Asteroid 2019 ON3 flew past Earth at 0.56 LD
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
Featured image credit: MPC
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