Total mass of six quiescent prominences estimated from their multi-spectral observations

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Table 1

Morphological properties of the six prominences and dates and times of their observations.


Observ.	Pos.	Max. height	Total area accor-	Dates and times in UT of observations from
No.	angle	above surface	ding to AIA 304 Å	SLS in Hα	XRT in X-rays	AIA in EUV	HSFA2 in Ca ii H
	[deg]	[1000 km]


				19 Apr. 2011	19 Apr. 2011	19 Apr. 2011	19 Apr. 2011
1	283	23.8	1.3 × 10⁹	06:55:12 –	06:30:37 –	06:30:03 –	09:01:27 –
				– 08:12:28	– 06:31:31	– 06:30:10	– 09:02:09
				5 May 2011	5 May 2011	5 May 2011	6 May 2011
		large one: 51.2	7.5 × 10⁹
2 ^a	55			11:55:09 –	10:25:31 –	10:26:03 –	12:43:01 –
		small one: 6.8	2.0 × 10⁷
				– 12:00:43	– 10:26:10	– 10:26:30	– 12:44:49
				5 May 2011	5 May 2011	5 May 2011	9 May 2011
3	127	37.5	3.3 × 10⁹	12:13:11 –	10:25:31 –	10:26:03 –	08:41:17 –
				– 12:21:03	– 10:26:10	– 10:26:10	– 08:43:07
				6 May 2011	6 May 2011	6 May 2011	6 May 2011
4 ^b	52	61	3.4 × 10⁹	12:48:31 –	12:15:44 –	12:18:02 –	12:43:01 –
				– 12:54:19	– 12:16:01	– 12:18:09	– 12:44:49
				8 May 2011	8 May 2011	8 May 2011	6 May 2011
5	77	27.9	6.8 × 10⁹	14:12:17 –	12:01:44 –	12:02:01 –	07:44:55 –
				– 14:16:16	– 12:02:02	– 12:02:08	– 07:46:36
				18 May 2011	18 May 2011	18 May 2011	18 May 2011
6	235	57.0	4.6 × 10⁹	09:08:51 –	12:03:07 –	12:02:01 –	08:47:09 –
				– 11:50:32	– 12:03:45	– 12:02:08	– 09:12:24

Notes. Table columns are as follows: the observation number, position angles in degrees measured clockwise from the solar, maximum height above the limb in 1000 km, area in km² according to the AIA 304 Å images, and dates and times of beginning and end of the SLS, XRT, AIA, and HSFA2 observations.

^(a)

Two prominences were observed close to each other in EUV and X-ray; one was large and the other small. In the Hα observations from SLS and HSFA2 only the large one was visible.

^(b)

The same prominence as the large one from observation No. 2.

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