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Information about MPC station 857 (Iowa Robotic Observatory, Sonoita).

Core informations from the MPC code files:

Code 857
Longitude 249.3992 (249:23:57 East)
cos(Latitude) 0.85213
sin(Latitude) +0.52204
Geocentric Latitude 31.49286 (31:29:34)
Geographic Latitude 31.66455 (31:39:52)
Altitude 1570 m (Note: The uncertainty maybe several meters at moment due to wrong values by the observer).
Radius 6372,337 km
Station Name Iowa Robotic Observatory, Sonoita
First observation 1999-11-08
Last observation 2021-02-19 (based on MPCAT)
Interval betwen first and last observation 7775
Number of observations 1119
Number of different observed objects 185
Number of used nights 70
MPEC objects https://mpec.jostjahn.de/857-stat.html
MPEC watch https://sbnmpc.astro.umd.edu/mpecwatch/byStation/station_857.html
Small Body Explorer https://sbx.dirac.dev/station/857
NEODyS-2 https://newton.spacedys.com/neodys/index.php?pc=2.1.2&o=857&ab=0
Google Search https://google.com/search?q=857+"Iowa Robotic Observatory - Sonoita"
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.