Space Science Reviews,
Vol. 111, Iss. 1, pp. 1-32, doi: 10.1023/B:SPAC.0000032719.40094.1d, March 2004.
Figure 6: MGS observations (crosses) at approximately 100 km (aerobraking) and 400 km (mapping orbit) altitudes compared with that computed from the 20-plate model of Connerney et al. (1999). The model, fit to the aerobraking observations only, does a very good job fitting the high altitude observations obtained two years later during mapping phase. Model magnetizations indicated below are schematic only. This comparison illustrates well the rapid increase in magnitude of variations of smaller spatial scale observed at lower altitude.