If you want to send a regular e-mail to an individual MPC staff member, send the message to <first initial><surname>@cfa.harvard.edu.
Astrometric observations of minor planets, comets and natural satellites should not normally be reported via this form, but should be sent directly to email@example.com, formatted exactly as described in the Guide to Minor Body Astrometry.
If you have been told by MPC staff that your e-mail submissions are malformed (usually due to them being sent at HTML messages or as encoded attachments), paste your observations (including the required observational header) into this form. You will receive an ACK in the normal fashion. You may edit the subject line of the submitted message to a more appropriate one for your observations, if you so wish. Each message is limited to 32768 characters.
If you think that we have not received your observation submission, or if you think that we have not processed one of your batches, use this form.
Be sure to include the date and time you submitted the observations and mention whether or not you received an acknowledgement.
If the coordinates that we have on file for your site are incorrect or we have the site or observatory name incorrect, please use this form.
Do not use this form to report updated coordinates if you move your observatory! See the Guide to Minor Body Astrometry for further information.
If a link on this site is dead or mis-directed, use this form.
Be sure to include the URL on which the dead link resides and which link is at fault.
If the HTML code used on any page that displays the HTML 4.01-compliant icon is faulty, use this form.
Be sure to include the URL on which the faulty HTML is to be found. You do not need to detail the fault(s).
If you wish to request a new webpage or web service use this form.
If you need to contact us by postal mail, our address is: Mail Stop 18, 60 Garden Street, Cambridge, MA 02138, U.S.A.