P200 Observer Checklist and FAQ
Please find summary checklist and 'Frequently Asked Questions' for P200 observers below.
Frequently Asked Questions
1. Applying for Palomar Time
1.a. How do I apply for Palomar time?
Access to Palomar telescopes is based on your standing with a Palomar project or partner constituency. For example, partners in the Hale/P200 telescope are Caltech, JPL, NAOC, and Yale. Each of these partners manage their P200 time allocation independently and differently, so we’ll have to direct you to each of the partner time allocation process as appropriate for your situation.
If you are affiliated directly with Caltech, you can start by consulting our COO telescope time solicitation page.
NAOC-specific information [show]
The Telescope Access Program (TAP) gives all Chinese astronomers access to international ground-based facilities, including the Hale (P200) Telescope. Everyone who is planning a P200 proposal should check with the TAP website for call for proposals for specific details, including deadlines, proposal requirements, submission, evaluation and announcement process.
1.b. When can I apply for Palomar time?
Palomar telescopes are typically scheduled by observing semester; the A semester is February – July inclusive, and the B semester is August – January inclusive. Proposal solicitations typically are issued approximately five months before the start of the observing semester (so early March for B and early September for A semester), and allocation decisions/time assignments are typically announced two months before the start of the observing semester (so early June for B and early December for A semester).
If you are affiliated directly with Caltech, the COO telescope time solicitation page will provide information on solicitation, proposal format, submission deadlines, and notifications specific to the Caltech constituency.
2. Telescope & Instrument Scheduling & Configuration
2.a. How do we develop the telescope observing schedule?
The semester observing schedules are developed based on proposal inputs for designated programs from each of our constituencies. In particular the program cover sheets (that capture program scheduling preferences and constraints, and instrument configurations) are the key drivers in the scheduling process. We do our best to integrate all the program objectives, preferences, and constraints into a balanced, efficient, and cohesive telescope schedule. An important efficiency consideration is the degree to which we can “block schedule” programs with similar instrumentation needs together; minimizing instrument changes reduces wear and tear on the instrumentation and summit team.
Draft schedules are reviewed with the key observatory stakeholders (allocation contacts for each of our constituencies, and observatory personnel who must implement the schedule) before the schedule is finalized and posted on our reservation system web tool.
2.b. I have a schedule issue. How do I request a change to the telescope/observing schedule?
We get this a lot…
Inevitably individual program observers request changes to the schedule once it is posted. The Observatory looks to the change advocate to propose an alternative schedule variant and coordinate that proposal with all impacted programs in advance.
Email requesting a proposed telescope schedule change (copying the administrative PIs of all programs impacted by the proposed change) is sent to (COO Deputy Director) Andy Boden (bode [at] astro.caltech.edu), who will coordinate with Observatory personnel to assess the operations impact of the proposed schedule change. If the assessed impact is acceptable, the schedule change proposal will be accepted and implemented, and the impacted program contacts will be notified of the change.
Observatory judgement in telescope schedule change requests is final.
2.c. I cannot make my assigned telescope time, What now?
If you really cannot make your assigned telescope time then you should advise (COO Deputy Director) Andy Boden (bode [at] astro.caltech.edu) that you are returning the telescope time for reassignment. Please be specific on what dates are being returned, and with as much advance notice as possible so as to maximize the chances the time can be usefully reassigned to another investigation.
2.d. How do I define the instrument settings for my upcoming observing run?
Facility instrument settings are defined by using instrument settings forms available to qualified observers through the reservation system. Select your run number on the P200 observing schedule. You will see the primary and secondary instruments listed for your run. Open the “Edit Settings” link for each instrument to enter your desired settings, then press the “SAVE” button at the bottom of the page to record entries and/or edits. Note that your reservation system account must be designated as “cognizant”—either Principal Investigator or Lead Observer of the run—for you to edit instrument settings.
Only instruments assigned to/approved for your run will be available to you through this process.
2.e. How do I edit/modify the instrument settings/“green sheets” for my observing run?
Sometimes additional information comes to your attention as your run approaches and you wish to update instrument configurations. We request instrument settings are specified not less than two (2) weeks in advance of an upcoming observing run. The reservation system will support submission or edit of instrument settings up to four days in advance of your observing run. If you need to change instrument settings inside this four day window you must contact the support team to request changes.
To edit the instrument setting for an observing run (possible up until four days before the observing run), you open the observing “run” number on the observing schedule.
Opening the observing “run” number will bring up the details of the observing run.
Here’s an example of the details for an observing run. You’ll notice that there is not a link allowing you to edit the observing setup for the observing run because the person logged into the reservation system isn’t either the Principal Investigator or the Lead Observer. If you are logged into the system with the account of the Principal Investigator or the Lead Observer then a link appears next to the instrument name allowing you to access the associated “green sheet” where you can specify the required instrument parameters.
By opening the “Edit settings” link the “green sheet” for the associated instrument will be displayed (note each “green sheet” is different and customized for the particular instrument).
2.f. What if the system isn’t allowing me to edit my observing run information?
Sometimes the email address associated with the observing run when it is created does not correspond to the observer’s user name in the reservation system. As a result, the system does not accurately associate the observing run with your account. If this happens then contact the support astronomers in the afternoon (760) 742-2018 and they can edit the observing run to give you access or email jwm [at] astro.caltech.edu concerning the issue. Please let them know your username so they can identify the correct account.
2.g. How do I request a change of instrument, instrument configuration, or instrument addition?
Instrumentation assignment is defined as a part of the time allocation/telescope scheduling process. Instrumentation changes are controlled because they have the potential to complicate observatory operations.
Nonetheless, situations sometime arise where a change in instrumentation is desirable for your run. This instrument change request process parallels telescope schedule change requests: the run cognizant (either administrative Principal Investigator or Lead Observer—if they are different) submits a request to change, add, or reconfigure an instrument (relative to the baseline schedule), and the observatory will assess accommodating the request based on its operations impact. If the change request is accepted then the observing team will be advised of same, and the instrument configuration will reflect the request.
Users may submit an instrument change request in email to [COO Deputy Director] Andy Boden (bode [at] astro.caltech.edu), (Site Superintendent) Rick Burruss (burrus [at] caltech.edu), or the general Palomar support email list.
Observatory judgement in instrument configuration/addition change requests is final.
A particular note about secondary instrument addition requests: Observatory policy is to require constituent allocation judgement in the use of secondary instruments (e.g. Caltech requires TAC approval for secondary instrument use). Requests to add a secondary instrument outside the constituent time allocation process will be accommodated solely at the Observatory’s discretion and typically only if there is minimal operations impact.
2.h. What instrument changes may I request during my observing night?
Most nighttime instrument configuration choices are available as a part of the regular instrument configuration process. The configuration parameters specified in the instrument settings/"green sheets" are used by the day crew to define your instrument configuration for your run.
The observatory cannot support major instrument reconfigurations during an observing night; any changes requiring action by the instrument support crew must necessarily wait until daytime hours. Examples of unsupported nighttime instrument changes are DBSP grating and dichroic changes (grating angle changes are possible), CWI grating changes, WaSP filter wheel replacements (choosing among the four pre-configured WaSP filters is perfectly fine).
These configuration restrictions are a particularly important consideration if investigations/observers are sharing/splitting an observing night and instruments. For a shared run the Lead Observers must agree upon common instrument parameters; beyond the minor examples above these parameters are fixed for the observing night.
If you have any questions or concerns about possible instrument changes during a night of your run please direct them to the general Palomar support email list.
2.i. How do I define my observing location?
Starting in 2022B we are requiring cognizant observers to define their observing location choices (local vs. remote) as a part of their run setup using the Reservation System. In conjunction with the “green sheet” instrument setup pages you will be prompted to enter your remote/local run settings on the observing location form:
Remote observers can enter their remote observing IP addresses, anticipated start time, and any additional comments through this form. Until this form is completed and submitted the corresponding telescope schedule run entry will not display as complete (green color).
Please note that as of this writing reservations to use dedicated remote observing rooms (e.g. at Caltech or Yale) must be made separately—e.g. Caltech users please see the COO remote observing page.
3. Palomar Reservation System
3.a. I am a first-time Palomar observer. How do I create a new reservation system account?
Register for a new account by filling out/submitting the form on this page.
Once your account request is approved, you will receive an email with a link that will take you to a page where you can set a password for your login.
Step by step guide to creating a reservation system account.
Okay, take a deep breath. Here we go…
1) Open the “Registration” tab and then fill in the registration form.
Click the “Save” button.
You should receive the following email after initiating the registration request:
After you have placed the request, one of the Palomar staff will review the account and approve or disapprove the request. Once the request has been evaluated you should receive the following email:
2) After you receive the approval confirmation email you need to open the link and set the password on your account. The following page should appear when you follow the link:
After saving your password the following page should appear:
You can then follow the “log in” link to access your account.
3) Once you have logged into your account you can then edit your profile to include your dietary preferences and add billing accounts for your Monastery charges.
Edit your profile to add any dietary preferences.
Once you have saved your profile you can add Billing accounts by first selecting “Monastery” that will display the calendar and add a link for “My Billings Accounts” on the left hand menu.
Open the “My Billing Accounts” link and the following page will be displayed:
Click the “ADD BILLING ACCOUNT” button.
You can select the following types of accounts (account type selection menu):
Fill out the associated form and then click the “SAVE” button.
You will then see the created billing account on the following page:
If you go back and view your profile (“My Profile” link in the left-hand menu) the billing account you just created will show up in list of available linked accounts:
Whew! You are now finished with your registration process. Enjoy!
3.b. How do I log into my reservation system account?
Go to the reservation system login page. Your username will be the email address you used to register the reservation system account. If you need to reset your password, click the “Forgot your password?” link on the login page.
3.c. How do I submit and edit instrument settings for my run?
Please see FAQ 2.d and FAQ 2.e.
3.d. How long do I have to submit instrument settings for my run?
We request instrument settings are specified not less than two (2) weeks in advance of an upcoming observing run. The reservation system will support submission or edit of instrument settings up to four days in advance of your observing run. If you need to change instrument settings inside this four day window you must contact the support team to request changes.
Please also see FAQ 2.e.
3.e. How do I define my observing location?
Please see FAQ 2.i.
4. Palomar Observing
4.a. I intend to observe on-site at Palomar. How do I arrange on-site accommodations?
Observer on-site accommodation are provided at the Palomar “Monastery.” Please see the observer travel page for an overview of observer travel resources, including information about the Monastery and specific information for NAOC-designated observers.
You can book your Monastery reservations directly from the online reservation system, and in particular at the Monastery calendar page. A valid reservation system login is required.
Please note that if other members of your observing team intend to participate in the run remotely that information should be entered through the Run Location entry form (FAQ 2.i).
4.b. How do I make a Monastery reservation?
First login to your account on the reservation system and select the “Monastery” link on the left hand side of the screen. You will be taken to a calendar view similar to the one depicted below:
Note that each day in the calendar has a small “house” like icon below the moon phase image. Click on the “house” icon and a new form will come up that allows you to make a reservation.
Fill in the required items in the form (note the red asterisk denotes a required field) and then hit “SAVE.” Once you have saved the reservation, your name will be displayed on the Monastery calendar under the days you are scheduled to stay at the Monastery.
4.c. What are the Monastery guest fees?
Please see the observer travel page. In particular please note that there are significant financial “incentives” to book your Monastery reservations well in advance. Palomar is remote, so this advance planning information is important for our Monastery service providers.
4.d. I have certain dietary restrictions. How do I inform the Monastery service providers of same?
Log into the reservation system and click “My Profile” on the left, then click the “Edit My Profile” link at the bottom of the page. There is a field where you can enter any dietary requests you may have. These preferences will be stored for Monastery staff reference for all your subsequent Monastery stays.
4.e. What do I need to know to travel to Palomar?
Please see the observer travel page, including specific information for NAOC-designated observers.
4.f. What are the Monastery check-out and check-in times?
Monastery guest hours are somewhat flexible depending on room availability, but a check-out time around noon and a check-in time around 2p/14:00 Pacific Time are reasonable planning guidelines.
4.g. How do I find X at the Observatory?
Please see the observer travel page for an Observatory compound map.
4.h. Wait—what do you mean the Observatory compound has a security gate?
Please see the observer travel page.
4.i. How do I get into the 200-inch dome?
When you arrive at the Observatory, first go to the Observatory Office (before 4p Pacific Time—after hours arrival should be cleared in advance with your support astronomer). At the office you will document your vaccination status (Caltech requirement) and will sign up for a Monastery room and get a dome key as appropriate. At the 200-inch dome on the ground floor you can take the elevator to the observing floor (Press “O” in the elevator) to get to the data room.
First-time Palomar visitors should refer to the Observatory compound map in the observer travel page.
4.j. I intend to observe remotely. How do I request remote (P200) observing arrangements?
Remote observing (RO) at P200 is accomplished by VNC computer and videoconference connections. Palomar RO requests are submitted through the Reservation System (link FAQ 2.i).
4.k. When can I do my (P200) instrument calibrations?
You can start calibrations any time after the lights are turned off in the dome. Typically lights are off in the P200 dome at or around 3:30 pm (15:30) Pacific Time.
4.l. When should I arrive at the (P200) dome?
If you would like a tutorial or refresher on how to use the instrument, it is best to come to the dome an hour before you plan on taking calibrations. Otherwise, we recommend arriving when the lights are turned off in the dome so you can take any necessary calibrations.
4.m. What time is dinner at the Monastery?
The P200 observers are in charge of setting dinner time. When you arrive, check the chalk board in the monastery to see what the current dinner time is. If you would like to change it, inform the monastery staff of your preferred dinner time.
4.n. What time can I start (P200) observing?
The P200 telescope operator can open the dome any time after sunset, given safe weather conditions. When you meet the telescope operator, let him or her know when you’d like to start your observations.
5. Various and Sundry
5.a. How do I provide feedback on my Palomar experience?
We very much value your feedback—it helps us raise our game. Caltech Optical Observatories (the administrative home of Palomar Observatory on the Caltech campus) maintains a feedback submission portal. If you find this web interface inconvenient you may send email directly to coo-feedback [at] astro.caltech.edu. All feedback is considered confidential.
5.b. How do I contact Palomar Observatory?
Please see the Palomar website's contact page.
Questions? We've answered many common observing and operations questions in our observer FAQ page.