Sky Quality Meter Readings taken within the Hopewell Big Woods using UniHedron Sky Quality Meters

Click here for Hopewell Big Woods Map (PDF)

All readings taken at zenith on clear moonless nights with negligible clouds. Small cloud cover near horizon is considered negligible.

Meters
Meter 1  - lb   Lou Behrman's meter
Meter 2  - ss  (Serial # - 0545, half-angle 40 degrees)
Meter 3  - bj   (Serial # - 3021, half-angle 40 degrees)
Meter 4  - fd   (Serial # - 6115, SQM-L half-angle 20 degrees)
Meter 5  - bg (Serial # - 2248, SQM-L half-angle 20 degrees)
Meter 6  - js   (Dark Sky Meter Version 1.4 on iPhone 4S, accepting calibration defaults)
Meter 7  - bh, tg  (Serial # - 6787, half-angle 40 degrees)

Observers
LB - Lou Behrman
FD - Fred De Lucia
CF - Chris Fessett
BJ - Barry Johnson
JR - Jan Romer
SS - Stan Stubbe
BG - Barb Geigle
JS - Jon Schuchardt
BH - Becky Hughes
TG - Tom Gazillo

Locations
Code Description
FCSP French Creek State Park near Park Office
SGL43 Rifle range at State Gamelands 43 - GPS - N40 Deg. 10.504 - W075 Deg. 47.819 (Alt. 865')
HF Hopewell Furnace National Historic Site
HNF Hopewell Non-Ferrous Foundry, 2261 E. Main St., Douglassville 19518
GTNFTR Geigertown, PA - Firetower Rd. - Half-way between Cold Run Rd. and Kratz Rd. - N 40 Deg. 12.106' - W 075 Deg. 49.768 (Alt. 483 ft.)
RCR Red Corner Rd. at Blackwood golf course, between Hallman Rd. and Sycamore Rd., Union Twp. - N 40 Deg. 14.580' - W 075 Deg. 44.743 (Alt. 221 ft.)
HOFU 490 Hopewell Rd., Elverson, PA 19520
CNP Crow's Nest Preserve


Sky Quality Meter Readings Log - Hopewell Big Woods
Date (mm/dd/yy) Local Time Location Observer MPSAS Meter
07/03/10 22:30 FCSP LB 20.21 1
07/03/10 23:00 FCSP LB 20.21 1
09/08/10 22:25 FCSP SS 20.12 2
10/01/10 00:30 FCSP SS 20.34 2
10/02/10 00:30 FCSP LB 20.34 1
03/02/11 22:30 FCSP SS 20.22 2
06/02/11 22:00 FCSP JR 19.78 3
06/25/11 23:45 FCSP LB 20.18 1
07/02/11 22:00 FCSP LB 20.18 1
09/26/11 20:48 FCSP CF 19.81 3
02/20/12  20:15  FCSP  CF  19.89  3
09/12/12  20:45  GTNFTR  CF  19.83  3
09/05/12  22:00  HNF  BG  19.57  5
09/21/12  00:30  HNF  CF  19.75  3
11/18/11  19:30  HF  JR  19.95  4
11/18/11  19:30  HF  CF  19.73  3
09/21/12  00:52  RCR  CF  19.9 3
05/29/10 22:00 SGL43 LB 20.40 1
11/10/10 20:45 SGL43 BJ 19.88 3
08/18/12  22:30  SGL43  CF  20.21  3
08/18/12  22:45  SGL43  CF  20.25  3
08/18/12  23:00  SGL43  CF  20.25  3
08/18/12  23:30  SGL43  CF  20.34  3
08/19/12  00:35  SGL43  CF  20.29  3
07/30/13  23:07  SGL43  JS  20.23  2
08/04/13  23:10  SGL43  JS  20.17  2
09/06/13  22:30  SGL43  CF  20.40  3
09/06/13  23:30  SGL43  JS  20.13  3
09/06/13  23:30  SGL43  JS  20.40  6
05/26/14  01:30  SGL43  BJ  20.15  2
06/18/14  23:30  HOFU  BH  19.70   7
06/21/14  22:35  HOFU  BH  19.55   7
06/21/14  23:00  FCSP  FD  20.26   2
06/22/14  01:05  SGL43  BJ  20.14   4
06/27/14  23:30  HOFU  BH  20.10   7
07/01/14  23:30  HOFU  BH  19.70   7
08/16/14  22:55  HF  FD  20.30   4
08/24/14  22:00  SGL43  TG  20.28   7
08/24/14  22:30  SGL43  FD  20.34   4
08/24/14  23:52  SGL43  TG  20.32   7
08/25/14  00:00  SGL43  FD  20.38   4
08/25/14  01:15  SGL43  TG  20.35   7
08/27/14  23:00  SGL43  TG  20.34   7
08/28/14  00:02  SGL43  TG  20.41   7
08/28/14  01:46  SGL43  TG  20.39   7
09/18/14  20:45  CNP  TG  20.11   7
09/18/14  21:40  CNP  TG  20.24   7
09/18/14  22:05  CNP  TG  20.27   7
09/27/14  22:35  SGL43  TG  20.19   7
09/27/14  23:55  SGL43  TG  20.28   7
09/28/14  01:25  SGL43  TG  20.37   7
11/21/14  20:45  SGL43  TG  20.04   7
11/21/14  21:40  SGL43  TG  19.59   7
11/21/14  23:15  SGL43  TG  20.11   7
04/12/15  21:44  CNP  TG  19.28   7
04/12/15  21:58  CNP  TG  19.49   7
04/12/15  22:42  CNP  TG  19.51   7
05/19/15  22:14  SGL43  TG  20.24   7
05/19/15  23:35  SGL43  TG  20.30   7
05/20/15  00:37  SGL43  TG  20.39   7
05/23/15  01:00  SGL43  TG  20.33   7
05/23/15  01:15  SGL43  TG  20.28   7
07/11/15  23:30  FCSP  FD  20.44   4
07/16/15  23:50  SGL43  TG  20.22   7
07/17/15  00:45  SGL43  TG  20.20   7
08/14/15  00:10  SGL43  TG  20.30   7
08/14/15  23:55  SGL43  TG  20.20   7
08/15/15  01:05  SGL43  TG  20.22   7
08/17/15  00:05  SGL43  TG  20.16   7
09/05/15  21:40  SGL43  TG  20.23   7
09/05/15  20:50  SGL43  TG  20.25   7
09/05/15  23:30  SGL43  TG  20.34   7
09/06/15  00:35  SGL43  TG  20.42   7
09/06/15  01:15  SGL43  TG  20.49   7
12/04/15  20:50  SGL43  TG  19.96   7
12/04/15  21:45  SGL43  TG  20.01   7
12/04/15  22:50  SGL43  TG  20.08   7
01/03/16  00:30  SGL43  FD  20.32   4
06/29/16  23:50  SGL43  TG  20.37   7
06/30/16  00:30  SGL43  TG  20.39   7
07/11/16  01:20  SGL43  TG  20.26  7
07/11/16  02:05  SGL43  TG  20.20  7
07/11/16  02:55  SGL43  TG  20.23  7
11/04/16  21:05  SGL43  TG  19.96  7
11/04/16  21:55  SGL43  TG  20.04  7
11/04/16  22:50  SGL43  TG  20.10  7
02/19/17  22:05  SGL43  BJ  20.17  3