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Information about MPC station W90 (Phillips Exeter Academy Grainger Observatory).

Core informations from the MPC code files:

Code W90
Longitude 289.05814 (289:03:29 East)
cos(Latitude) 0.732740
sin(Latitude) +0.678229
Geocentric Latitude 42.78755 (42:47:15)
Geographic Latitude 42.97945 (42:58:46)
Altitude 9 m (Note: The uncertainty maybe several meters at moment due to wrong values by the observer).
Radius 6368,314 km
Station Name Phillips Exeter Academy Grainger Observatory
First observation 2015-09-17
Last observation 2020-09-21 (based on MPCAT)
Interval betwen first and last observation 1832
Number of observations 54
Number of different observed objects 13
Number of used nights 14
MPEC objects https://mpec.jostjahn.de/W90-stat.html
MPEC watch https://sbnmpc.astro.umd.edu/mpecwatch/byStation/station_W90.html
Small Body Explorer https://sbx.dirac.dev/station/W90
NEODyS-2 https://newton.spacedys.com/neodys/index.php?pc=2.1.2&o=W90&ab=0
Google Search https://google.com/search?q=W90+"Phillips Exeter Academy Grainger Observatory"
Location Geohack OpenStreet Map Satellite chart

This research has made use of data and/or services provided by the International Astronomical Union's Minor Planet Center.

Made with obs-stat at 06-04-2026 07:58:57. (C) Jost Jahn, Amrum, Germany, codes@jostjahn.de.