SN1987a: Catalogue of Spectrophotometric Observations Image Date UT JD Comment 2440000+ sn25feb87_1.5mccd 25/02/87 04:00:00 6851.67 photometric sn27feb87_1m2df 27/02/87 00:39:49 6853.53 Conditions not recorded sn28feb87_1m2df 28/02/87 00:25:54 6854.52 Not photometric sn01mar87_1m2df 01/03/87 01:43:00 6855.57 Not photometric sn02mar87_1m2df 02/03/87 01:21:00 6856.56 Not photometric sn03mar87_1m2df 03/03/87 00:53:00 6857.54 Not photometric sn04mar87_1m2df 04/03/87 00:32:00 6858.52 Photometric sn06mar87_1m2df 06/03/87 01:52:00 6860.58 Cirrus. Variations of 5% sn07mar87_1m2df 07/03/87 00:30:00 6861.52 Cirrus. Not photometric sn08mar87_1m2df 08/03/87 00:07:00 6862.51 Cirrus. Not photometric sn09mar87_1m2df 09/03/87 00:03:00 6863.50 Cirrus and fog. Not photometric sn10mar87_1m2df 10/03/87 00:12:00 6864.51 Very foggy. Extinction very high. sn11mar87_1m2df 11/03/87 00:04:00 6865.50 Cirrus. Variations from 5%-10% sn12mar87_1m2df 12/03/87 00:21:00 6866.52 Clouds not photometric. Saturated sn13mar87_1m2df 12/03/87 23:55:00 6867.50 Conditions not recorded sn14mar87_1m2df 14/03/87 00:32:00 6868.52 Not photometric sn15mar87_1m2df 15/03/87 00:47:43 6869.53 Conditions not recorded. Saturated sn16mar87_1m2df 16/03/87 01:16:30 6870.55 Conditions not recorded sn17mar87_1m2df 17/03/87 00:10:33 6871.51 Clouds sn18mar87_1m2df 18/03/87 00:45:60 6872.53 Clouds sn19mar87_1m2df 19/03/87 00:14:50 6873.51 Cirrus. Variations of 2% sn20mar87_1m2df 20/03/87 00:14:54 6874.51 Photometric sn21mar87_1m2df 21/03/87 00:16:35 6875.51 Photometric sn22mar87_1m2df 21/03/87 23:57:35 6876.50 Cirrus. Variations of 20% sn23mar87_1m2df 23/03/87 02:00:00 6877.58 Thick cloud.Non standard reduction sn26mar87_1m2df 26/03/87 00:31:26 6880.52 Clouds. Variations of 3%. sn27mar87_1m2df 26/03/87 23:39:34 6881.49 Photometric sn28mar87_1m2df 28/03/87 00:00:00 6882.50 Photometric sn29mar87_1m2df 29/03/87 00:16:60 6883.51 Clouds + cirrus. sn30mar87_1m2df 30/03/87 00:16:42 6884.51 Photometric sn31mar87_1m2df 30/03/87 23:54:10 6885.50 Fair, although it looks O.K. sn01apr87_1m2df 31/03/87 23:55:52 6886.50 Photometric sn02apr87_1m2df 02/04/87 00:00:00 6887.50 Photometric sn03apr87_1m2df 02/04/87 23:37:49 6888.49 Conditions not recorded sn04apr87_1m2df 03/04/87 23:47:22 6889.49 Beginning: Photometric sn05apr87_1m2df 05/04/87 00:00:00 6890.50 Cirrus sn06apr87_1m2df 05/04/87 23:38:43 6891.49 Beginning: Photometric sn07apr87_1m2df 07/04/87 00:00:00 6892.50 Conditions not recorded sn08apr87_1m2df 07/04/87 23:43:27 6893.49 Clear sn09apr87_1m2df 09/04/87 00:32:32 6894.52 Poor - ok during wide slit obs. sn10apr87_1m2df 10/04/87 00:12:56 6895.51 Cirrus, better by wide slit obs. sn11apr87_1m2df 11/04/87 00:52:47 6896.54 High humidity,cirrus, bad seeing sn12apr87_1m2df 12/04/87 00:12:33 6897.51 Photometric. Tracking problems. sn13apr87_1m2df 13/04/87 00:47:23 6898.53 Photometric sn14apr87_1m2df 13/04/87 23:57:49 6899.50 Clear sn15apr87_1m2df 15/04/87 00:58:41 6900.54 Very cloudy Non standard reduction sn16apr87_1m2df 15/04/87 23:42:19 6901.49 Cirrus. Variations of 5%. sn17apr87_1m2df 17/04/87 00:48:51 6902.53 Variations of 3% Bad seeing. sn18apr87_1m2df 17/04/87 23:00:00 6903.46 Photometric sn20apr87_1m2df 19/04/87 23:17:19 6905.47 Cirrus+clouds. Non std. reduction sn22apr87_1m2df 22/04/87 00:16:44 6907.51 Clouds+cirrus sn24apr87_1m2df 23/04/87 23:12:57 6909.47 Clouds, Not photometric sn26apr87_1m2df 25/04/87 23:16:18 6911.47 Very cloudy sn30apr87_1m2df 30/04/87 00:54:34 6915.54 Clouds, var counts. Non std. red. sn02may87_1m2df 02/05/87 00:00:00 6917.50 Some cirrus. Non std. reduction sn03may87_1m2df 02/05/87 23:12:00 6918.47 Clear sn05may87_1m2df 04/05/87 23:29:44 6920.48 Clear sn08may87_1m2df 07/05/87 23:29:16 6923.48 Clear sn10may87_1m2df 09/05/87 23:26:11 6925.48 Clear, Photometric. Non std. red. sn12may87_1m2df 11/05/87 23:17:27 6927.47 Cirrus, clouds sn14may87_1m2df 13/05/87 23:20:37 6929.47 Clear, photometric sn16may87_1m2df 15/05/87 23:48:23 6931.49 Light cirrus - Not photometric sn20may87_1m2df 19/05/87 23:20:26 6935.47 Not photometric sn21may87_1m2df 19/05/87 23:14:58 6935.47 Photometric,clear sn23may87_1m2df 21/05/87 22:45:48 6937.45 Cirrus and clouds sn27may87_1m2df 26/05/87 23:26:45 6942.48 Clouds sn28may87_1m2df 27/05/87 23:15:35 6943.47 Cirrus in the West sn30may87_1m2df 29/05/87 23:21:47 6945.47 Cirrus and clouds. Not photometric sn01jun87_1m2df 31/05/87 23:35:53 6947.48 Clouds. Non standard reduction sn05jun87_1m2df 04/06/87 22:42:00 6951.45 Photometric sn06jun87_1m2df 06/06/87 00:23:34 6952.52 Cirrus. Non standard reduction sn08jun87_1m2df 07/06/87 22:46:27 6954.45 Cleared up just before starting sn11jun87_1m2df 10/06/87 22:45:55 6957.45 Photometric sn13jun87_1m2df 12/06/87 22:55:35 6959.46 Not fully photometric sn15jun87_1m2df 14/06/87 22:39:50 6961.44 Conditions not recorded sn17jun87_1m2df 16/06/87 23:40:14 6963.49 Clear. Non standard reduction sn19jun87_1m2df 18/06/87 22:44:00 6965.45 Conditions not recorded sn21jun87_1m2df 20/06/87 22:45:10 6967.45 Conditions not recorded sn25jun87_1m2df 24/06/87 23:37:60 6971.49 Clear. Some cirrus in SW. sn27jun87_1m2df 26/06/87 23:29:54 6973.48 Photometric sn29jun87_1m2df 28/06/87 23:21:00 6975.47 Clear sn02jul87_1m2df 01/07/87 22:41:52 6978.45 Clear. Non standard reduction sn03jul87_1m2df 03/07/87 09:10:58 6979.88 Photometric sn04jul87_1m2df 04/07/87 09:21:00 6980.89 Photometric