Variable/transient alerts from the ZTF data obtained via LCO MARS

Number of unique lenses giving alerts since 02 Dec 2022 : 41

last updated: 31 Jan 2023

Alert Objects													Lenses
	ztf_date	ztf_objectId	ztf_lco_id link	ALeRCE link	DECaLS link	PanSTARRS link	ztf_RA (deg)	ztf_Dec (deg)	ztf i_mag	phot pts	ztf filter	d_obj-len (arcsec)	lens disc_name	RA (deg)	Dec (deg)	survey	lens type	zlens	disc meth
1	28 Jan 2023	ZTF19aamgtya	297326740	See it	See it	See it	136.017219	15.215097	19.25	110	r	0.40	SDSS J0904+1512	136.017320	15.215150	mld_galA	GX	---	---
2	28 Jan 2023	ZTF18abtmtpq	297240278	See it	See it	See it	41.642113	-8.426735	17.63	344	r	0.17	SDSS J0246-0825	41.642076	-8.426707	mld_galA	GX	0.723	---
3	28 Jan 2023	ZTF22aahdkqx	297340241	See it	See it	See it	155.295855	49.225011	20.14	10	r	0.32	SDSS J1021+4913	155.295909	49.225094	mld_galA	GX	0.451	---
4	28 Jan 2023	ZTF18aafrghj	297318742	See it	See it	See it	125.067170	8.204419	19.24	205	r	0.16	ULAS J0820+0812	125.067130	8.204438	mld_galA	GX	0.803	---
5	28 Jan 2023	ZTF18adjnpuq	297372840	See it	See it	See it	163.670106	27.551696	18.41	213	g	0.38	SDSS J1054+2733	163.670166	27.551788	mld_galA	GX	---	---
6	28 Jan 2023	ZTF18acvguop	297370522	See it	See it	See it	169.570545	7.766062	18.78	197	g	1.02	PG1115+080	169.570830	7.766030	mld_galA	GX	0.310	---
7	28 Jan 2023	ZTF18adowqfv	297383561	See it	See it	See it	172.077051	24.038111	19.36	244	g	0.27	SDSS J1128+2402	172.077044	24.038185	mld_galA	GX	---	---
8	28 Jan 2023	ZTF19acmwtza	297382348	See it	See it	See it	178.826089	19.661660	19.13	27	g	3.70	B1152+200	178.825000	19.661720	mld_galA	GX	0.439	---
9	28 Jan 2023	ZTF18acaxelp	297451120	See it	See it	See it	248.454024	31.570006	18.96	61	g	0.15	FBQ 1633+3134	248.454000	31.569970	mld_galB	GX	0.680	---
10	28 Jan 2023	ZTF18abwbjev	297231321	See it	See it	See it	69.561961	-12.287446	18.74	75	r	1.81	HE0435-1223	69.561500	-12.287220	mld_galA	GX	0.454	---
11	27 Jan 2023	ZTF19adcgern	297096402	See it	See it	See it	193.578794	22.593610	20.10	42	r	0.70	SDSS J1254+2235	193.578954	22.593484	mld_galA	GX	---	---
12	27 Jan 2023	ZTF20abfrawy	297094952	See it	See it	See it	172.990746	19.257711	19.36	55	r	0.77	SDSS J1131+1915	172.990520	19.257697	mld_galA	GX	---	---
13	27 Jan 2023	ZTF18abvgivp	297081418	See it	See it	See it	123.380377	25.750869	16.93	239	g	0.58	HS0810+2554	123.380200	25.750900	mld_galA	GX	0.890	---
14	27 Jan 2023	ZTF18aazgzde	297097570	See it	See it	See it	192.781608	29.594592	19.08	187	r	0.15	SDSS J1251+2935	192.781560	29.594585	mld_galA	GX	0.410	---
15	27 Jan 2023	ZTF19aavrcll	297112102	See it	See it	See it	200.651800	10.877704	19.02	207	r	0.38	SDSS J1322+1052	200.651743	10.877614	mld_galA	GX	0.550	---
16	27 Jan 2023	ZTF18acwypzj	297108796	See it	See it	See it	204.779857	13.177472	19.67	58	r	0.83	SDSS J1339+1310	204.779741	13.177673	mld_galA	GX	---	---
17	27 Jan 2023	ZTF18aczejec	297076217	See it	See it	See it	141.232549	2.323718	19.39	81	g	0.45	SDSS J0924+0219	141.232487	2.323611	mld_galA	GX	0.394	---
18	27 Jan 2023	ZTF19aaapljx	297112043	See it	See it	See it	213.942628	11.495351	18.23	66	r	4.07	H1413+117	213.941670	11.494720	mld_galA	GX	2.520	---
19	27 Jan 2023	ZTF18acmqplu	297022762	See it	See it	See it	129.545446	24.895292	19.24	86	r	0.38	SDSS J0838+2453	129.545563	24.895294	siloMaNGA	CX	---	---
20	27 Jan 2023	ZTF18aawekzn	297118470	See it	See it	See it	228.910521	15.193174	19.61	80	r	1.10	SDSS J1515+1511	228.910808	15.193303	mld_galA	GX	0.742	---
21	27 Jan 2023	ZTF18aannfgz	297098812	See it	See it	See it	237.519587	42.308423	19.49	1	r	0.77	SDSS J1550+4218	237.519547	42.308636	siloMaNGA	CX	---	---
22	27 Jan 2023	ZTF19aasdsye	297118670	See it	See it	See it	232.411963	10.634406	19.43	26	r	0.49	ULAS J1529+1038	232.412100	10.634419	mld_galB	GX	---	---
23	27 Jan 2023	ZTF18aahvkwq	297096890	See it	See it	See it	194.576069	29.128724	16.47	9	r	0.36	SDSS J1258+2907	194.575989	29.128794	siloMaNGA	CX	---	---
24	27 Jan 2023	ZTF18aczejec	297076217	See it	See it	See it	141.232549	2.323718	19.39	81	g	1.81	092455+021923	141.232604	2.323219	SuGOHI4	GQ	0.394	C
25	25 Jan 2023	ZTF18adbzccu	296748015	See it	See it	See it	172.964833	-12.532860	19.04	151	g	2.97	RXJ1131-1231	172.964000	-12.533000	mld_galA	GX	0.295	---
26	24 Jan 2023	ZTF22aaizlxw	296460184	See it	See it	See it	208.276696	11.634627	19.25	45	r	0.89	SDSS J1353+1138	208.276443	11.634643	mld_galA	GX	0.300	---
27	24 Jan 2023	ZTF18adowncw	296445895	See it	See it	See it	181.623900	43.538566	19.36	71	g	1.60	SDSS J1206+4332	181.623526	43.538213	mld_galA	GX	0.748	---
28	24 Jan 2023	ZTF19aaozogc	296456786	See it	See it	See it	203.895127	1.301459	19.64	68	r	0.66	LBQS1333+0113	203.894968	1.301549	mld_galA	GX	0.440	---
29	23 Jan 2023	ZTF17aackqxr	296082056	See it	See it	See it	43.790487	-0.177482	18.13	12	r	1.36	SDSS J0255-0010	43.790485	-0.177861	siloMaNGA	CX	---	---
30	21 Jan 2023	ZTF23aaaoxkx	295968337	See it	See it	See it	150.368742	50.466422	18.90	101	r	2.49	SDSS J1001+5027	150.369217	50.465799	mld_galA	GX	0.415	---
31	14 Jan 2023	ZTF19aaccicg	295701480	See it	See it	See it	61.226488	-26.992187	16.21	5	g	8.88	DESI-061.2266-26.9897	61.226589	-26.989721	DECaLS	CX	(0.25)	V
32	24 Dec 2022	ZTF20aclxwgg	294662717	See it	See it	See it	350.529850	19.739708	20.16	36	r	2.30	PSS2322+1944	350.529170	19.739720	mld_galB	GX	1.230	---
33	24 Dec 2022	ZTF20acmvrmi	294796959	See it	See it	See it	150.506288	2.058150	20.40	22	g	0.19	100201+020330	150.506300	2.058200	SuGOHI7	GQ	0.439	V
34	23 Dec 2022	ZTF19adaqtwt	294566718	See it	See it	See it	115.969190	24.962112	20.64	35	r	0.18	SDSS J0743+2457	115.969245	24.962124	mld_galA	GX	0.381	---
35	23 Dec 2022	ZTF18aczehtp	294604103	See it	See it	See it	133.976123	0.852965	19.49	378	g	0.38	SDSS J0855+0051	133.976166	0.853061	siloMaNGA	CX	---	---
36	23 Dec 2022	ZTF19aalohuh	294619996	See it	See it	See it	186.533641	-0.100571	19.56	168	g	0.76	SDSS J1226-0006	186.533437	-0.100630	mld_galA	GX	0.516	---
37	23 Dec 2022	ZTF18acmahsp	294315944	See it	See it	See it	340.126015	3.358503	18.06	55	r	4.07	Q2237+0305	340.125000	3.358000	mld_galA	GX	0.039	---
38	22 Dec 2022	ZTF19aaaezxb	294231595	See it	See it	See it	158.391749	7.190567	20.04	100	r	0.11	B1030+074	158.391770	7.190590	mld_galA	GX	0.599	---
39	22 Dec 2022	ZTF18adiccnv	294099580	See it	See it	See it	351.083582	14.646930	19.40	7	r	0.79	SDSS J2324+1438	351.083679	14.647129	siloMaNGA	CX	---	---
40	21 Dec 2022	ZTF18abottpj	293809171	See it	See it	See it	12.615879	-17.669237	18.17	158	g	1.80	HE0047-1756	12.615500	-17.668890	mld_galA	GX	0.407	---
41	18 Dec 2022	ZTF18aasvvct	293180953	See it	See it	See it	196.358599	53.591515	17.97	20	r	2.39	SDSS J1305+5335	196.357559	53.591759	siloMaNGA	CX	---	---

The links given with lco_ids fetch us some data fields for each alert. These fields are described in ztf-avro-alert schema.
For help on downloading the data from LCO MARS, you can visit the MARS help page.

Metadata of the column labels

	Object type	Column name	Description
1	Alert Objects	ztf_date	Latest date of the event-alert as obtained from ZTF via LCO MARS
2		ztf_objectId	Unique object ID of the alert
3		ztf_lco_id	Unique ID for the alert, assigned by LCO (not unique for the given obejct.)
4		ALeRCE	Information of the alert object in ALeRCE database.
5		DECaLS	Image of the alert object in DECaLS map.
6		PanSTARRS	Image cutout of the alert object in PanSTARRS database.
7		ztf_RA	Right Ascension of candidate; J2000 (deg)
8		ztf_Dec	Declination of candidate; J2000 (deg)
9		ztf i_mag	i-band magnitude from PSF-fit photometry (mag) (same as magpsf)
10		phot pts	Number of alerts found for the given ztf_objectId till the date shown by ztf_date.
11		ztf filter	photometry filter name - one of (g,r,i)
12		d_obj-lens	distance of the alert object from the lens (arcsec)
13	Lenses	lens disc_name	discovery name of the lens around which the alert is found.
14		RA	Right Ascension of the lens; J2000 (deg)
15		Dec	Declination of the lens; J2000 (deg)
16		survey	A name of the survey containing this lens.
17		lens_type	Whether the lens is a Galaxy (G), a Quasar (Q), a Cluster (C), data not available (X). A pair of two letters like GG, GQ, CG represent the lens-source system from where the lens is identified. Other labels like "In lensed arc" are used when the lens is taken from a known lensed arc system. Note: These labels decide the cone search radius around the lens system, i.e. systems with CX would have been assigned a large search radius than galaxy scale lens systems. Hence sometimes you may find that in requirement of a large angular search radius, wrong labels are assigned. Hence please double check the value of this column.
18		zlens	Redshift of the lens in format: specz(photz) e.g. if specz happens to not be available in our database and photoz is availabe then you'll only see a value in paranthesis.
19		disc meth	TO BE UPDATED IN SOME TIME.