Asteroids 2019 YS and YB flew past Earth at 0.17 and 0.43 LD, respectively

Asteroids 2019 YS and YB flew past Earth at 0.17 and 0.43 LD, respectively

Two newly discovered asteroids designated 2019 YS and 2019 YB flew past Earth within 1 lunar distance on December 18, 2019. Since the start of the year, our sky surveys have discovered a total of 75 <1LD asteroids.

2019 YS flew past us at a distance of 0.17 LD / 0.00044 AU (65 823 km / 40 900 miles) at 15:12 UTC. It was first observed at Palomar Mountain--ZTF on December 19, one day after it made a close approach to our planet at a speed (relative to the Earth) of 7.17 km/s.

It belongs to the Apollo group of asteroids and has an estimated diameter between 1.3 and 3 m (4.6 - 9.8 feet).

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

Reference

Asteroid 2019 YS at Minor Planet Center; at CNEOS

Apollo-class asteroid 2019 YB was first observed at Mt. Lemmon Survey, Arizona on December 17, one day before it made a close approach to our planet.

Its estimated diameter is between 3.1 and 7 m (10.1 - 22.9 feet).

The asteroid flew past us at 00:12 UTC at a distance of 0.44 LD / 0.00113 AU (169 045 km / 105 040 miles)

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

Reference

Asteroid 2019 YB at Minor Planet Center; at CNEOS

 

Asteroids detected within 1 lunar distence in 2019 (valid December 26):

NEODATE / TIME UTCDISTANCE LD | AU Diameter (m)
2019 YU2December 23 @ 19:28 ± < 00:010.26 | 0.000668.9 - 20
2019 YSDecember 18 @ 15:12 ± < 00:010.17 | 0.000441.3 - 3
2019 YBDecember 18 @ 00:12 ± 00:03 0.44 | 0.001133.1 - 7
2019 WJ4November 30 @ 20:05 ± < 00:010.85 | 0.002195.5 - 12
2019 WG2November 23 @ 08:44 ± < 00:010.47 | 0.0012126 - 59
2019 WV1November 19 @ 23:45 ± 03:130.72 | ​0.001866.3 - 14
2019 WHNovember 19 @ 08:01 ± < 00:010.22 | ​0.0005716 - 36
2019 VF5November 9 @ 23:16 ± < 00:010.49 | 0.001278.3 - 19
2019 VB5November 9 @ 17:29 ± < 00:010.38 | 0.000971.2 - 2.7
2019 VS4November 6 @ 16:28 ± < 00:010.36 | 0.000939.3 - 21
2019 VRNovember 4 @ 10:35 ± < 00:010.35 | 0.000916.5 - 14
2019 VDNovember 4 @ 09:55 ± 00:010.45 | 0.001168.7 - 19
2019 VANovember 2 @ 17:41 ± 00:12 0.28 | 0.000725.6 - 12
2019 UG11November 1 @ 20:42 ± 00:020.55 | 0.0014013 - 29
2019 UN13October 31 @ 14:45 ± < 00:010.03 | 8.43e-51 - 2.2
2019 UB8October 29 @ 06:30 ± 00:030.50 | 0.001274 - 8.9
2019 UD10October 27 @ 10:08 ± 00:020.44 | 0.001126.3 - 14
2019 UX12October 26 @ 03:08 ± 00:040.99 | 0.002554.9 - 11
2019 UO8October 25 @ 13:30 ± 00:010.41 | 0.001053.1 - 6.9
2019 UN8October 23 @ 16:41 ± 00:170.93 | 0.00235 3.1 - 6.9
2019 UL3October 19 @ 22:23 ± 00:080.77 | 0.001996 - 13
2019 UGOctober 18 @ 09:23 ± < 00:010.84 | 0.002156.8 - 15
2019 UU1October 18 @ 06:23 ± < 00:010.59 | 0.001502.1 - 5.1
2019 TN5October 5 @ 22:38 ± < 00:010.32 | 0.000835.5 - 12
2019 SP3October 3 @ 06:36 ± 00:340.97 | 0.0024813 - 30
2019 SM8October 1 @ 13:56 ± < 00:01 0.41 | ​0.001063.8 - 8.6
2019 TDSeptember 29 @ 18:50 ± 00:130.34 | ​0.000874.1 - 9.1
2019 TESeptember 28 @ 20:31 ± 01:310.93 | 0.002386.8 - 15
2019 SX8September 28 @ 07:49 ± 00:380.99 | 0.002554.6 - 10
2019 SS3September 22 @ 22:48 ± 00:210.73 | 0.0018815 - 34
2019 SS2September 21 @ 07:12 ± 00:020.30 | ​0.000772 - 4.4
2019 SD1September 21 @ 06:46 ± < 00:01 0.73 | 0.001875.5 - 12
2019 SU2September 21 @ 02:48 ± 00:050.19 | 0.000482.7 - 6.1
2019 SJSeptember 16 @ 18:55 ± 00:030.64 | 0.001638.6 - 19
2019 RC1September 7 @ 10:48 ± 00:040.48 | ​0.001234.5 - 10
2019 RP1September 5 @ 22:04 ± < 00:01 0.10 | ​0.000257.4 - 17
2019 RQSeptember 2 @ 16:45 ± < 00:01 0.29 | ​0.000742.1 - 4.6
2019 QQ3August 26 @ 15:14 ± 00:010.25 | 0.000643.7 - 8.2
2019 QR8August 26 @ 08:51 ± 01:080.80 | 0.002076.6 - 15
2019 QDAugust 22 @ 01:28 ± < 00:08 0.78 | 0.002004.7 - 11
2019 QH2August 20 @ 18:12 ± 00:080.13 | 0.000332.2 - 5
2019 QB1August 20 @ 11:55 ± 00:080.32 | 0.000829.3 - 21
2019 ON3July 29 @ 01:19 ±  00:140.56 | 0.001437.4 - 16
2019 OD3July 28 @ 02:56 ± < 00:010.49 | 0.0012611 - 25
2019 OKJuly 25 @ 01:22 ± < 00:040.19 | ​0.0004857 - 130
2019 ODJuly 24 @ 13:31 ± 00:040.93 | ​0.0023954 - 120
2019 NN3July 10 @ 16:29 ± < 00:010.83 | 0.0021435 - 77
2019 NF7July 9 @ 12:07 ± < 00:01 0.98 | 0.002536.4 - 14
2019 MB4July 9 @ 07:20 ± < 00:010.82 | 0.0021117 - 38
2019 NK1July 2 @ 09:48 ± 00:050.69 | 0.001772.9 - 6.5
2019 LW4June 8 @ 17:04 ± < 00:010.65 | ​​0.001669.3 - 21
2019 LY4June 6 @ 01:30 ± < 00:010.22 | ​​0.000567.3 - 16
2019 KTMay 28 @ 03:48 ± < 00:010.85 | ​0.0021713 - 29
2019 JH2May 16 @ 00:06 ± < 00:010.19 | ​0.000483.1 - 7
2019 JY2May 5 @ 17:12 ± < 00:010.38 | 0.000983.3 - 7.3
2019 JX1May 2 @ 12:39 ± 00:020.47 | 0.001203.8 - 8.6
2019 JKApril 30 @ 08:12 UTC ± 00:010.69 | 0.001787.1 - 16
2019 HEApril 20 @ 21:12 ± < 00:010.58 | 0.0014913 - 30
2019 GC6April 18 @ 06:39 ± 00:290.57 | 0.0014713 - 28
2019 GN20April 12 @ 07:06 ± < 00:010.98 | 0.0025314 - 31
2019 FP21March 31 @ 19:00  ±  07:460.93 | 0.002383 - 6.6
2019 FV1March 31 @ 05:27 ± < 00:010.87 | 0.002234.6 - 10
2019 FC1March 28 @ 05:46 ± < 00:010.27 | 0.0006920 - 45
2019 FQMarch 23 @ 18:17 UTC ± < 00:010.86 | 0.0022010 - 23
2019 EA2March 22 @ 01:53 UTC ± 00:020.80 | 0.0020518 - 40
2019 FAMarch 16 @ 01:14 UTC ± < 00:010.60 | 0.001544.9 - 11
2019 EN2March 13 @ 23:38 UTC ± < 00:010.86 | 0.002218 - 18
2019 EH1March 1 @ 17:38 UTC ± < 00:010.06 | 0.000162.5 - 5.7
2019 DFFebruary 26 @ 21:21 UTC  ± 00:090.47 | 0.001203.0 - 6.7
2019 DG2Febraury 26 @ 07:39 UTC ± 07:390.61 | 0.001585.4 - 12
2019 CN5February 11 @ 07:23 UTC ± 00:030.31 | 0.000797.3 - 16
2019 BZ3January 27 @ 23:29 ± < 00:010.13 | 0.00032 4.8 - 11
2019 BV1January 24 @ 20:53 ± < 00:010.35 | 0.00090 4.8 - 11
2019 BOJanuary 16 @ 01:13 ± 00:020.18 | 0.00046 6.3 - 14
2019 AE9January 12 @ 11:09 ± < 00:010.26 | 0.00067 9.9 - 22
2019 AS5January 8 @ 00:37 ± < 00:010.04 | 0.00010 0.92 - 2.1


Featured image credit: MPC

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