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Information about MPC station D81 (Nagano).

Core informations from the MPC code files:

Code D81
Longitude 138.2239 (138:13:26 East)
cos(Latitude) 0.80310
sin(Latitude) +0.59394
Geocentric Latitude 36.48511 (36:29:06)
Geographic Latitude 36.66928 (36:40:09)
Altitude 362 m (Note: The uncertainty maybe several meters at moment due to wrong values by the observer).
Radius 6370,617 km
Station Name Nagano
First observation 2007-02-03
Last observation 2018-08-04 (based on MPCAT)
Interval betwen first and last observation 4201
Number of observations 4119
Number of different observed objects 252
Number of used nights 522
MPEC objects https://mpec.jostjahn.de/D81-stat.html
MPEC watch https://sbnmpc.astro.umd.edu/mpecwatch/byStation/station_D81.html
Small Body Explorer https://sbx.dirac.dev/station/D81
NEODyS-2 https://newton.spacedys.com/neodys/index.php?pc=2.1.2&o=D81&ab=0
Google Search https://google.com/search?q=D81+"Nagano"
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 07:58:55. (C) Jost Jahn, Amrum, Germany, codes@jostjahn.de.