|

Asteroid 2019 ON3 flew past Earth at 0.56 LD

ByTeo Blašković
asteroid-2019-on3

Image credit: MPC

A newly discovered asteroid designated 2019 ON3 flew past Earth at 0.56 LD / 0.00142 AU (212 428 km / 131 997 miles) on July 29, 2019. This is the 34th known asteroid to flyby Earth within 1 LD since the start of the year and the 8th this month.

2019 ON3 belongs to the Apollo group of asteroids. It was first observed at Pan-STARRS 2, Haleakala, Hawaii on July 30.

Its estimated diameter is between 7.4 and 16 m (24 –  52 feet).

The object flew past us at 01:19 UTC on July 29 at a speed (relative to the Earth) of 14.16 km/s.

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

 

NEO DATE / TIME UTC DISTANCE LD | AU  Diameter (m)
2019 ON3 July 29 @ 01:19 ±  00:14 0.56 | 0.00143 7.4 m – 16 m
2019 OD3 July 28 @ 02:56 ± < 00:01 0.49 | 0.00126 11 m – 25 m
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 ON3 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.

Share:

Published in the last 24 hours

  1. Mount Pinatubo in the Philippines sits about 7,000 miles from California, yet after it erupted in 1991 the whole planet cooled by about 1°F for nearly two years, because the sulfur it blasted into the sky formed a thin haze that bounced sunlight back into space Epicenter
  2. A tangled sunspot cluster about 93 million miles away doubled in size in a single weekend earlier this month and fired 20 solar flares in one day, and forecasters gave it a small chance of producing an X-class flare, the most powerful kind the Sun is known to unleash
  3. A ring of wind spinning about 19 miles above the Arctic, far higher than any passenger jet flies, has started breaking apart weeks earlier than ever recorded, and forecasters say the cold it was holding in place could spill into the US and Europe within weeks
  4. US flights resume after FAA lifts nationwide ground stop that lasted more than four hours

From around the web