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26 Sep 2022  from geus uk In connection with the daily screening on Tuesday 27 September of seismic data from the day before, GEUS’ seismologists first discovered the seismic event that occurred at 02:03 AM( DK time UTC+2) on Monday 26 September and then the seismic event that occurred at 07:03 PM on Monday 26 September. After both the first and the second discovery the Ministry of Climate, Energy and Utilities was immediately notified and so were other relevant parties. Below table timings are in UTC: seismographs: network:DK statioin: BSD sensor: BHZ   location: Potsdam from aoadailynews : The gas leaks in Nord Stream can have major consequences for the climate. New calculations from the Swedish Environmental Protection Agency, which SVT has seen, show that the emissions are comparable to all of Sweden's combined climate emissions over the course of a year. - It is serious. There are large amounts of climate gases that come out, says Mats Björsell, environmental economist at...

  From the Harman Wong's photo above: taken in portrait mode: horizontal angle~ 4.5 deg, ie 300mm focal length for full frame (36x24mm) the sun is in between 朗庭園 block 5/3(left) and 2(right), 16m apart(0.6 degrees) , est to be 93 m tall, which is ~ 3.6 deg tall when viewed 1.47 km away on 鳳翔路footbridge so judging from these rough measurements, this photo was taken on 19 Sep 2022 18:05, ie 18 minutes before sunset. From Photographer's post, it seems to be 17 Sep or bit earlier  https://www.suncalc.org/#/22.4444,114.0322,14/2022.09.17/18:03/1/3 The sun position azimuth is 270.55 rather than 269.9 deg a few days before autumn equinox another easier option is to go to 教育路 near 大快活/千色店, 21 Sep 18:01,the road is around 3.8 degrees wide when 500m away   this will happen again when near spring equinox 26 mar, 2023 https://www.suncalc.org/#/22.443,114.0286,16/2023.03.26/18:11/1/0  Suncalc api  

 2022年6月22 位于陕西洛南县北斗村（蒿坪村） 国家授时中心洛南40米射电望远镜(Haoping)获得VLBI长基线条纹 洛南40米射电望远镜（代码为Haoping）是参加中科院上海天文台组织的VLBI测试观测中，在上海-洛南、乌鲁木齐-洛南两条基线上均成功获得长基线条纹 first fringes（分别见图1、图2），一同观测的还有上海天文台天马射电望远镜、新疆天文台南山射电望远镜。 中科院VLBI观测系统由上海65米 (tianma)直径、北京50米直径、昆明40米直径和乌鲁木齐25米直径等4台射电天文望远镜，以及上海数据处理中心组成。 VLBI DiFX cas cn   Sciencenet   EAVN   羅近濤

  from firelab github, based on Meeus;s astronomical algorithms  or from PyMeeus   step by step by geoastro   Modern Almagest from Richard Fitzpatrick NOAA online solar calculator    ISRO solar calculator NREL SPA online . Excellent input and output options  Almsun from Sybic, Poland Astronomical answers   Marsh blog   FreeCAD in 3D  , wiki

  from IMCCE , Paris Observatory, France online search Quaero API , for very powerful online ephemerides search requests supports AJAX requests, and REST API example: dwarf planet Ceres 1899 Sbpy

Installation Python:   Python3 to be used Matplotlib: Pip3 install matplotlib Pandas pip3 install pandas cairo: https://pygobject.readthedocs.io/en/latest/getting_started.html cheatsheets   Python for astronomers

pvlib github   I installed pvlib by: pip3 install pvlib later, while trying to compile and run an example pvsystem , I came across some errors, related to matplotlib: ImportError: libhdf5_serial.so.103: cannot open shared object file: No such file or directory how to solve it:  this  stackoverflow doesn't work for me:  remove h5py before install sudo apt-get install python3-h5py which shows:  403 forbidden ( repository error...)  Instead, I solved it by: pip3 install h5py   sudo apt-get install python3-h5py Timezones: Pls note ETC/GMT+8 is 8 hours behind GMT, ie Pacific, Mexico Readthedocs IBM tutorials   notebook

   next gen: he implementation of inexpensive and reliable energy storage technologies is crucial for the decarbonisation of energy intensive industry branches and energy supply. Sensible thermal energy storage (TES) in molten salts is a key technology for storage of heat in the scale of gigawatt hours but currently limited to operating temperatures of 560 °C. Increasing the maximum operating temperature while maintaining thermal stability of the storage medium is one of the main challenges next-Generation TES systems are facing. Extending the upper temperature limit by only 40 °C increases the storage capacity by more than 16% allowing for more compact storage designs and cost savings in the $ million-range for large scale storage units. Here we propose a novel storage technology from a materials point of view that pushes the thermal stability limit of Solar Salt up to 600 °C by simply but effectively sealing the storage unit including the gas system. The concentration of the...

 transit finder:  Fri 2022-09-09, 20:25:31.45  •  Moon transit ISS angular size: 34.72″; distance: 795.83 km Angular separation: 0.0′; azimuth: 122.5°; altitude: 28.7° Center line distance: 0.03 km; visibility path width: 16.02 km Transit duration: 1.03 s; transit chord length: 32.9′ R.A.: 22h 36m; Dec: -14° 44′; parallactic angle: 46.2° ISS velocity: 31.9 ′/s (angular); 7.39 km/s (transverse) ISS velocity: 0.41 km/s (radial); 7.40 km/s (total); Direction of motion relative to zenith: 84.9° Moon angular size: 32.9′; 56.8 times larger than the ISS Moon illumination: 98.7%; angular separation from Sun: 167.1° Sun altitude: -26.4°; the ISS will be in shadow   heavens above : the transit time is just ~1 second ( but still longer than transit in Nagoya on 23 Aug), and highly uncertain  Iss track using python pyephem, but space view Orbital using python numpy , cattech lab, github Three body periodic orbit sjtu , github , shijun liao