Cumulative scoring system for classification

1) Nearby targets:

  - d ≤ 40 Mpc (Vrec ≤ 3000 km/s)       		                            => +3   
  - d ≤ 25 MPc (Vrec ≤ 1800 km/s)                                                   => +6

2) Young targets (at classification):

  - tclass - (tdisc + tlim)/2 ≤ 4     				                    => +5	
  - tclass - (tdisc + tlim)/2 ≤ 7     				                    => +2
  - tclass - (tdisc + tlim)/2 ≤ 10	                                            => +1

3) Young targets (at discovery):

  - tdisc - tlim ≤ 2 		                          	                    => +3
  - tdisc - tlim ≤ 5                                                                => +1

4) "Hostless"

  - No apparent host galaxy in the discovery image (or fainter than M(B) > -18)     => +3

5) Remote location on E/SO & halos of spirals:

  - r≥15kpc		                                    	                    => +2
  - r≥25kpc			                                                    => +4

6) Multiple-SN hosts

  - Host galaxies with more than 3 SNe  (including the new one)		            => +2

7) Star-forming environments

  - Arp systems, transients in tidal tails or in dust lanes                         => +1

8) Peculiar light curves

  - Slow light curve rise (≥ 30 days), or fast decline (≥ 1 mag/5days)	            => +2

9) Alerts

  - GRB and/or XRF alerts			                                    => +4

10) Absolute magnitude criteria:

  - super-luminous transients (M ≤ -20)                                             => +4
  - very luminous transients (-20 < M < -19.5)		                            => +2	
  - very faint transients (-15.5 < M < -14.5)				            => +2
  - ultra-faint transients (M ≥ -14.5)						    => +4

11) Pre-discovery variability history

  - past, pre-SN detections				                            => +3

12) AGN candidate contamination

  - transient in the galaxy nucleus                                                 => -1

13) Short visibility window

  - object that cannot be follow for more than 3 weeks			            => -5


Notes: - tclass = is the time when the classification is expected to be performed; tdisc = is the time of the earliest detection; tlim = is the epoch of the latest pre-discovery limit. - for the host galaxy distance use spectroscopic-z when available, otherwise photo-z; the webpage with the classification targets should contain all the information useful for computing the cumulative score (z, interstellar extinction, cross-ref with catalogues and circulars/astronomic telegrams, visibility window, current relative position of the moon, etc...)

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