Comparison of Echo 7 field line length measurements to magnetospheric model predictions

Details Comparison of Echo 7 field line length measurements to magnetospheric model predictions Comparison of Echo 7 field line length measurements to magnetospheric model predictions

Feb 1992

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992jgr....97.1279n&link_type=abstract

Journal of Geophysical Research (ISSN 0148-0227), vol. 97, Feb. 1, 1992, p. 1279-1287. Research supported by USAF.

Computer Science

Sound

2

Beam Injection, Earth Magnetosphere, Geomagnetic Tail, Magnetic Measurement, Conjugate Points, Echo Project, Kp Index, Models, Rocket Sounding

Scientific paper

The Echo 7 sounding rocket experiment injected electron beams on central tail field lines near L = 6.5. Numerous injections returned to the payload as 'conjugate echoes' after mirroring in the southern hemisphere. Field line lengths calculated from measured conjugate echo bounce times and energies are compared to predictions made by integrating electron trajectories through various magnetospheric models. Although Kp at launch was 3-, quiet time magnetic models best fit the echo measurements. Geosynchronous satellite magnetometer measurements near the Echo 7 field lines during the flight were best modeled by the Olson-Pfitzer Dynamic Model and the Tsyganenko-Usmanov model for Kp = 3. The discrepancy between the models that best fit the Echo 7 data and those that fit the satellite data was most likely due to uncertainties in the small-scale configuration of the magnetospheric models. The field line length measured by the conjugate echoes showed some temporal variation in the magnetic field, also indicated by the satellite magnetometers. This demonstrates the utility an Echo-style experiment could have in substorm studies.

Affiliated with

Also associated with

No associations

Rating

Comparison of Echo 7 field line length measurements to magnetospheric model predictions does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Comparison of Echo 7 field line length measurements to magnetospheric model predictions, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Comparison of Echo 7 field line length measurements to magnetospheric model predictions will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1049104