Spacecraft Footprints and Ground-Based Instruments (old version, not updated any more)
Geotail/Cluster/Double Star/THEMIS/Reimei/FAST + SuperDARN/EISCAT/THEMIS/OMTI/Syowa/South Pole
Not Available for 2020/12/31
Conjunction Event Finder
Polar 2 hours 20111231 2200-2400 UT
- Orbits and footprints of Geotail (GT), Cluster (reference spacecraft) (CL),
Double Star TC1-TC2 (T1-T2), THEMIS P1-P5 (P1-P5), Reimei (RM), and FAST (FA) are plotted
in black, blue, green, yellow to red, violet, and green, respectively;
RM and FA are shown only in 2 hour plots.
- Geocentric solar magnetospheric (GSM) coordinates are used for the magnetosphere;
altitude adjusted corrected geomagnetic (AACGM) coordinates are used for
spacecraft footprints and ground-based instruments.
- The dashed lines from the pole in the upper panels indicate midnight meridians
at different universal times.
- Light-gray solid fans indicate fields of view of SuperDARN radars at an altitude of 400 km.
Dark-gray solid circles with a white dot indicate fields of view of OMTI (Resolute Bay and Athabasca)
and NIPR (Syowa and South Pole) cameras at an altitude of ~250 km; open circles indicate
fields of veiw of THEMIS cameras. Blue dots indicate the locations of the EISCAT radars (Tromsoe and ESR).
These fans, circles, and dots are drawn when the operations are carried out. For example,
the operation of the OMTI Resolute Bay camera started on 10 January 2005.
- Input parameters for the Tsyganenko 96 model are shown in the bottom left-hand corner of
the upper right panel: the solar wind dynamic pressure = 2 nPa, Dst=0, and IMF By=Bz=0 for 1 day plots,
and the 2-hour averaged OMNI2 data for 2 hour plots. When the Dst index is not available in the OMNI2 data,
Dst=0 is used and indicated in red. The altitude of spacecraft footprints is 120 km.
- Predictive orbit data are indicated by "P" at the end of the name of spacecraft.
Cluster and Double Star predictive orbit data were provided by ESA through
the RAL Cluster data center.
THEMIS definitive orbit data and FAST predictive orbit data were provided by UCB SSL.
THEMIS predictive orbit data were provided by NASA SSCWeb.
OMNI 2 data were provided by NASA OMNIWeb.
The fields-of-view of the SuperDARN radars are calculated with Radar Software Toolkit (RST) provided by JHU/APL.
The EISCAT is an international association supported by Finland (SA), France (CNRS), Germany (MPG),
Japan (NIPR), Norway (NFR), Sweden (VR), and the United Kingdom (PPARC).
The OMTIs are developed and maintained by Division for Ionospheric and Magnetospheric Research, ISEE, Nagoya University.
The Syowa and South Pole cameras are developed and maintained by NIPR.
If you have any problems, questions, or comments, please contact
the ERG Science Center ("ergsc-help (at) isee.nagoya-u.ac.jp")
or Y. Miyashita ("miyasita (at) isee.nagoya-u.ac.jp") at ISEE, Nagoya University.
This page was originally produced by K. Hosokawa, Y. Miyashita, T. Hori, T. Takada, and I. Shinohara
and moved from DARTS
JAXA in Japan.
Last Modified: 2021/06/01