Proposal for Chandra Cycle 14 Observations

There are only 100 days left until the Mar 15 2012 deadline for Chandra proposals.

All field names link to the RPS help file for Chandra.
Targets are unnecessary for Archive/Theory proposals. Targets will not be processed for these proposals.
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Target Number
Target Description

(select one or more keywords,
maximum of 255 characters)

Please use IAU-sanctioned names and verify before submission with Target/Coordinate Check button at the top of RPS webform.
Target Name
Solar System Object
Is target position known and fixed?   
Enter coordinates in J2000:
  hh mm ss.s or ddd.dddd
  +/-dd mm ss.s or +/-dd.dddd
Grids: Any observation intended to be part of a grid must have other similar pointings within 1 degree to qualify for a reduced slew tax. To be clear, in the final grid, no pointing may be farther than 1 degree from its nearest neighbor. Individual pointings within a grid may be entered as separate targets. Alternately, for a large number of pointings with identical observing parameters, you may specify all pointings by entering the average R.A. and Dec of the grid pointings in the R.A. and Dec fields above, and then also specifying the 3 general grid parameters below. Proposer MUST provide a detailed description of the grid positions on the sky in the science justification (preferably a figure).

Offset Pointings : Leave blank for default offsets.


  If this is a multi-cycle target, please enter:
All count rates are to be specified as observed (not pile-up corrected).
(c/s) For Gratings, this is the zero order count rate
(c/s) Used only for Gratings

HRC Parameters

ACIS Required Parameters

WARNING! CC mode will not result in an image.
CCDs On: Y (Required), N (turn off) or O# (Optional with Turn-off order)
Most science programs should specify a total of 5 or fewer CCDs (where total is the sum of required CCDs "Y" and optional CCDs "O#").
All science programs that request a total of 6 CCDs must specify at least one Optional CCD.
See the Optional Chips page.

If you are using ACIS-I with no grating:

ACIS Optional Parameters that affect PILEUP :

-- OR --

Please ensure that your target falls within the chosen subarray (e.g. use ObsVis)


ACIS Optional Parameters that affect TELEMETRY :


If Y, please ensure that your target falls within the chosen subarray. (e.g. use ObsVis)

Window Order Chip ID Sampling Frequency
Accept 1:n events (0=none,1=all, etc.)
Starting Column (1-1023) Column Width (1-1024) Starting Row (1-1023) Row Height (1-1024) Lower Energy Threshold (keV) Energy Range (keV)
* Starting Row and Row Height only apply to 2-dimensional windows (i.e., TE-mode)
Additional spatial windows : If you need to specify more windows, define them in the space below, one per line, with the following comma-delimited values: window order (4-36), chip ID (I0-S5), sampling frequency (0-255), starting column and width, starting row and height, lower energy threshold (0.08-15.0 keV), and energy range (0.1-15.0 keV).


  • If any constraint is set to Y (i.e., required), the observation is time constrained and therefore subject to the limits set for the number of approved constrained observations during the Chandra Peer Review.
  • BEFORE SUBMISSION, please click the Constraints/SlewTax button to estimate the constraint difficulty level of each target and the total slew tax for your proposal.
  • You may want to use the PRoVis tool to investigate Chandra spacecraft roll, pitch and visibility for your target as a function of date. Chandra Mission Planning schedules all observations, but information from PRoVis can be especially useful for proposers whose observations require constraints.
  • If necessary, the MaxExpo webpage allows you to estimate the maximum uninterrupted Chandra exposure time per orbit as a function of pitch and season.

Window Constraints   Use the largest viable window.
Do not enter window constraints merely to indicate periods of sunblock, as these are accounted for by Chandra Mission Planning. The format for entering dates is dd-mon-yyyy hh:mm

Window Constraint? Window Start Window Stop

Roll Constraints   A roll constraint translates directly into a constraint on the day and time when an observation may be carried out. It should only be specified for cases in which a specific attitude is required to meet scientific objectives.
Roll Constraint? Roll Angle Roll Tolerance 180 Rotation?


Monitor Observations: A maximum of 20 monitor observations are allowed. Additional entries will be displayed when the Exposure Time for entry 5,10, and/or 15 is entered and the user Verifies the form.
Monitor Exposure Time Minimum Time Interval(days) Maximum Time Interval(days)

Grouping Targets: If this target needs to be observed within a relative time range with other targets in this proposal, select 'Y' for Group Observation? and enter a unique Group Identification to be used for all targets in the group. Enter the maximum time interval that you wish all targets to be observed. This is often used for rasters or grids to facilitate alignment of roll angles.

Note: This will be counted as a constraint. It is normally not necessary unless T>20ksec.
Uninterrupted or Contiguous Observation Required?

Note: Ground-based observations other than the EVLA are only available as a Preferred constraint.

(600 characters)

on TOO Details

Is this the trigger target for a TOO?
If this TOO is a resubmission of a proposal approved in the previous Cycle, should this TOO be canceled if the previous Cycle TOO is triggered?

Note:If this is the trigger target for a TOO, please specify the exact CXC response window, probability, trigger criteria and any followups. These fields should NOT be specified if this target is a TOO followup, even if the followup specifies a different instrument configuration than the trigger target. The response to a TOO will be classified according to the minimum time delay between trigger and observation. The faster the Chandra response, the more difficult and the more limited the number of TOOs allowed.
Exact CXC response start window (days)   This affects the peer review TOO Response Type category!
Exact CXC response stop window (days)  
Probability of TOO occurring in this cycle
Exact TOO trigger criteria (400 characters)

Alternate Targets
If you are specifying alternate targets in this proposal for a group of TOOs, please identify a group name and then specify the number of targets you are requesting for this group. For example, if you want to observe 1 of 3 TOOs in this proposal, then the 3 TOO's should all specify the same group name (i.e.: alt1) and the number of targets requested would be '1'. The alternate targets can then be added using the Add Target button. You must specify the identical group name for all the alternate targets.
Alternate Target Group Name:
Number of targets requested for this alternate group:

Followup Observations
If followup TOO observations are being proposed, please enter the exposure time for the initial target and then the exposure time, minimum and maximum time intervals, and target number for each followup in the Followup Summary form below. We strongly recommend you refer to the detailed instructions.

TOO Followup Summary Form
FollowupExposure Time Minimum Time Interval(days) Maximum Time Interval(days) Observation Parameters specified by
Target Number

TOO followup instructions (1500 characters)

TOO Coordinated Observations:

Indicate all of the coordinated observations (simultaneous or contemporaneous) associated with this TOO in the appropriate box for coordination with other observatories. This includes observations already approved under other programs, even if time is not requested as part of this proposal. Coordinated observations included only in proposal text will not be recognized or accepted. For non-Chandra observations approved after your Chandra proposal has been accepted, you may request coordination if and when you trigger your TOO. Any such request for additional coordination or observing constraints must be made to the Director and approved by the Chandra Director's Office. For a constraint approved in this way, the CXC will try to accommodate on a best efforts basis.


RPS was written at the HEASARC and
modifications to support Chandra were made at the CXC.