KML - Sky Quality Measurements

	A	B	C	D	E	G	H	I	J	K	L	N	P	R
1	Keweenaw Dark Sky Park
2	Sky Quality Measurements		Avg SQM:	21.43
3			Total readings	1237
4	Using a Unihedron SQM (Light Meter) HTS: 9005.80.60.00
5
6	Location	Zenith Readings	Date	Time	Temp (°F)	Reading 1	Reading 2	Reading 3	Reading 4	Reading 5	Reading 6	Readings Taken By:	Weather Conditions	Direction Facing When Taking the Reading

7	Hole 1 Tee Box	21.41	Avg
8		20.78	2/18/2021	12:00 AM	6 *	20.79	20.79	20.77				John Mueller	Clear skies, no moon in the sky, (7 days after a new moon), snow on the ground	West
9		21.11	3/6/2021	11:15 PM	13 *	21.10	21.12	21.12				Nick Niffin	Clear skies, no moon in the sky, (7 days before a new moon), snow on the ground	N/A
10		21.14	3/12/2021	9:00 PM	20 *	21.14	21.15	21.12	21.22	21.11	21.12	John Mueller	Clear skies, no moon in the sky (1 day before a new moon), snow on the ground	West
11		21.51	4/3/2021	10:11 PM	47	21.53	21.42	21.53	21.54	21.53	21.49	John Mueller	Clear skies, no moon in the sky (8 days before a new moon), snow on the ground	West
12		21.51	4/9/2021	10:40 PM	48	21.50	21.52	21.42	21.52	21.56	21.52	John Mueller	Clear skies, no moon in the sky (2 days before a new moon), snow on the ground	West
13		21.84	5/11/2021	11:26 PM	44	21.82	21.82	21.83	21.86	21.81	21.89	Martin Mueller	Clear skies, no moon in the sky (new moon)	West
14		21.68	5/12/2021	11:30 PM	48	21.65	21.64	21.70	21.72	21.67	21.68	Martin Mueller	Clear skies, no moon in the sky (1 day after a new moon)	East
15		21.31	6/8/2021	11:48 PM	60 *	21.26	21.30	21.35	21.35	21.31	21.29	Martin Mueller	Clear skies, no moon in the sky (2 days before a new moon)	West
16		21.67	7/10/2021	12:13 AM	60	21.67	21.71	21.65	21.66	21.66	21.65	John Mueller	Clear skies, no moon in the sky (1 day after a new moon)	West
17		21.34	8/9/2021	10:53 PM	66	21.32	21.26	21.29	21.37	21.41	21.36	John Mueller	Clear skies, no moon in the sky (1 day after a new moon)	West
18		21.77	9/10/2021	10:32 PM	65	21.76	21.72	21.76	21.78	21.79	21.78	Martin Mueller	Clear skies, no moon in the sky (4 days after a new moon)	West
19		21.52	10/9/2021	11:37 PM	64	21.53	21.53	21.51	21.53	21.52	21.51	Martin Mueller	Clear skies, no moon in the sky (3 days after a new moon)	West
20		21.41	11/4/2021	10:38 PM	40	21.42	21.41	21.41	21.43	21.39	21.42	Martin Mueller	Clear skies, no moon in the sky (new moon)	West
21		20.59	3/19/2022	9:56 PM	42	20.57	20.61	20.59	20.57	20.60	20.62	Martin Mueller	Clear skies, 81% humidity, ~97% moon (did the readings before the rise of the moon, sun 18 degrees below horizon), snow on the ground	West
22		21.19	4/27/2022	10:53 PM	26	21.20	21.18	21.19	21.21	21.18	21.17	Martin Mueller	Clear skies, 63% humidity, new moon, sun 17 degrees below horizon, snow on the ground	West
23		21.58	5/31/2022	12:26 AM	68	21.57	21.62	21.58	21.55	21.57	21.58	Martin Mueller	Clear skies, 76% humidity, new moon	West
24		21.47	6/21/2022	1:39 AM	80	21.52	21.44	21.49	21.48	21.49	21.42	John Mueller	Clear skies, 77% humidity, no moon in the sky (hadn't risen yet, 1/3 moon wanning)	West
25		21.50	7/26/2022	3:22 AM	62	21.49	21.54	21.43	21.53	21.50	21.49	John Mueller	Clear skies, 66% humidity, no moon in the sky (hadn't risen yet, crescent moon wanning, new moon in 2 days)	West
26		21.46	9/28/2022	10:42 PM	41	21.49	21.43	21.45	21.45	21.43	21.52	Martin Mueller	Clear skies, 93% humidity, no moon in the sky	West
27		21.36	10/29/2022	9:52 PM	50	21.36	21.38	21.35	21.35	21.37	21.36	Martin Mueller	Clear skies, 59% humidity, no moon in the sky	West
28		21.03	2/18/2023	8:14 PM	25	21.03	21.03	21.04	21.04	21.02	21.01	John Mueller	Clear skies, 83% humidity, no moon in the sky, new moon, snow on the ground	West
29		20.83	3/20/2023	9:56 PM	32	20.82	20.82	20.83	20.85	20.79	20.86	Martin Mueller	Semi-clear skies, 77% humidity, snow on the ground	West
30		21.86	5/20/2023	12:49 AM	59	21.85	21.85	21.88	21.88	21.86	21.86	Martin Mueller	Clear skies, 50% humidity, no moon in the sky	East
31		21.60	8/14/2023	4:09 AM	57	21.69	21.60	21.56	21.58	21.60	21.56	John Mueller	Clear skies, 84% humidity, no moon in the sky	South
32		21.50	9/13/2023	11:04 PM	47	21.56	21.44	21.45	21.50	21.53	21.53	Martin Mueller	Clear skies, 96% humidity, no moon in the sky (during Lights Out!)	West
33		21.17	11/2/2023	9:52 PM	47	21.19	21.19	21.16	21.15	21.16	21.14	Martin Mueller	Clear skies, 96% humidity, no moon in the sky	West
34		21.14	12/2/2023	8:29 PM	32	21.08	21.12	21.11	21.20	21.14	21.16	Martin Mueller	Clear skies, 75% humidity, Moon: 70%, but not in the sky	West
35		21.33	1/31/2024	8:13 PM	41	21.27	21.34	21.33	21.35	21.32	21.35	John Mueller	Clear skies, 85% humidity, Moon: 73%, but not in the sky, windy 26.8 mph (gusts up to 50 mph)	West
36		21.60	2/8/2024	8:12 PM	38	21.58	21.58	21.61	21.65	21.60	21.57	Martin Mueller	Clear skies, 98% humidity, Moon: 1.5%, but not in the sky, wind 1 mph	West
37		21.61	3/1/2024	10:01 PM	43	21.60	21.58	21.59	21.64	21.66	21.60	Martin Mueller	Clear skies, 44% humidity, Moon: 65%, but not in the sky, wind 1 mph	West
38		21.27	4/16/2024	5:20 AM	33	21.28	21.27	21.25	21.29	21.28	21.24	Martin Mueller	Clear skies, 82% humidity, moon 56.1% (had set at 4:36am), during Lights Out!	West
39		21.58	7/1/2024	12:29 AM	56	21.58	21.58	21.58	21.59	21.58	21.58	John Mueller	Clear skies, 62% humidity, moon 32% (had set at 4:33pm)	West
40		21.68	7/27/2024	12:16 AM	73	21.65	21.67	21.71	21.65	21.69	21.69	Martin Mueller	Clear skies, 93% humidity, moon third quarter phase (moon was rising at 12:30am)	West
41		21.37	9/22/2024	9:52 PM	56	21.37	21.36	21.36	21.40	21.35	21.35	Martin Mueller	Clear skies, 75% humidity, moon waning gibbous (rising at 9:58pm)	West
42		21.15	11/6/2024	9:18 PM	41	21.14	21.11	21.16	21.17	21.16	21.14	Martin Mueller	Clear skies, 96% humidity, moon waxing cresent (had set at 9pm)	West
43		21.01	12/20/2024	7:32 PM	10	21.05	20.99	20.99	21.02	20.99	20.99	John Mueller	Clear skies, with a cloud in the distancde in the west over Brockway Mountain, 85% humidity, moon waning cresent (not in sky when doing the reading), snow on the ground (we have received close to 75' since November)	West
44		21.26	2/20/2025	8:21 PM	10	21.29	21.26	21.25	21.27	21.26	21.25	John Mueller	Clear skies, 80% humidity, moon waning cresent (not in sky when doing the reading), snow on the ground (we have received close to 230' since November)	West
45		21.50	3/31/2025	10:30 PM	24	21.53	21.56	21.46	21.47	21.50	21.50	John Mueller	Clear skies, 74% humidity, moon waning cresent (the moon was in the sky, over Brockway Moutnain when doing the reading), snow on the ground (we have received close to 294.75' since November)	West
46		21.88	4/23/2025	11:08 PM	42	21.90	21.88	21.92	21.88	21.84	21.88	Martin Mueller	Clear skies, with no closed in the sky, 93% humidity, moon waning (moon not in the sky), a lot of the snow had melted, with some patches still left on the ground (we have received over 300' since November)	West
47		21.61	6/25/2025	2:45 AM	54	21.68	21.60	21.60	21.59	21.58	21.58	John Mueller	Clear skies, 82% humidity, new moon -- no moon in the sky, Milk Way in the Sky (almost vertical -- going from north east to south west when looking south over the Lodge building from the parking lot)	West
48		21.59	7/27/2025	11:58 PM	72	21.65	21.61	21.58	21.56	21.61	21.53	Martin Mueller	New moon, Clear skies, lightning in the north west distance (it was so far away that no thunder could be heard. Humidity 84%	West
49		21.73	8/23/2025	10:33 PM	61	21.72	21.79	21.68	21.71	21.80	21.69	Martin Mueller	New moon, Clear skies, but rain clouses were rolling in. Humidity 83%	West
50
51	Hole 8 Fairway	21.41	Avg
52		21.53	3/6/2021	11.30 PM	13 *	21.50	21.55	21.55				Nick Niffin	Clear skies, no moon in the sky, (7 days before a new moon), snow on the ground	N/A
53		21.63	7/10/2021	12:04 AM	60	21.59	21.64	21.60	21.64	21.67	21.62	John Mueller	Clear skies, no moon in the sky (1 day after a new moon)	West
54		21.71	9/10/2021	10:27 PM	65	21.71	21.72	21.71	21.72	21.71	21.71	Martin Mueller	Clear skies, no moon in the sky (4 days after a new moon)	West
55		21.54	10/9/2021	11:33 PM	64	21.53	21.53	21.53	21.59	21.52	21.52	Martin Mueller	Clear skies, no moon in the sky (3 days after a new moon)	West
56		21.42	11/4/2021	10:34 PM	40	21.47	21.41	21.42	21.41	21.40	21.41	Martin Mueller	Clear skies, no moon in the sky (new moon)	West
57		20.95	3/19/2022	9:51 PM	42	20.93	20.95	20.95	20.95	20.97	20.96	Martin Mueller	Clear skies, 81% humidity, ~97% moon (did the readings before the rise of the moon, sun 18 degrees below horizon), snow on the ground	West
58		21.48	4/27/2022	10:58 PM	26	21.49	21.54	21.49	21.47	21.44	21.47	Martin Mueller	Clear skies, 63% humidity, new moon, sun 17 degrees below horizon, snow on the ground	West
59		21.63	5/31/2022	12:21 AM	68	21.62	21.62	21.64	21.63	21.64	21.64	Martin Mueller	Clear skies, 76% humidity, new moon	West
60		21.42	6/21/2022	2:23 AM	80	21.43	21.42	21.42	21.40	21.43	21.39	John Mueller	Clear skies, 77% humidity, no moon in the sky (hadn't risen yet, 1/3 moon wanning)	West
61		21.51	7/26/2022	3:46 AM	62	21.62	21.53	21.48	21.48	21.48	21.49	John Mueller	Clear skies, 66% humidity, no moon in the sky (hadn't risen yet, crescent moon wanning, new moon in 2 days)	West
62		21.46	9/28/2022	10:51 PM	41	21.47	21.45	21.45	21.45	21.45	21.46	Martin Mueller	Clear skies, 93% humidity, no moon in the sky	West
63		21.36	10/29/2022	9:48 PM	50	21.34	21.39	21.35	21.35	21.36	21.34	Martin Mueller	Clear skies, 59% humidity, no moon in the sky	West
64		21.06	3/20/2023	9:52 PM	32	21.05	21.07	21.03	21.03	21.07	21.08	Martin Mueller	Semi-clear skies, 77% humidity, snow on the ground	West
65		21.79	5/20/2023	12:44 AM	59	21.78	21.80	21.78	21.77	21.77	21.82	Martin Mueller	Clear skies, 50% humidity, no moon in the sky	East
66		21.28	9/13/2023	10:55 PM	47	21.28	21.33	21.27	21.26	21.27	21.27	Martin Mueller	Clear skies, 96% humidity, no moon in the sky (during Lights Out!)	West
67		21.23	11/2/2023	9:47 PM	47	21.24	21.23	21.22	21.22	21.22	21.23	Martin Mueller	Clear skies, 96% humidity, no moon in the sky	West
68		21.18	12/2/2023	8:26 PM	32	21.20	21.20	21.15	21.16	21.16	21.19	Martin Mueller	Clear skies, 75% humidity, Moon: 70%, but not in the sky	West
69		21.33	4/16/2024	5:15 AM	33	21.36	21.33	21.35	21.36	21.28	21.32	Martin Mueller	Clear skies, 82% humidity, moon 56.1% (had set at 4:36am), during Lights Out!	West
70		21.53	7/27/2024	12:27 AM	73	21.53	21.52	21.54	21.54	21.51	21.56	Martin Mueller	Clear skies, 93% humidity, moon third quarter phase (moon was rising at 12:30am)	West
71		21.62	9/22/2024	9:48 PM	56	21.64	21.64	21.60	21.60	21.62	21.60	Martin Mueller	Clear skies, 75% humidity, moon waning gibbous (rising at 9:58pm)	West
72		21.09	11/6/2024	9:14 PM	41	21.09	21.09	21.09	21.10	21.09	21.09	Martin Mueller	Clear skies, 96% humidity, moon waxing cresent (had set at 9pm)	West
73		21.39	8/23/2025	10:28 PM	61	21.38	21.39	21.39	21.40	21.41	21.39	Martin Mueller	New moon, Clear skies, but rain clouses were rolling in. Humidity 83%	West
74
75	Back 9 Trailhead	21.47	Avg
76		21.16	2/18/2021	12:14 AM	6 *	21.14	21.14	21.19				John Mueller	Clear skies, no moon in the sky, (7 days after a new moon), snow on the ground	West
77		20.19	2/20/2021	6:35 AM	4 *	20.22	20.20	20.16				John Mueller	Clear skies, no moon in the sky, (9 days after a new moon), snow on the ground	West
78		21.49	3/12/2021	9:00 PM	20 *	21.43	21.48	21.50	21.55	21.50	21.46	John Mueller	Clear skies, no moon in the sky (1 day before a new moon), snow on the ground	West
79		21.63	4/3/2021	9:55 PM	47	21.63	21.60	21.63	21.62	21.63	21.64	John Mueller	Clear skies, no moon in the sky (8 days before a new moon), snow on the ground	West
80		21.24	4/15/2021	10:59 PM	32	21.22	21.28	21.37	21.31	21.14	21.11	John Mueller	Clear skies, no moon in the sky (4 days after a new moon), snow on the ground	West
81		21.52	6/8/2021	11:45 PM	60 *	21.49	21.48	21.52	21.51	21.53	21.56	Martin Mueller	Clear skies, no moon in the sky (2 days before a new moon)	South
82		21.80	7/10/2021	12:22 AM	60	21.77	21.81	21.80	21.81	21.78	21.80	John Mueller	Clear skies, no moon in the sky (1 day after a new moon)	West
83		21.73	8/9/2021	11:08 PM	66	21.72	21.73	21.71	21.72	21.72	21.80	John Mueller	Clear skies, no moon in the sky (1 day after a new moon)	West
84		22.08	9/10/2021	10:18 PM	65	22.07	22.09	22.08	22.06	22.10	22.07	Martin Mueller	Clear skies, no moon in the sky (4 days after a new moon)	West
85		21.63	10/9/2021	11:26 PM	64	21.63	21.61	21.65	21.63	21.63	21.60	Martin Mueller	Clear skies, no moon in the sky (3 days after a new moon)	South
86		21.54	11/4/2021	10:27 PM	40	21.54	21.54	21.51	21.57	21.52	21.53	Martin Mueller	Clear skies, no moon in the sky (new moon)	South
87		20.53	3/19/2022	10:07 PM	42	20.50	20.53	20.55	20.51	20.53	20.53	Martin Mueller	Clear skies, 81% humidity, ~97% moon (did the readings before the rise of the moon, sun 18 degrees below horizon), snow on the ground	South
88		21.60	4/27/2022	11:06 PM	26	21.57	21.58	21.61	21.60	21.64	21.61	Martin Mueller	Clear skies, 63% humidity, new moon, sun 17 degrees below horizon, snow on the ground	South
89		21.75	5/31/2022	21:14 AM	68	21.76	21.76	21.73	21.74	21.75	21.76	Martin Mueller	Clear skies, 76% humidity, new moon	South
90		21.64	6/21/2022	2:08 AM	80	21.68	21.65	21.65	21.63	21.62	21.62	John Mueller	Clear skies, 77% humidity, no moon in the sky (hadn't risen yet, 1/3 moon wanning)	South
91		21.63	7/26/2022	3:40 AM	62	21.65	21.61	21.61	21.61	21.60	21.67	John Mueller	Clear skies, 66% humidity, no moon in the sky (hadn't risen yet, crescent moon wanning, new moon in 2 days)	South
92		21.58	9/28/2022	10:59 PM	41	21.58	21.59	21.56	21.60	21.55	21.60	Martin Mueller	Clear skies, 93% humidity, no moon in the sky	South
93		21.52	10/29/2022	9:40 PM	50	21.50	21.50	21.60	21.40	21.62	21.47	Martin Mueller	Clear skies, 59% humidity, no moon in the sky	South
94		21.33	2/18/2023	8:22 PM	25	21.35	21.33	21.32	21.32	21.33	21.32	John Mueller	Clear skies, 83% humidity, no moon in the sky, new moon, snow on the ground	West
95		21.38	3/20/2023	10:07 PM	32	21.37	21.38	21.35	21.35	21.38	21.43	Martin Mueller	Semi-clear skies, 77% humidity, snow on the ground	South
96		21.84	5/20/2023	12:36 AM	59	21.87	21.81	21.81	21.87	21.88	21.81	Martin Mueller	Clear skies, 50% humidity, no moon in the sky	East
97		21.82	7/17/2023	12:15 AM	55	21.83	21.81	21.83	21.86	21.83	21.78	Martin Mueller	Partly cloudy skies, 95% humidity, no moon in the sky	East
98		21.65	8/14/2023	4:28 AM	57	21.68	21.64	21.64	21.64	21.65	21.64	John Mueller	Clear skies, 84% humidity, no moon in the sky	South
99		21.39	9/13/2023	10:43 PM	47	21.40	21.39	21.39	21.42	21.38	21.37	Martin Mueller	Clear skies, 96% humidity, no moon in the sky (during Lights Out!)	South
100		21.37	11/2/2023	9:41 PM	47	21.38	21.35	21.36	21.38	21.36	21.36	Martin Mueller	Clear skies, 96% humidity, no moon in the sky	South