Asteroid 2019 NN3 to flyby Earth at 0.83 lunar distances on July 10 - the largest since the start of the year

Posted by Teo Blašković on July 8, 2019 at 09:34 UTC (1 year ago)
Categories: Featured articles, Near-Earth Objects

A newly discovered asteroid designated 2019 NN3 will flyby Earth at a distance of 0.83 LD / 0.00214 AU (320 139 km / 198 925 miles) on July 10, 2019. This is the largest known asteroid to flyby Earth within 1 lunar distance since the start of the year. It comes just one day after 2019 MB4 at 0.82 LD.

It was first observed at ATLAS-MLO, Mauna Loa observatory in Hawaii on July 7, 2019.

Its estimated diameter is between 35 and 77 m (114 - 252 feet) - the largest since the start of the year.

The same as 2019 MB4, this object belongs to the Amor group of asteroids - the orbital perihelion of these objects is close to, but greater than, the orbital aphelion of Earth, with most Amors crossing the orbit of Mars.

This is the 29^th known asteroid and the largest to flyby Earth within 1 LD since the start of the year.

NEO	DATE / TIME UTC	DISTANCE LD \| AU	Diameter (m)
2019 NN3	July 10 @ 16:29 ± < 00:01	0.83 \| 0.00214	35 - 77
2019 MB4	July 9 @ 07:20 ± < 00:01	0.82 \| 0.00211	17 - 38
2019 NK1	July 2 @ 09:48 ± 00:05	0.69 \| 0.00177	2.9 - 6.5
2019 LW4	June 8 @ 17:04 ± < 00:01	0.65 \| 0.00166	9.3 - 21
2019 LY4	June 6 @ 01:30 ± < 00:01	0.22 \| 0.00056	7.3 - 16
2019 KT	May 28 @ 03:48 ± < 00:01	0.85 \| 0.00217	13 - 29
2019 JH2	May 16 @ 00:06 ± < 00:01	0.19 \| 0.00048	3.1 - 7
2019 JY2	May 5 @ 17:12 ± < 00:01	0.38 \| 0.00098	3.3 - 7.3
2019 JX1	May 2 @ 12:39 ± 00:02	0.47 \| 0.00120	3.8 - 8.6
2019 JK	April 30 @ 08:12 UTC ± 00:01	0.69 \| 0.00178	7.1 - 16
2019 HE	April 20 @ 21:12 ± < 00:01	0.58 \| 0.00149	13 - 30
2019 GC6	April 18 @ 06:39 ± 00:29	0.57 \| 0.00147	13 - 28
2019 GN20	April 12 @ 07:06 ± < 00:01	0.98 \| 0.00253	14 - 31
2019 FP21	March 31 @ 19:00 ± 07:46	0.93 \| 0.00238	3 - 6.6
2019 FV1	March 31 @ 05:27 ± < 00:01	0.87 \| 0.00223	4.6 - 10
2019 FC1	March 28 @ 05:46 ± < 00:01	0.27 \| 0.00069	20 - 45
2019 FQ	March 23 @ 18:17 UTC ± < 00:01	0.86 \| 0.00220	10 - 23
2019 EA2	March 22 @ 01:53 UTC ± 00:02	0.80 \| 0.00205	18 - 40
2019 FA	March 16 @ 01:14 UTC ± < 00:01	0.60 \| 0.00154	4.9 - 11
2019 EN2	March 13 @ 23:38 UTC ± < 00:01	0.86 \| 0.00221	8 - 18
2019 EH1	March 1 @ 17:38 UTC ± < 00:01	0.06 \| 0.00016	2.5 - 5.7
2019 DF	February 26 @ 21:21 UTC ± 00:09	0.47 \| 0.00120	3.0 - 6.7
2019 DG2	Febraury 26 @ 07:39 UTC ± 07:39	0.61 \| 0.00158	5.4 - 12
2019 CN5	February 11 @ 07:23 UTC ± 00:03	0.31 \| 0.00079	7.3 - 16
2019 BZ3	January 27 @ 23:29 ± < 00:01	0.13 \| 0.00032	4.8 - 11
2019 BV1	January 24 @ 20:53 ± < 00:01	0.35 \| 0.00090	4.8 - 11
2019 BO	January 16 @ 01:13 ± 00:02	0.18 \| 0.00046	6.3 - 14
2019 AE9	January 12 @ 11:09 ± < 00:01	0.26 \| 0.00067	9.9 - 22
2019 AS5	January 8 @ 00:37 ± < 00:01	0.04 \| 0.00010	0.92 - 2.1