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(2020 OA4)
Classification: Amor [NEO]          SPK-ID: 54049764
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | 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.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .4605526886517758 2.1793e-05  
a 2.034928003275744 8.8455e-05 au
q 1.09773644015431 3.3743e-06 au
i 7.741253605268877 0.00025711 deg
node 338.4315738058501 0.00018346 deg
peri 339.7822239301943 0.00011534 deg
M 337.2517724383688 0.0015105 deg
tp 2459067.498805919693
(2020-Aug-05.99880592)
8.8883e-05 TDB
period 1060.283490911237
2.90
0.069133
0.0001893
d
yr
n .3395318356702943 2.2138e-05 deg/d
Q 2.972119566397177 0.00012919 au
  Orbit Determination Parameters
   # obs. used (total)      59  
   data-arc span      56 days  
   first obs. used      2020-07-23  
   last obs. used      2020-09-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      5  
   norm. resid. RMS      .40033  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Sep-18 07:32:52  

Additional Information
 Earth MOID = .0944072 au 
 Jupiter MOID = 2.3692 au 
 T_jup = 3.657 
[ 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 22.409   .30106 9 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
1927-Sep-08 18:41 6_03:48 Earth 0.308506213966589 0.210265627665332 0.407402885189092 12.9048774798827 12.9042082030116 2425132.278761380 8868.05967165577 4966182.59691011 20.5763164789383 7.81123955457557 247933.72602579 T 9 CATAB v2.0f-lin.ifort 2020-Sep-18 07:32:53 2020-Sep-18 07:33
1930-Jul-12 22:45 8_08:39 Earth 0.326501260095222 0.234567304872573 0.420599865075939 12.1009212002319 12.1002467946374 2426170.447693427 12039.1329120155 4824383.39674066 48.0379721763618 15.3046915157019 181087.191478527 T 9 CATAB v2.0f-lin.ifort 2020-Sep-18 07:32:53 2020-Sep-18 07:33
1959-Aug-23 09:04 4_16:37 Earth 0.111382807617176 0.0914406377726489 0.135893060944941 7.22167925520195 7.218365994287 2436803.877863757 6756.5566276293 1583382.60422249 23.3287706886978 44.4422543629507 408197.298776019 T 9 CATAB v2.0f-lin.ifort 2020-Sep-18 07:32:53 2020-Sep-18 07:33
1988-Sep-14 11:12 2_02:04 Earth 0.382055812408361 0.345520488428481 0.418611100527064 15.2249567450186 15.2244986706291 2447418.966576937 3004.30661323754 1827563.25911738 18.7547234262474 4.33426616286415 189192.722211849 T 9 CATAB v2.0f-lin.ifort 2020-Sep-18 07:32:53 2020-Sep-18 07:33
1991-Jul-18 14:36 3_11:38 Earth 0.250625411572504 0.219348326497939 0.282632850561209 10.279003748064 10.2779694205434 2448456.108001201 5018.44250134037 1716163.44813912 31.1643094244355 22.9835088933629 292511.805028698 T 9 CATAB v2.0f-lin.ifort 2020-Sep-18 07:32:53 2020-Sep-18 07:33
2020-Aug-05 16:40 < 00:01 Earth 0.129402535215985 0.129387741857946 0.129417328572597 6.77387128318903 6.7708308875041 2459067.194157671 0.306837276064581 737.373396426659 24.0253426242489 -1.77334457121404 20798.5707541801 T 9 CATAB v2.0f-lin.ifort 2020-Sep-18 07:32:53 2020-Sep-18 07:33
2049-Aug-21 18:17 3_14:53 Earth 0.103373723446246 0.0928052777426059 0.116346175440832 6.94154431183813 6.9378301373704 2469675.261926266 5212.50109969723 983039.781333729 26.165313365818 52.872746268195 394911.205906237 T 9 CATAB v2.0f-lin.ifort 2020-Sep-18 07:32:53 2020-Sep-18 07:33
2078-Sep-18 05:06 6_22:50 Earth 0.445695043133222 0.318752021623886 0.572760701027717 16.7163992019419 16.7160415698652 2480294.712768668 10009.7009742561 6343915.08048141 19.1831549966385 3.22599542167726 161872.578435606 T 9 CATAB v2.0f-lin.ifort 2020-Sep-18 07:32:53 2020-Sep-18 07:33
2139-Sep-13 10:17 6_20:06 Earth 0.296991172241894 0.189581620221376 0.40482870924325 12.9182747350822 12.9175802291271 2502568.928216571 9845.57988527114 5396129.04341915 19.5191635657863 5.61401953686297 180551.413719047 T 9 CATAB v2.0f-lin.ifort 2020-Sep-18 07:32:53 2020-Sep-18 07:33
2142-Jul-14 02:37 8_09:46 Earth 0.330758373782801 0.23512321011544 0.42827780903709 12.7605909497586 12.7599596415089 2503603.609198197 12106.4460721963 4974444.17175069 47.0231699471129 13.8768921657419 177046.162370774 T 9 CATAB v2.0f-lin.ifort 2020-Sep-18 07:32:53 2020-Sep-18 07:33
2168-Sep-22 14:11 02:32 Earth 0.471810542951048 0.469604899432167 0.474016187503465 17.7554342385108 17.7551161724668 2513171.090645612 151.733365316672 109992.062718274 19.4998278630618 0.708493293254751 36841.9838743473 T 9 CATAB v2.0f-lin.ifort 2020-Sep-18 07:32:53 2020-Sep-18 07:33
2171-Aug-03 11:38 1_03:15 Earth 0.164098682956926 0.156925003659733 0.171535509916362 7.5694621149203 7.56731673707727 2514215.984718017 1635.09383535576 490054.262447835 12.4181748910318 41.9515331490853 713686.775041294 T 9 CATAB v2.0f-lin.ifort 2020-Sep-18 07:32:53 2020-Sep-18 07:33
2200-Sep-01 06:36 9_18:57 Earth 0.152637490965034 0.0691160390665511 0.249995188281892 8.4567183394375 8.45465389934406 2524836.775341394 14096.6140779849 5070434.00659472 23.630784537024 21.6383257401979 293027.428360763 T 9 CATAB v2.0f-lin.ifort 2020-Sep-18 07:32:53 2020-Sep-18 07:33
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]
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