Astronomical database with simulations, visualizations, computations, reviews, articles, and more.

Close Approaches

Earth (within 10 LD, today +60 days, sorted by distance ascending)

Object

Date

Dist [LD]

Dist [AU]

Dist [km]

Vrel [km/s]

Vinf [km/s]

H [mag]

Size [m]

2021 JW2

2024-Apr-19 08:53

1.622638

0.0041651

623,093

5.09

4.96

27.63

2024 EG2

2024-Mar-12 02:11

1.672698

0.0042936

642,316

19.59

19.55

25.836

2023 FN13

2024-Apr-14 10:56

3.314745

0.0085086

1,272,862

4.90

4.84

27.22

2024 EO

2024-Mar-09 01:06

3.609240

0.0092645

1,385,949

19.17

19.16

26.365

2017 SA20

2024-Apr-19 09:48

3.813048

0.0097876

1,464,211

6.19

6.15

28.3

2024 EN

2024-Mar-18 18:34

3.865922

0.0099234

1,484,514

11.96

11.94

24.615

2020 FD

2024-Mar-18 19:11

4.524997

0.0116151

1,737,599

15.08

15.07

27.67

2024 EA2

2024-Mar-10 15:04

5.532212

0.0142005

2,124,370

11.01

10.99

27.44

2024 EX2

2024-Mar-16 16:03

5.828078

0.0149600

2,237,982

6.16

6.13

26.265

2024 DQ

2024-Mar-30 16:59

6.404472

0.0164395

2,459,318

2.87

2.82

24.7

2024 EQ1

2024-Mar-09 12:07

6.563085

0.0168467

2,520,225

17.14

17.13

25.083

2024 EQ

2024-Mar-16 06:31

6.926446

0.0177794

2,659,756

10.71

10.69

25.875

2024 EK

2024-Mar-16 15:29

6.962166

0.0178711

2,673,472

7.62

7.60

26.603

2024 EG

2024-Mar-09 09:02

8.396342

0.0215524

3,224,196

19.20

19.19

24.502

439437

2024-Apr-15 14:50

8.480957

0.0217696

3,256,688

16.49

16.48

18.83

2024 EL1

2024-Mar-13 13:10

8.487103

0.0217854

3,259,048

7.88

7.86

26.372

2023 GC2

2024-Apr-04 00:35

8.722354

0.0223893

3,349,385

5.68

5.66

27.33

2021 GQ5

2024-Apr-13 04:00

8.785660

0.0225518

3,373,694

7.46

7.44

28.51

2021 VH2

2024-Apr-25 09:03

9.283364

0.0238293

3,564,813

2.69

2.65

28.82

2024 DA1

2024-Mar-11 07:38

9.363421

0.0240348

3,595,554

9.94

9.93

24.32

Moon (within 10 LD, today +60 days, sorted by distance ascending)

Object

Date

Dist [LD]

Dist [AU]

Dist [km]

Vrel [km/s]

Vinf [km/s]

H [mag]

Size [m]

2021 JW2

2024-Apr-20 02:04

1.622928

0.0041659

623,204

5.19

5.18

27.63

2024 EG2

2024-Mar-12 06:41

1.629772

0.0041834

625,832

20.11

25.836

2020 FD

2024-Mar-18 17:05

3.529137

0.0090589

1,355,189

16.05

27.67

2024 EO

2024-Mar-09 05:02

3.535026

0.0090740

1,357,450

19.06

26.365

The JPL SSD/CNEOS API service

Diameter Estimation [in kilometers]

A function of absolute magnitude (h) and visual geometric albedo (a) assuming a spherical object with a uniform surface.
Formula in PHP: $D= pow(10,(0.5*(6.259 - log10($a) - 0.4 * $h)))

	A=0.3	A=0.25	A=0.20	A=0.15	A=0.1	A=0.05
H=30	0.00246	0.00269	0.00301	0.00348	0.00426	0.00603
H=29.5	0.00310	0.00339	0.00379	0.00438	0.00536	0.00759
H=29	0.00390	0.00427	0.00478	0.00551	0.00675	0.00955
H=28.5	0.00491	0.00538	0.00601	0.00694	0.00850	0.01202
H=28	0.00618	0.00677	0.00757	0.00874	0.01070	0.01514
H=27.5	0.00778	0.00852	0.00953	0.01100	0.01347	0.01906
H=27	0.00979	0.01073	0.01199	0.01385	0.01696	0.02399
H=26.5	0.01233	0.01351	0.01510	0.01744	0.02136	0.03020
H=26	0.01552	0.01700	0.01901	0.02195	0.02688	0.03802
H=25.5	0.01954	0.02141	0.02393	0.02763	0.03385	0.04786
H=25	0.02460	0.02695	0.03013	0.03479	0.04261	0.06026
H=24.5	0.03097	0.03393	0.03793	0.04380	0.05364	0.07586
H=24	0.03899	0.04271	0.04775	0.05514	0.06753	0.09550
H=23.5	0.04908	0.05377	0.06012	0.06942	0.08502	0.12023
H=23	0.06179	0.06769	0.07568	0.08739	0.10703	0.15136
H=22.5	0.07779	0.08522	0.09528	0.11002	0.13474	0.19055
H=22	0.09794	0.10728	0.11995	0.13850	0.16963	0.23989
H=21.5	0.12329	0.13506	0.15100	0.17436	0.21355	0.30201
H=21	0.15522	0.17003	0.19010	0.21951	0.26884	0.38020
H=20.5	0.19541	0.21406	0.23932	0.27635	0.33845	0.47865
H=20	0.24600	0.26948	0.30129	0.34790	0.42609	0.60258
H=19.5	0.30970	0.33926	0.37930	0.43798	0.53641	0.75860
H=19	0.38989	0.42710	0.47751	0.55138	0.67531	0.95503
H=18.5	0.49084	0.53769	0.60115	0.69415	0.85016	1.20231
H=18	0.61793	0.67691	0.75681	0.87389	1.07029	1.51361
H=17.5	0.77793	0.85218	0.95276	1.10016	1.34741	1.90553
H=17	0.97935	1.07283	1.19946	1.38501	1.69629	2.39892
H=16.5	1.23293	1.35061	1.51003	1.74363	2.13550	3.02006
H=16	1.55217	1.70032	1.90101	2.19510	2.68844	3.80203
H=15.5	1.95407	2.14057	2.39323	2.76347	3.38454	4.78647
H=15	2.46002	2.69482	3.01290	3.47900	4.26089	6.02580
H=14.5	3.09699	3.39258	3.79302	4.37980	5.36414	7.58604
H=14	3.89888	4.27100	4.77513	5.51384	6.75305	9.55026
H=13.5	4.90839	5.37688	6.01153	6.94152	8.50159	12.02306
H=13	6.17930	6.76909	7.56807	8.73885	10.70286	15.13614
H=12.5	7.77928	8.52177	9.52763	11.00156	13.47411	19.05527
H=12	9.79353	10.72828	11.99458	13.85015	16.96290	23.98916
H=11.5	12.32933	13.50610	15.10028	17.43630	21.35502	30.20056
H=11	15.52170	17.00317	19.01013	21.95100	26.88438	38.02025
H=10.5	19.54067	21.40573	23.93233	27.63468	33.84543	47.86466
H=10	24.60024	26.94821	30.12902	34.79000	42.60887	60.25804