Object Response

Object Response Model

Name	Type	Description
oid	string	ZTF Object identifier
ndethist	string	Number of spatially-coincident detections falling within 1.5 arcsec going back to beginning of survey; only detections that fell on the same field and readout-channel ID where the input candidate was observed are counted. All raw detections down to a photometric S/N of ~ 3 are included.
ncovhist	integer	Number of times input candidate position fell on any field and readout-channel going back to beginning of survey
mjdstarthist	number	Earliest Modified Julian date of epoch corresponding to ndethist [days]
mjdendhist	number	Latest Modified Julian date of epoch corresponding to ndethist [days]
corrected	boolean	Whether the corrected light curve was computed and can be used
stellar	boolean	Whether the object is a likely stellar-like source
ndet	integer	Total number of detections for the object
g_r_max	number	Difference between the minimum g and r band difference magnitudes ( min(g) - min(r) )
g_r_max_corr	number	Difference between the minimum g and r band corrected magnitudes ( min(corrected(g)) - min(corrected(r)) )
g_r_mean	number	Difference between the mean g and r band difference magnitudes ( mean(g) - mean(r) )
g_r_mean_corr	number	Difference between the mean g and r band corrected magnitudes ( mean(corrected(g)) - mean(corrected(r)) )
firstmjd	number	First detection’s modified julian date
lastmjd	number	Last detection’s modified julian date
deltajd	number	Difference between last and first detection date
meanra	number	Mean Right Ascension
meandec	number	Mean Declination
sigmara	number	Right Ascension standard deviation
sigmadec	number	Declination standard deviation
class	string	Highest probability class or according to specified classifier and ranking (Default classifier: lc_classifier, ranking: 1)
classifier	string	Classifier name.
probability	number	Highest probability or according to specified classifier and ranking (Default classifier: lc_classifier, ranking: 1)
step_id_corr	string	CorrectionStep pipeline version.