Table B.1.

List of likely unbound RR Lyrae variables in our sample with P_unb >  0.5. The first two columns represent our adopted object ID and Gaia EDR3 ID. Columns 3, 4, 5, and 6 list the heliocentric distances and systemic velocities together with their assumed uncertainties, as estimated in Prudil et al. (2021). Column 8 contains estimated P_unb of the RR Lyrae stars being unbound fulfilling the condition in Eq. (13). The calculated Galactocentric velocities and their covariances are listed in columns 9, 10, 11, 12, and 13 starting with the angular velocity v_y followed by the quadrature of the radial and vertical velocity, both accompanied by their uncertainties and correlations. The last five columns (14, 15, 16, 17, and 18) represent the total Galactocentric velocity v_GC and distance R_GC followed be their covariances.

ID	Gaia-EDR3 ID	d	σd	vsys	σvsys	Punb	V	σV				vGC	σvGC	RGC	σRGC
		[kpc]	[kpc]	[km s−1]	[km s−1]		[km s−1]	[km s−1]	[km s−1]	[km s−1]		[km s−1]	[km s−1]	[kpc]	[kpc]
HV-RRL-01	2471437298673558400	53	2	-146.4	37.0	0.95	-284	114	582	179	-0.49	655	189	55.9	2.9	0.22
HV-RRL-02	3664033198603611520	49	2	21.9	31.9	0.56	-141	71	357	95	-0.57	388	105	46.6	2.7	0.24
HV-RRL-03*	2644870582050682240	19	1	-10.8	17.3	1.00	-759	56	883	51	-0.91	1165	73	20.0	1.0	0.99
HV-RRL-04*	1018414089653402496	29	1	6.9	46.9	1.00	-927	66	206	46	-0.12	950	66	35.4	1.6	0.98
HV-RRL-05	3903031502808975616	54	3	57.5	32.0	0.81	69	93	470	141	0.47	483	143	54.0	3.0	0.17
HV-RRL-06	674694939356598528	60	3	85.5	4.9	0.73	20	87	421	156	0.21	432	153	68.1	3.4	0.16
HV-RRL-07	3942539665718239360	53	2	79.7	46.9	0.94	49	82	502	100	0.21	511	101	53.5	2.9	0.25
HV-RRL-08	3661050979472106880	48	2	-24.5	13.8	0.62	-79	76	394	107	-0.17	409	107	44.9	2.7	0.23
HV-RRL-09	3692326965681261184	42	2	185.3	7.1	0.95	-212	51	445	66	-0.32	495	69	40.9	2.4	0.46