Asteroid 2019 UB8 to fly by Earth at 0.5 LD on October 29

A newly discovered asteroid designated 2019 UB8 will fly by Earth at a distance of 0.50 LD / 0.00127 AU (189 989 km / 118 053 miles) at 06:30 UTC on October 29, 2019. This is the 58^th known asteroid to flyby Earth within 1 lunar distance since the start of the year and the 9^th this month.

2019 UB8 belongs to the Apollo group of asteroids. It was first observed at Mr. Lemmon Survey, Arizona on October 27, two days before its close approach to our planet.

Its estimated diameter is between 4 and 8.9 meters (13 – 29 feet).

The object flew past us at a speed (relative to the Earth) of 10.57 km/s.

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

 

NEO	DATE / TIME UTC	DISTANCE LD | AU	Diameter (m)
2019 UG8	October 29 @ 06:30 ± 00:03	0.50 | 0.00127	4 – 8.9
2019 UO8	October 25 @ 13:30 ± 00:01	0.41 | 0.00105	3.1 – 6.9
2019 UN8	October 23 @ 16:41 ± 00:17	0.93 | 0.00235	3.1 – 6.9
2019 UL3	October 19 @ 22:23 ± 00:08	0.77 | 0.00199	6 – 13
2019 UG	October 18 @ 09:23 ± < 00:01	0.84 | 0.00215	6.8 – 15
2019 UU1	October 18 @ 06:23 ± < 00:01	0.59 | 0.00150	2.1 – 5.1
2019 TN5	October 5 @ 22:38 ± < 00:01	0.32 | 0.00083	5.5 – 12
2019 SP3	October 3 @ 06:36 ± 00:34	0.97 | 0.00248	13 – 30
2019 SM8	October 1 @ 13:56 ± < 00:01	0.41 | ​0.00106	3.8 – 8.6
2019 TD	September 29 @ 18:50 ± 00:13	0.34 | ​0.00087	4.1 – 9.1
2019 TE	September 28 @ 20:31 ± 01:31	0.93 | 0.00238	6.8 – 15
2019 SX8	September 28 @ 07:49 ± 00:38	0.99 | 0.00255	4.6 – 10
2019 SS3	September 22 @ 22:48 ± 00:21	0.73 | 0.00188	15 – 34
2019 SS2	September 21 @ 07:12 ± 00:02	0.30 | ​0.00077	2 – 4.4
2019 SD1	September 21 @ 06:46 ± < 00:01	0.73 | 0.00187	5.5 – 12
2019 SU2	September 21 @ 02:48 ± 00:05	0.19 | 0.00048	2.7 – 6.1
2019 SJ	September 16 @ 18:55 ± 00:03	0.64 | 0.00163	8.6 – 19
2019 RC1	September 7 @ 10:48 ± 00:04	0.48 | ​0.00123	4.5 – 10
2019 RP1	September 5 @ 22:04 ± < 00:01	0.10 | ​0.00025	7.4 – 17
2019 RQ	September 2 @ 16:45 ± < 00:01	0.29 | ​0.00074	2.1 – 4.6
2019 QQ3	August 26 @ 15:14 ± 00:01	0.25 | 0.00064	3.7 – 8.2
2019 QR8	August 26 @ 08:51 ± 01:08	0.80 | ​0.00207	6.6 – 15
2019 QD	August 22 @ 01:28 ± < 00:08	0.78 | 0.00200	4.7 – 11
2019 QH2	August 20 @ 18:12 ± 00:08	0.13 | 0.00033	2.2 – 5
2019 QB1	August 20 @ 11:55 ± 00:08	0.32 | 0.00082	9.3 – 21
2019 ON3	July 29 @ 01:19 ±  00:14	0.56 | 0.00143	7.4 – 16
2019 OD3	July 28 @ 02:56 ± < 00:01	0.49 | 0.00126	11 – 25
2019 OK	July 25 @ 01:22 ± < 00:04	0.19 | ​0.00048	57 – 130
2019 OD	July 24 @ 13:31 ± 00:04	0.93 | ​0.00239	54 – 120
2019 NN3	July 10 @ 16:29 ± < 00:01	0.83 | 0.00214	35 – 77
2019 NF7	July 9 @ 12:07 ± < 00:01	0.98 | 0.00253	6.4 – 14
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

 

There are a total of 21 316 known near-Earth objects (NEOs) as of October 25, 2019, 116 more than on October 20. 108 of them are near-Earth comets (NEC), 900 are asteroids with diameters roughly 1 km (0.62 miles) and larger (NEA-km).

Our sky surveys have discovered a total of 1 926 NEOs since January 1, 2019. 1 839 were discovered during the entire 2018.

Reference:

Asteroid 2019 UB8 at Minor Planet Center; at CNEOS

Featured image credit: MPC

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