Table 2: Relative positions of the identified H₂O maser features.
Epoch I Epoch II Epoch III Epoch IV

Features $\Delta\alpha^a$ $\Delta\delta^b$ $\sigma^c$ $\Delta\alpha$ $\Delta\delta$ $\sigma$ $\Delta\alpha$ $\Delta\delta$ $\sigma$ $\Delta\alpha$ $\Delta\delta$ $\sigma$

(mas) (mas) (mas) (mas) (mas) (mas) (mas) (mas) (mas) (mas) (mas) (mas)

2 -0.046 3.928 0.011 0.049 4.094 0.014 -0.133 3.860 0.012 $\cdot\cdot\cdot$ $\cdot\cdot\cdot$ $\cdot\cdot\cdot$

4 -0.160 1.500 0.031 -0.124 1.434 0.010 -0.154 1.308 0.012 -0.172 1.510 0.008

5 -0.133 0.135 0.008 -0.034 0.113 0.009 -0.053 -0.021 0.018 -0.071 -0.037 0.019

9 -1.794 -2.481 0.014 -1.679 -2.436 0.012 -1.659 -2.398 0.019 -1.684 -2.204 0.010

13 -5.439 -1.280 0.010 -5.392 -1.464 0.016 -5.349 -1.600 0.023 -5.235 -1.395 0.019

SW -23.11 -12.89 0.052 -23.43 -13.10 0.04 -23.62 -13.50 0.03 -23.97 -13.60 0.05

EHV 4184.8 -709.9 0.29 4184.3 -709.9 0.35 4183.9 -709.7 0.18 4183.6 -709.4 0.17

**Table 2:** Relative positions of the identified H₂O maser features.
	Epoch I		Epoch II	Epoch III		Epoch IV
Features	$\Delta\alpha^a$	$\Delta\delta^b$	$\sigma^c$	$\Delta\alpha$	$\Delta\delta$	$\sigma$	$\Delta\alpha$	$\Delta\delta$	$\sigma$	$\Delta\alpha$	$\Delta\delta$	$\sigma$
	(mas)	(mas)	(mas)	(mas)	(mas)	(mas)	(mas)	(mas)	(mas)	(mas)	(mas)	(mas)
2	-0.046	3.928	0.011	0.049	4.094	0.014	-0.133	3.860	0.012	$\cdot\cdot\cdot$	$\cdot\cdot\cdot$	$\cdot\cdot\cdot$
4	-0.160	1.500	0.031	-0.124	1.434	0.010	-0.154	1.308	0.012	-0.172	1.510	0.008
5	-0.133	0.135	0.008	-0.034	0.113	0.009	-0.053	-0.021	0.018	-0.071	-0.037	0.019
9	-1.794	-2.481	0.014	-1.679	-2.436	0.012	-1.659	-2.398	0.019	-1.684	-2.204	0.010
13	-5.439	-1.280	0.010	-5.392	-1.464	0.016	-5.349	-1.600	0.023	-5.235	-1.395	0.019
SW	-23.11	-12.89	0.052	-23.43	-13.10	0.04	-23.62	-13.50	0.03	-23.97	-13.60	0.05
EHV	4184.8	-709.9	0.29	4184.3	-709.9	0.35	4183.9	-709.7	0.18	4183.6	-709.4	0.17

^a Right Ascension offset with respect to the 1.6 km s^-1 spot. ^b Declination offset. ^c Position error.

Source LaTeX | All tables | In the text

	1 Introduction
	2 IRAS 20050+2720
	3 Observations
	4 Results and analyses
	5 Discussion
	6 Summary
	References