Apparent close approaches between near-Earth asteroids and quasars - Precise astrometry and frame linking

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Volume 509 (January 2010)

A&A, 509 (2010) A27

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Table 2:

Closest apparent approaches of relatively bright asteroid and quasars in 2010-2018.
Quasar								Event	Asteroid				UCAC2
LQAC Flag	$\alpha$ ( $^\circ$ )	$\delta$ ( $^\circ$ )	U	B	V	R	I	(TT)	Nr	Mag	Dist( $^{\prime\prime}$ )	SEP( $^\circ$ )	Stars
ABC	14.45368060000	30.35244780000	-	12.28	-	11.26	10.15	2010/ 1/30.27665	85 804	19.76	26.30	76.5	20
-B-	224.36129875900	-35.65276997200	-	18.12	-	18.40	17.36	2010/ 2/03.92417	163 081	19.51	1.34	82.8	36
-BC	29.73447434100	13.11742784440	19.02	19.29	18.66	18.83	18.60	2010/ 2/08.77972	9950	19.51	9.29	72.5	10
ABC	66.19517520000	0.60175828600	15.66	16.15	16.05	16.42	15.38	2010/ 3/08.18221	143 947	18.87	10.07	77.9	13
-BC	143.80683925500	9.25217559443	19.83	19.75	19.82	19.34	19.09	2010/ 5/02.55875	159 518	19.90	4.66	101.1	6
-B-	3.47554567654	-4.39785955530	-	19.48	-	19.17	16.73	2010/ 5/28.85015	177 255	19.69	1.13	65.9	9
-B-	269.49510424900	5.53000657187	-	-	-	18.52	17.52	2010/ 6/05.79201	161 998	17.21	4.57	147.9	76
ABC	158.26544900000	41.26839800000	19.46	18.27	18.20	19.15	19.06	2010/ 6/16.68266	162 980	18.61	27.43	62.7	7
-B-	353.83505035200	-1.51933102760	-	18.67	18.78	17.97	17.25	2010/ 6/28.94995	19 764	17.02	14.88	103.2	6
ABC	49.96356970000	19.02535860000	-	19.92	18.81	17.96	17.38	2010/ 8/01.15159	4954	15.01	10.00	76.1	17
ABC	254.53754800000	7.69098354000	-	19.85	-	19.24	18.40	2010/ 8/31.16228	142 464	19.50	8.67	94.1	28
ABC	51.40339310000	22.40010150000	-	19.96	19.11	19.00	17.94	2010/10/25.58796	88 959	18.03	28.57	156.9	13
-B-	318.82681483400	-14.27871440500	-	18.90	-	18.12	17.82	2010/12/05.65826	164 400	18.78	5.50	63.6	26
-B-	194.78525843200	-23.17740399100	-	18.15	-	16.14	16.36	2011/ 2/11.39651	3288	15.56	19.02	118.3	10
-B-	256.58540625500	12.14994287490	-	19.34	18.73	18.69	18.73	2011/ 2/27.77037	13 651	18.66	3.56	85.6	32
-BC	164.91267787600	20.95609880280	-	17.91	18.14	18.34	17.89	2011/ 4/08.00906	7480	19.93	28.30	138.4	6
-B-	141.45818503600	16.97005716930	-	17.45	17.49	16.83	16.80	2011/ 5/31.54826	141 525	19.28	25.50	68.9	12
-B-	183.37370504500	-24.88692350200	-	19.90	-	19.50	18.85	2011/ 5/31.60402	172 722	17.94	18.41	121.2	16
-B-	351.89993707300	15.55265971950	18.15	18.01	17.64	17.60	17.57	2011/ 8/12.23487	138 524	17.20	2.94	137.0	7
ABC	337.66782700000	-39.71446300000	-	17.40	18.50	16.30	15.90	2011/10/05.83635	169 675	18.09	13.60	125.9	13
-B-	57.79573718700	-11.88962904100	-	19.87	-	18.52	18.66	2011/10/17.63182	8035	19.41	13.42	138.6	11
-B-	164.57458681200	19.86413071100	15.88	16.69	16.25	16.96	16.48	2011/11/23.06005	162 474	19.34	5.60	82.3	8
-BC	128.06683426600	18.53670370550	-	17.61	17.05	15.36	14.77	2011/12/01.14132	141 018	19.77	6.16	122.6	21
-B-	36.42462453840	11.57374025550	-	19.09	18.00	18.34	17.60	2011/12/11.87625	162 273	19.36	10.54	138.5	10
-BC	325.65375701500	-4.62875356990	-	16.97	-	16.33	16.34	2011/12/15.94816	172 034	19.96	16.41	63.2	22
ABC	359.88825300000	38.84508840000	-	19.40	-	18.66	18.41	2011/12/29.56623	90 147	18.63	21.02	98.5	20
ABC	93.45891330000	26.07686660000	-	18.50	18.00	17.14	16.52	2012/ 1/30.33214	25 916	19.10	13.67	143.4	71
ABC	124.56666500000	42.37928190000	-	18.83	18.50	18.49	17.06	2012/ 2/19.46045	143 651	18.20	3.38	140.9	9
-BC	324.65492134000	-24.66512953600	-	18.73	18.60	18.68	19.54	2012/ 4/29.95302	2063	19.99	12.10	81.1	17
-BC	340.45715538600	9.89790138350	-	18.54	19.50	18.06	17.80	2012/ 5/06.61321	3752	19.56	6.98	61.8	15
-B-	127.70726680700	-6.60555639420	-	19.63	-	18.83	19.21	2012/ 6/02.45217	162 186	17.12	28.22	62.9	26
-BC	318.74305675800	28.54922137470	-	19.21	19.03	18.92	18.06	2012/ 7/29.79382	20 460	18.52	28.51	132.0	55
-B-	212.29990063500	-23.26378150800	-	15.46	-	13.95	14.06	2012/ 8/05.03878	433	13.98	22.59	85.3	22
-B-	104.24658403300	3.26484666930	-	19.64	18.19	18.26	17.70	2012/ 9/11.18009	2063	17.56	15.35	65.2	82
A-	98.94378310000	-75.27133800000	15.48	16.08	15.75	15.87	15.35	2012/ 9/14.80671	6455	14.78	7.42	89.0	33
ABC	294.86107400000	-15.42862700000	-	19.49	19.40	18.78	18.42	2012/10/16.05672	3908	17.89	1.83	91.1	59
-BC	278.04602704800	-20.66338976900	-	17.54	-	17.07	16.05	2012/10/24.29225	5626	18.85	17.58	66.5	219
-BC	52.31397865610	35.16833078880	-	17.86	17.47	17.50	16.77	2012/10/31.88390	99 907	15.38	28.92	154.7	40
-BC	114.24197378100	26.08054016960	-	18.56	18.39	18.23	17.92	2012/11/07.73283	11 284	18.67	19.51	113.7	30
-C	205.75074800000	28.73541600000	16.80	17.00	17.07	17.23	16.96	2012/11/28.80342	137 924	18.59	4.88	62.8	13
-BC	201.83741250000	43.44110812500	19.78	19.63	19.66	19.18	18.91	2012/12/11.40715	137 924	18.28	26.28	84.5	6
-B-	7.26496775845	5.15968548032	-	19.44	18.71	18.39	17.83	2012/12/15.26079	3908	17.37	21.27	105.2	8
-B-	337.91510926800	-14.37304762700	-	17.94	-	17.32	16.86	2012/12/22.42420	154 715	19.93	20.92	63.6	11
-BC	356.77015419600	51.70496570260	-	12.70	12.43	10.49	10.64	2013/ 2/11.02500	6047	18.04	5.66	71.5	28
-B-	177.76334857000	-17.39995640200	-	18.39	19.00	18.59	18.15	2013/ 2/23.31019	96 315	16.90	15.94	145.6	8
-B-	63.36766506830	-6.25041426110	-	18.47	-	17.29	16.96	2013/ 3/16.79103	17 188	18.64	20.63	66.9	18
-B-	325.19525049500	-19.39890033200	-	19.08	-	19.01	18.56	2013/ 4/29.06758	85 804	18.22	5.33	77.7	14
-BC	346.15181835400	23.51878082770	-	19.61	18.98	19.10	18.55	2013/ 6/19.96865	24 445	18.22	1.88	91.2	20
-BC	32.80490571260	10.85966627750	-	16.10	15.79	15.11	14.50	2013/ 6/28.60267	35 107	18.87	14.46	62.6	18
-B-	235.14396074600	-39.10493467400	-	16.66	17.57	16.36	15.07	2013/ 9/12.69286	7839	19.68	5.18	73.1	93
ABC	294.31757200000	-39.96709800000	-	17.66	-	17.61	17.34	2013/ 9/20.30159	86 829	19.60	4.11	110.9	40
-BC	112.08586791300	21.88510843600	-	19.00	18.70	18.25	18.31	2013/10/06.09328	18 109	19.76	10.91	82.4	36
-B-	289.43674716900	-19.35878042200	-	15.68	15.59	15.73	14.77	2013/11/03.28598	86 039	18.74	17.79	67.5	146
-B-	137.30065629800	8.59474976433	18.63	18.06	17.57	17.75	17.29	2013/11/08.51223	6611	17.83	23.36	88.9	24
ABC	92.42062300000	-15.71129800000	-	-	17.00	-	-	2013/11/18.82271	138 883	19.14	17.30	128.5	31
-B-	326.87968940700	-36.03091192400	-	19.29	18.20	17.93	18.20	2013/12/04.91843	3361	18.06	17.02	65.8	11
ABC	341.57596700000	-12.11424400000	16.02	16.63	16.45	16.26	15.94	2013/12/16.25649	5189	19.75	11.07	74.2	15
-B-	358.53823296600	-0.32998770810	18.41	18.11	19.00	17.92	17.70	2013/12/16.89255	163 696	16.81	24.07	93.6	10
ABC	149.58196500000	47.41884510000	18.54	18.69	18.00	18.48	18.18	2013/12/26.25601	53 435	15.71	12.53	130.6	8
-B-	3.76038353741	-18.21413417100	-	19.69	-	19.11	18.77	2014/ 1/06.97225	10 563	19.42	25.86	70.6	6
-B-	239.95684296200	-5.52293551650	-	18.72	-	18.27	17.51	2014/ 2/03.57772	25 916	17.35	17.27	76.0	18
-B-	100.02998454100	-12.88765785200	-	16.58	-	15.27	15.37	2014/ 3/06.11441	138 947	18.65	12.83	111.5	81
-BC	315.25691655400	-29.55773223000	-	18.50	-	18.20	18.08	2014/ 4/15.52298	39 572	18.66	9.70	76.4	22
-B-	315.97184003100	-9.56157044720	-	14.55	-	12.87	13.34	2014/ 4/20.81518	66 391	18.24	10.78	75.0	13
-B-	233.01071534100	-27.27719966100	-	19.16	-	18.52	18.12	2014/ 6/02.09057	163 335	19.23	18.04	164.0	38
-B-	190.15559277500	-11.35688821900	-	19.41	-	18.82	18.80	2014/ 6/14.49840	37 336	19.77	11.35	110.5	9
ABC	166.78622600000	-44.81878300000	-	17.70	18.20	17.29	16.81	2014/ 7/15.67735	17 511	16.88	29.94	81.5	56
-BC	44.71052633920	5.68556629154	-	19.79	18.71	19.37	-	2014/ 9/08.57467	4401	17.83	3.08	121.1	13
-BC	313.28901671100	22.80041294990	-	19.35	-	17.88	17.89	2014/ 9/09.64123	138 847	18.54	26.76	136.2	74
ABC	256.89339700000	1.81269423000	-	-	18.90	-	-	2014/ 9/30.47234	68 548	18.32	5.55	70.6	27
ABC	75.30337450000	-1.98729340000	-	19.06	18.40	19.06	18.12	2014/10/18.24621	154 300	18.99	9.03	126.4	20
ABC	66.17601550000	-37.93910700000	17.46	18.15	18.08	17.75	17.95	2014/11/24.83669	177 016	19.86	18.18	121.2	16
-B-	1.32472419738	-16.80129968800	-	18.10	-	17.96	17.44	2014/11/25.84672	136 897	19.42	20.84	110.2	8
ABC	209.27530900000	-17.73386200000	-	19.24	-	18.71	18.57	2014/12/30.43227	137 108	19.45	16.11	65.1	11
-BC	115.77127832100	17.24011471370	-	19.16	-	17.16	17.92	2015/ 1/06.10557	85 804	15.14	22.07	169.8	43
ABC	169.61232300000	-46.57083400000	16.86	17.30	17.00	16.52	16.00	2015/ 1/14.92734	4957	18.70	10.17	96.8	59
-BC	245.99271626400	7.69181967523	18.30	19.57	18.83	17.89	17.78	2015/ 2/13.30792	7822	19.64	15.44	82.5	23
ABC	111.46100000000	-0.91570677000	-	18.13	-	16.06	15.93	2015/ 2/14.03439	5587	18.87	6.70	142.0	81
-B-	350.93596467900	-16.21447855500	-	18.52	-	17.95	17.54	2015/ 5/16.92272	7335	18.08	20.25	70.7	8
-B-	42.06178386210	4.57801731957	-	9.66	10.17	8.13	8.43	2015/ 9/14.43244	154 807	18.16	11.70	129.1	12
-B-	122.61009983200	10.17805432740	-	17.73	18.07	17.34	17.00	2015/10/10.60825	66 146	15.76	21.10	74.4	25
-B-	296.31634495200	9.88321214146	-	19.54	-	-	-	2015/11/06.41606	99 907	18.60	19.56	78.9	111
-B-	313.96333061800	-12.57895475200	-	19.59	-	18.28	18.75	2015/11/26.66597	31 345	19.95	23.19	69.0	23
-B-	172.14808848600	21.04371209670	-	18.92	19.26	18.65	19.15	2016/ 3/13.79377	8013	17.71	8.62	161.5	10
-B-	177.56917783400	43.53497377770	-	19.74	-	19.00	-	2016/ 5/27.99510	154 652	19.69	8.96	90.4	6
-B-	213.83680802100	-9.93286920220	-	17.50	-	-	-	2016/ 8/01.55023	8013	18.68	2.51	85.5	12
-B-	207.65059987700	-16.58042146600	-	15.23	-	12.88	13.89	2016/ 8/09.54536	7092	18.64	12.30	74.5	12
-B-	235.14396074600	-39.10493467400	-	16.66	17.57	16.36	15.07	2016/ 8/28.65062	162 463	19.81	4.22	86.7	93
-BC	46.17234352420	33.81209181670	-	18.13	18.70	18.45	18.83	2016/ 9/04.15924	5836	14.87	12.81	107.8	19
ABC	66.19517520000	0.60175828600	15.66	16.15	16.05	16.42	15.38	2016/ 9/09.45707	52 750	17.36	21.28	101.7	13
-B-	97.47929582590	-5.08335316380	-	19.53	-	18.85	18.58	2016/ 9/27.42641	52 750	17.04	11.59	86.5	103
-B-	308.22631251000	-21.42105554400	-	19.53	-	18.33	17.68	2016/11/06.85710	163 249	18.66	18.15	80.6	37
AB-	61.95179580000	-12.19351700000	14.93	15.53	15.35	14.43	13.91	2016/11/23.05857	96 590	13.23	10.31	147.3	13
-BC	356.77015419600	51.70496570260	-	12.70	12.43	10.49	10.64	2016/12/08.95877	152 563	18.08	4.43	114.3	28
ABC	111.32003200000	14.42048520000	-	18.59	17.75	17.53	17.02	2016/12/28.54474	12 923	19.70	7.25	164.3	40
-B-	119.21124569500	-15.70151000500	-	19.13	-	18.32	17.87	2017/ 2/19.79410	1036	14.73	5.86	137.1	102
-B-	301.32205480700	-18.36758969100	-	18.51	-	18.02	17.87	2017/ 3/25.08205	68 950	18.53	10.07	64.8	42
ABC	350.88314100000	-3.28472880000	-	19.34	18.60	18.38	17.98	2017/ 5/21.05002	177 614	19.30	18.15	69.6	12
-B-	341.96933774900	-12.62214477800	-	18.38	-	17.93	17.63	2017/ 5/27.81605	5660	18.67	26.34	87.9	8
-B-	337.91510926800	-14.37304762700	-	17.94	-	17.32	16.86	2017/ 6/21.47208	96 631	19.03	22.48	115.7	11
ABC	343.28070500000	19.70961910000	-	17.19	16.66	16.26	15.79	2017/ 9/08.99474	90 075	15.69	15.14	154.6	16
-BC	128.47452241500	42.40051402490	17.82	17.89	18.72	16.83	16.50	2017/ 9/23.24605	137 078	18.82	28.23	62.8	16
-B-	9.44226239522	36.98635632480	-	19.49	18.21	17.51	16.93	2017/10/08.61844	31 221	19.73	28.73	148.7	35
-B-	31.81503808100	-38.95085383600	-	18.99	-	16.29	16.39	2017/11/22.77538	2329	16.36	11.29	115.9	11
ABC	323.54295700000	-1.88812180000	-	19.60	18.73	18.66	17.73	2017/12/09.79157	68 950	17.95	2.16	68.1	11
-B-	7.26496775845	5.15968548032	-	19.44	18.71	18.39	17.83	2018/ 1/02.58488	162 998	19.09	22.36	86.8	8

The columns are in order: the LQAC flags of quasars subsets (A, B, C for quasars with highly accurate, radio positions) quasar J2000 equatorial coordinates, U, B, V, R, and I magnitudes, the Terestrial Time of the close approach event in the year/month/day format, NEA number, apparent visual magnitude, the minimum geocentric asteroid - quasar separation (arcsec), the solar elongation angle and number of UCAC2 stars in a 10 $\hbox {$^\prime $ }\times 10\hbox {$^\prime $ }$ field centered at the quasar position that could be used for astrometry.

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