Limited 3 Days Seeing Prediction

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Datetime Clouds Seeing Bad Layers
Sun & Moon phases Hour CLST Low Mid High Index 1 Index 2 arc sec. Visible Planets Jet stream (m/s) Bot (km) Top (km) K/ 100m Temp (°C) 2m rel. hum. (%)
Tue
2015 .03.31
21 0 0 0 5 5 0.26
L-V-J----
29 m/s 00.0 00.0 0.0 K 18 °C 6%
22 0 0 0 5 5 0.26
L---J----
29 m/s 00.0 00.0 0.0 K 18 °C 6%
23 0 0 0 5 5 0.26
L---JS---
29 m/s 00.0 00.0 0.0 K 17 °C 9%
Wed
2015 .04.01
07:43
19:30
Full moon (°)
17:54
05:13
waxing gibbous (147°)
00 0 0 0 5 5 0.24
L---JS---
30 m/s 00.0 00.0 0.0 K 14 °C 13%
01 0 0 0 5 4 0.23
L---JS---
30 m/s 08.6 09.7 0.5 K 12 °C 16%
02 0 0 0 5 4 0.22
L---JS--P
30 m/s 08.6 09.7 0.5 K 10 °C 20%
03 0 0 0 5 4 0.22
L---JS--P
29 m/s 02.0 03.2 0.6 K 10 °C 22%
04 0 0 0 5 3 0.22
L----S--P
28 m/s 08.6 09.7 0.5 K 9 °C 21%
05 0 0 0 5 3 0.23
-----S--P
28 m/s 08.6 09.7 0.6 K 8 °C 20%
06 0 0 0 4 3 0.24
-----S-NP
27 m/s 08.6 09.7 0.6 K 8 °C 20%
07 0 0 0 4 3 0.24
-----S-NP
27 m/s 08.5 09.7 0.5 K 8 °C 20%
08 0 0 0 4 3 0.25
-M---S-NP
27 m/s 08.6 09.7 0.5 K 7 °C 22%
09 0 0 0 3 1 0.27
-M---SUNP
26 m/s 08.6 09.7 0.5 K 10 °C 25%
10 0 0 0 4 2 0.28
-M-M-SUNP
26 m/s 08.6 09.7 0.5 K 13 °C 24%
11 0 0 0 4 2 0.27
-MVM-SUNP
26 m/s 08.6 09.7 0.5 K 17 °C 18%
12 0 0 0 5 4 0.26
-MVM--UNP
26 m/s 08.6 09.7 0.5 K 20 °C 11%
13 0 0 0 5 5 0.25
-MVM--UNP
25 m/s 08.6 09.7 0.5 K 22 °C 7%
14 0 0 0 5 5 0.25
-MVM--UNP
25 m/s 08.6 09.7 0.5 K 25 °C 6%
15 0 0 0 5 5 0.26
-MVM--UN-
25 m/s 00.0 00.0 0.0 K 26 °C 5%
16 0 0 0 5 5 0.27
-MVM--UN-
25 m/s 00.0 00.0 0.0 K 28 °C 5%
17 0 0 0 5 5 0.27
-MVMJ-UN-
25 m/s 00.0 00.0 0.0 K 29 °C 6%
18 0 0 0 5 5 0.28
LMVMJ-U--
25 m/s 00.0 00.0 0.0 K 29 °C 6%
19 0 0 0 5 5 0.29
L-VMJ-U--
25 m/s 06.7 07.6 0.5 K 27 °C 9%
20 0 0 0 5 5 0.31
L-VMJ----
24 m/s 06.7 07.6 0.5 K 23 °C 24%
21 0 7 0 5 5 0.33
L-V-J----
25 m/s 00.0 00.0 0.0 K 20 °C 29%
22 0 5 0 5 5 0.33
L---J----
26 m/s 00.0 00.0 0.0 K 19 °C 29%
23 0 35 0 5 5 0.32
L---JS---
27 m/s 00.0 00.0 0.0 K 17 °C 29%
Thu
2015 .04.02
07:43
19:29
Full moon (°)
18:30
06:02
full (158°)
00 24 40 0 5 5 0.32
L---JS---
27 m/s 00.0 00.0 0.0 K 16 °C 29%
01 26 44 0 5 4 0.29
L---JS---
27 m/s 06.7 07.6 0.5 K 16 °C 30%
02 24 24 0 5 4 0.29
L---JS--P
26 m/s 06.7 07.6 0.6 K 16 °C 31%
03 24 13 0 5 4 0.29
L---JS--P
26 m/s 06.7 07.6 0.6 K 15 °C 32%
04 24 6 0 5 4 0.32
L----S--P
26 m/s 06.7 07.6 0.7 K 15 °C 33%
05 26 7 0 5 4 0.34
L----S--P
26 m/s 06.7 07.6 0.7 K 14 °C 34%
06 26 16 0 5 3 0.32
-----S-NP
25 m/s 06.7 07.6 0.7 K 14 °C 35%
07 26 7 0 4 3 0.33
-----S-NP
25 m/s 06.7 07.6 0.8 K 14 °C 36%
08 24 5 0 4 3 0.33
-M---S-NP
25 m/s 06.7 07.6 0.8 K 13 °C 38%
09 0 2 0 4 3 0.32
-M---SUNP
24 m/s 06.6 07.5 0.6 K 14 °C 37%
10 0 0 0 5 4 0.40
-M-M-SUNP
25 m/s 06.8 07.7 0.6 K 18 °C 30%
11 0 0 0 5 4 0.35
-MVM-SUNP
23 m/s 06.6 07.5 0.6 K 18 °C 26%
12 0 0 0 5 4 0.38
-MVM--UNP
19 m/s 06.6 07.5 0.5 K 21 °C 20%
13 0 0 0 5 5 0.32
-MVM--UNP
22 m/s 03.2 03.9 0.5 K 25 °C 14%
14 0 0 0 5 5 0.29
-MVM--UNP
22 m/s 00.0 00.0 0.0 K 26 °C 12%
15 0 0 0 5 5 0.32
-MVM--UN-
25 m/s 00.0 00.0 0.0 K 28 °C 9%
16 0 0 0 5 5 0.35
-MVM--UN-
22 m/s 05.9 06.7 0.5 K 28 °C 9%
17 0 0 0 5 5 0.36
-MVMJ-UN-
23 m/s 05.9 06.7 0.6 K 29 °C 8%
18 0 0 0 5 5 0.45
-MVMJ-U--
19 m/s 05.9 06.7 0.7 K 29 °C 9%
19 0 0 0 5 5 0.41
L-VMJ-U--
24 m/s 05.7 06.5 0.8 K 26 °C 15%
20 0 0 0 5 5 0.38
L-VMJ----
25 m/s 05.9 06.7 0.8 K 23 °C 17%
21 0 0 0 5 4 0.44
L-V-J----
23 m/s 05.9 06.7 0.9 K 21 °C 18%
22 0 0 0 5 4 0.50
L---J----
23 m/s 05.9 06.7 0.9 K 20 °C 20%
23 0 0 0 5 4 0.55
L---JS---
22 m/s 05.8 06.6 0.9 K 17 °C 21%

Additional information to your astronomical seeing prediction:

  • Values may not reflect precisely reality
  • For good seeing conditions look for dark blue colors in the cloud cover and green values in the Seeing Indices and Jet Stream
  • The estimated seeing indexes (1 & 2) range from 1 (poor) to 5 (excellent) seeing conditions. This value is computed based on the integration of turbulent layers in the atmosphere.
  • Estimation of seeing in arcseconds. This is a test prediction under development, uncalibrated for the time being.
  • Cloud cover ranges from dark blue (0% cover) to white (100% cover). Fog or very low cloud is not shown here (see pictocast for fog)
  • High jetstream speeds (>35m/s) usually correspond to bad seeing, as well as very low speeds (<5m/s). Color gives a hint.
  • Bad Layers have a Temperature Gradient > 0.5K/100m. The actual gradient is shown K/100m. The top and bottom height of the Bad layers is indicated by Bad Layers bot/top
  • Visible planets and coordinates also considering temperature profiles of the atmosphere. The following planets are available: MVMJSUNP => Mercury, Venus, Mars, Jupiter, Saturn, Uranus, Neptune and Pluto.
  • If you move your courser over the visible planets column, hourly coordinates for each planet will appear: Azimuth (Az) from north with altitude in degree (Alt) onto horizon, right ascension (RA) and declination (DEC). We may consider adding 10 minutes coordinates and additional objects on request.