Metrics in run_moving.py script

The run_moving.py script runs a number of solar system object oriented metrics, and requires an input SSO observation file to run (e.g. you must generate this observation file using something like sims_movingObjects makeLSSTobs.py first).

QuickDiscoveryBatch

The QuickDiscoveryBatch is intended to provide a short but sweet set of discovery metric options. It just runs the Discovery Metric for SNR=5, with discovery criteria of 2 visits / night x 3 nights in a 15 (or 30) day window, using whichever version of trailing losses (detection = dmagDetect or trailing = dmagTrail) are specified. Please see lsst.sims.movingObjects for more information on detection vs trailing losses.

This will also produce differential and cumulative completeness estimates for the input population, both as a function of H magnitude and as a function of time.

Example of main output files:
baseline2018b_Discovery_2x3in15_MBAs_3_pairs_in_15_nights_SNReq5_detection_loss_MOOB.npz baseline2018b_Discovery_2x3in30_MBAs_3_pairs_in_30_nights_SNReq5_detection_loss_MOOB.npz
with additional ‘child’ (or derived) metric output files of:
baseline2018b_Discovery_N_Chances_MBAs_3_pairs_in_15_nights_SNReq5_detection_loss_MOOB.npz baseline2018b_Discovery_N_Chances_MBAs_3_pairs_in_30_nights_SNReq5_detection_loss_MOOB.npz baseline2018b_Discovery_Time_MBAs_3_pairs_in_15_nights_SNReq5_detection_loss_MOOB.npz baseline2018b_Discovery_Time_MBAs_3_pairs_in_30_nights_SNReq5_detection_loss_MOOB.npz
and summary metric files of:
xxxx

DiscoveryBatch

The DiscoveryBatch runs many more discovery metric options, exploring a wide range of discovery criteria. It runs the Discovery Metric looking for:

  • Using a probablistic SNR limit, around SNR=5 (but with a gentle falloff around this value):
    • 2 visits/night, 3 nights within a 15 day window
    • 2 visits/night, 3 nights within a 12 day window
    • 2 visits/night, 3 nights within a 20 day window
    • 2 visits/night, 3 nights within a 25 day window
    • 2 visits/night, 3 nights within a 30 day window
    • 2 visits/night, 4 nights within a 20 day window
    • 3 visits/night, 3 nights within a 30 day window
    • 4 visits/night, 3 nights within a 30 day window
  • Using a SNR=4 cutoff:
    • 2 visits/night, 3 nights within a 15 day window
    • 2 visits/night, 3 nights within a 30 day window
  • Using a SNR=3 cutoff:
    • 2 visits/night, 3 nights within a 15 day window
  • Using a SNR=0 cutoff:
    • 2 visits/night, 3 nights within a 15 day window
  • Using a probabilistic SNR limit, around SNR=5 (with a gentle falloff around that value):
    • Single detections
    • Just a single pair
Then there are some other discovery metrics, using a probabilistic SNR cutoff (around SNR=5):

CharacterizationBatch

The characterization batch runs a few metrics intended to shed light on characterization possibilities with LSST. These metrics and their rationale are described in more depth in the COSEP.