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Asteroid 2019 QH2 flew past Earth at 0.13 LD – fourth closest of the year

ByTeo Blašković
asteroid-2019-qh2

Image credit: CNEOS

A newly discovered asteroid designated 2019 QH2 flew past Earth at 0.13 LD / 0.00033 AU (49 367 km / 30 675 miles) on August 20, 2019. This is the 37th known asteroid to flyby Earth within 1 lunar distance since the start of the year and the fourth closest after 2019 AS5, 2019 EH1 and 2019 BZ3.

Asteroid 2019 QH2 belongs to the Apollo group of asteroids. It was first observed at Mt. Lemmon Survey, Arizona on August 21, one day after its close approach to Earth.

Its estimated diameter is between 2.2 and 5 m (7.2 – 16.4 feet) and it flew past us at a speed (relative to the Earth) of 14.07 km/s at 18:12 UTC.

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

This is the 37th known asteroid to flyby Earth within 1 lunar distance since the start of the year and the fourth closest after 2019 AS5 on January 8 at 0.00010 AU, 2019 EH1 on March 1 at 0.00016 AU and 2019 BZ 3 on January 27 at 0.00032 AU.

 

NEO DATE / TIME UTC DISTANCE LD | AU  Diameter (m)
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 m – 16
2019 OD3 July 28 @ 02:56 ± < 00:01 0.49 | 0.00126 11 m – 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

 

References

Asteroid 2019 QH2 at CNEOS; at Minor Planet Center

Teo Blašković founded The Watchers in 2011 and edited it until 2026, covering seismic and volcanic activity, extreme weather, space weather and near-Earth objects. Articles on this page are his archive.

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