f-lin.ifort 2021-Feb-18 03:12:04 2021-Feb-18 03:12
2021-Dec-28 05:27 10:01 Earth 0.482640745275727 0.479174388464777 0.486107099522991 10.5073126116504 10.5067871904662 2459576.726843005 600.53533353326 172844.234621538 2117.52052628004 0.200587819652623 331.496654257452 T 1 CATAB v2.0f-lin.ifort 2021-Feb-18 03:12:04 2021-Feb-18 03:12
2022-Jun-05 13:00 23:38 Earth 0.371362233451633 0.371059278628462 0.371667055979502 13.5881809191772 13.5876528853573 2459736.041572260 1418.34990889201 45215.6191599847 3375.03468268476 -70.87876399167 10461.898791815 T 1 CATAB v2.0f-lin.ifort 2021-Feb-18 03:12:04 2021-Feb-18 03:12
2022-Nov-08 08:44 20:11 Earth 0.488072804192426 0.48757573022842 0.488570540043517 10.1744361763519 10.173899603312 2459891.863956469 1211.07400770307 37723.7431940733 1855.90291376258 -48.9775491529101 31719.5701568305 T 1 CATAB v2.0f-lin.ifort 2021-Feb-18 03:12:04 2021-Feb-18 03:12
2023-Aug-10 09:16 21:55 Venus 0.134788147729564 0.117206440307884 0.152425557172105 17.5626092366899 17.5616918772287 2460166.885784947 1314.64652017333 888685.899419819 708.418195664802 8.78264623247133 4293.07526254753 T 1 CATAB v2.0f-lin.ifort 2021-Feb-18 03:12:04 2021-Feb-18 03:12
2023-Sep-15 04:32 18:00 Earth 0.0630198382504309 0.0600925187169448 0.0691400456064868 13.4114538521459 13.4083009516473 2460202.688754234 1080.27122322406 746844.552328409 1993.23484318808 -71.9645160813802 3975.57441205216 T 1 CATAB v2.0f-lin.ifort 2021-Feb-18 03:12:04 2021-Feb-18 03:12
2031-Feb-19 12:01 3_02:02 Earth 0.0073657797847716 0.000471492771631262 0.0851910592598839 12.7467722906925 12.7183618707462 2462917.000742038 4441.99224050143 3881591.32945597 20.455390813584 3.78706534158912 2922.42249820353 T 1 CATAB v2.0f-lin.ifort 2021-Feb-18 03:12:04 2021-Feb-18 03:12
2031-Feb-19 20:12 4_03:18 Moon 0.0086164790097195 0.000418987269932944 0.0845957290023796 12.261003064379 12.2606928453529 2462917.341689944 5958.39769131473 3789236.42876891 26.3093225821215 -2.79200587773469 2331.15135583014 T 1 CATAB v2.0f-lin.ifort 2021-Feb-18 03:12:04 2021-Feb-18 03:12
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]
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