Détails: Mis à jour : 8 Juillet 2025

Event predictions

This page presents a selection of "best" events. These are also available through the Occultation Portal.

Please check Occult Watcher Cloud, for details and updates, in the specific feed of the ACROSS campaign.
OccultationPortalLogo
Here below you can find predictions for events by:

The asteroid (65 803) Didymos. This is the main target of ACROSS, and the target of the DART/Hera first planetary defence missions.
The 9 potential secondary targets of Hera (ESA) in the next 5 years: (29 886) Randytung, (42 532) 1995 OR, (54 212) 2000 HJ89, (88 992) 2001 TJ72, (95 802) Francismuir, (122 764) 2000 SX69, (169 549) 2002 EG105, (188 708) 2005 TR99 and (477 416) 2009 WW1.

NEAs with orbits that allow predictions with a decent probability of success, with a list of about 30 NEAs chosen according to their orbital quality (σ_a < 1e-9 au), size (D > 0.5 km) and presence in the Gaia DR3 database.

For each group, a table and images are published for the most accessible events in the following two months, and files with the full list of predicted events in XML format (produced by Occult) are shared at the end. It should be noted that, due to the low number of restrictions we apply in the XML files, they may have more than 20 000 events, in particular the general NEA files. 20 000 is the standard limit of events for Occult, as it claims that the processes involving a larger amount of events can slow down significantly. However, it is possible to raise this limit up to 100 000, the maximum Occult allows. To do that, it is necessary to enter the "Maintenance" section, choose "User Settings", go to "11. Asteroid occultations - Search and Display", where you can edit the limit. If necessary, the team can also provide smaller files upon request, for those who choose to keep this limit.

By accessible, we mean events with:

- Star Magnitude (Mv) <= 14.0;

- Maximum Duration (s) >= 0.2 (for the general NEA only);

- Path crosses significant amount of landmass on Earth's surface (not just oceans);

- Solar Elongation >= 45º;

- For the more general NEA events only, whether the path uncertainty is less than 5x the object's Diameter.

The tables have the essential information of each event: date, target asteroid's permanent number and name, target star's catalogue name and number, RA/Dec coordinates and Mv magnitude, and quantities related to the event, such as expected drop (in magnitudes), maximum duration (in seconds) and the general area of the globe where the event is visible. Also contained the Occu;t Map for every event. For the most promising Didymos events (red lines) and when requested by observers, the last column holds the .kmz file of the event with the predicted path and the topographic corrections applied.

IMPORTANT: The .xml tables are only propagated once for the whole month for simplicity, while all the events displayed here and in OWC have been propagated to the date of occultation. So the maps in the xml and these images may not match perfectly. If you are insterested in observing an event not included in OWC or this website, please contact the ACROSS team, in order to have access to the most precise map we can get for it.

Interesting events in the near future

Didymos

There are not any viable events by (65803) Didymos at the moment.

Other Didymos events for June-July in XML format for Occult ( ~300 in total).

See dedicated page for the event on January 21-22, 2023 !

Potential Hera secondary Targets

There are not any worth mentioning events by the potential Hera targets at the moment.

Other Hera events for June-July in XML format for Occult ( ~400 in total).

Other NEAs

Date	Asteroid		Star		RA			Dec			Conditions			Zone	Image
Date	Number	Name	Catalogue	Number	h	m	s	d	m	s	Mv	Drop	Duration	Zone	Image
07/02/2025	2100	Ra-Shalom	UCAC4	791-016363	5	43	11	68	4	8	13.6	4.5	0.26	Unknown
07/03/2025	2100	Ra-Shalom	UCAC4	792-016330	5	41	42	68	23	27	13.4	4.7	0.26	Unknown
07/06/2025	2100	Ra-Shalom	TYC	4351-00936-1	5	22	5	71	49	44	10.8	7.0	0.27	Unknown
07/07/2025	2100	Ra-Shalom	UCAC4	810-014324	5	21	5	71	59	5	13.6	4.1	0.27	Unknown
07/07/2025	3752	Camillo	UCAC4	719-059556	18	31	59	53	36	22	13.5	5.1	0.13	Unknown
07/08/2025	2100	Ra-Shalom	UCAC4	817-011637	5	11	47	73	13	4	13.3	4.3	0.28	Unknown
07/12/2025	2100	Ra-Shalom	UCAC4	838-006406	4	23	20	77	26	31	13.7	3.5	0.28	Unknown
07/15/2025	2100	Ra-Shalom	UCAC4	850-004242	3	30	22	79	49	27	13.3	3.6	0.28	Unknown
07/17/2025	2100	Ra-Shalom	UCAC4	854-003223	2	58	19	80	40	35	12.2	4.6	0.28	Unknown
07/20/2025	2100	Ra-Shalom	UCAC4	859-001292	1	29	37	81	46	20	13.2	3.4	0.28	Unknown
07/22/2025	2100	Ra-Shalom	UCAC4	859-000167	0	10	57	81	38	25	13.3	3.1	0.27	Unknown
07/23/2025	2100	Ra-Shalom	TYC	4613-01079-1	23	6	21	80	43	11	11.7	4.5	0.27	Unknown
07/24/2025	3200	Phaethon	TYC	2364-01273-1	3	51	0	35	29	26	12.0	6.7	0.3	Unknown
07/24/2025	2100	Ra-Shalom	UCAC4	853-015853	22	54	49	80	27	42	12.0	4.2	0.26	Unknown
07/26/2025	2100	Ra-Shalom	UCAC4	844-017358	22	2	39	78	39	12	12.7	3.3	0.26	Unknown
07/26/2025	16	Psyche	UCAC4	542-008216	4	6	11	18	12	21	11.9	0.6	7.66	Unknown
07/28/2025	2100	Ra-Shalom	UCAC4	831-020346	21	22	2	76	8	43	13.4	2.6	0.25	Unknown
07/30/2025	2100	Ra-Shalom	HIP	102933	20	51	16	72	56	53	8.2	7.5	0.24	Unknown
07/31/2025	2100	Ra-Shalom	UCAC4	811-028712	20	45	15	72	7	37	13.4	2.3	0.24	Unknown
07/31/2025	2100	Ra-Shalom	TYC	4455-00496-1	20	42	46	71	45	29	10.7	4.9	0.24	Unknown
08/02/2025	2100	Ra-Shalom	HIP	100645	20	24	28	68	21	53	8.2	7.3	0.23	Unknown
08/02/2025	2100	Ra-Shalom	UCAC4	793-033003	20	25	29	68	33	47	11.9	3.6	0.23	Unknown
08/03/2025	2100	Ra-Shalom	TYC	4244-00482-1	20	16	14	66	20	45	11.7	3.7	0.23	Unknown
08/05/2025	2100	Ra-Shalom	UCAC4	766-055669	20	5	53	63	10	21	12.3	3.1	0.22	Unknown
08/08/2025	2100	Ra-Shalom	UCAC4	734-064414	19	51	9	56	44	7	12.0	3.2	0.21	Unknown
08/09/2025	2100	Ra-Shalom	TYC	3935-00555-1	19	47	8	54	20	40	11.6	3.4	0.21	Unknown
08/10/2025	2100	Ra-Shalom	TYC	3569-00796-1	19	44	9	52	21	32	10.2	4.8	0.21	Unknown
08/10/2025	2100	Ra-Shalom	TYC	3569-00862-1	19	43	55	52	11	45	11.5	3.5	0.21	Unknown
08/10/2025	2100	Ra-Shalom	TYC	3569-01899-1	19	43	23	51	50	44	11.7	3.3	0.21	Unknown
08/11/2025	2100	Ra-Shalom	UCAC4	692-066855	19	39	5	48	23	44	12.9	2.2	0.21	Unknown
08/11/2025	2100	Ra-Shalom	TYC	3560-02078-1	19	38	56	48	18	34	11.5	3.4	0.21	Unknown
08/11/2025	2100	Ra-Shalom	UCAC4	699-068468	19	40	32	49	38	40	11.8	3.1	0.21	Unknown
08/11/2025	2100	Ra-Shalom	TYC	3564-03001-1	19	41	13	50	9	28	11.8	3.2	0.21	Unknown
08/11/2025	2100	Ra-Shalom	UCAC4	693-069706	19	39	11	48	28	42	12.2	2.8	0.21	Unknown
08/12/2025	2100	Ra-Shalom	UCAC4	689-069622	19	38	17	47	41	45	12.6	2.4	0.21	Unknown
08/12/2025	2100	Ra-Shalom	TYC	3556-00240-1	19	37	23	46	52	11	10.9	4.0	0.2	Unknown
08/12/2025	2100	Ra-Shalom	TYC	3556-01287-1	19	36	25	45	59	20	10.9	4.0	0.2	Unknown
08/12/2025	162173	Ryugu	UCAC4	380-076817	16	41	19	-14	8	35	11.2	9.8	0.15	Unknown
08/13/2025	3752	Camillo	TYC	2615-02174-1	17	44	33	34	24	40	11.7	6.8	0.09	Unknown
08/13/2025	2100	Ra-Shalom	HIP	96347	19	35	20	44	48	42	7.7	7.1	0.21	Unknown
08/13/2025	2100	Ra-Shalom	UCAC4	670-075881	19	34	27	43	54	20	10.6	4.3	0.2	Unknown
08/13/2025	2100	Ra-Shalom	TYC	3556-02399-1	19	35	51	45	23	18	11.3	3.5	0.2	Unknown
08/13/2025	2100	Ra-Shalom	TYC	3147-00579-1	19	35	23	44	57	30	11.8	3.1	0.2	Unknown
08/14/2025	2100	Ra-Shalom	TYC	3143-00721-1	19	33	12	42	35	26	11.2	3.6	0.2	Unknown
08/14/2025	2100	Ra-Shalom	UCAC4	659-074477	19	32	28	41	43	50	11.5	3.3	0.2	Unknown
08/14/2025	2100	Ra-Shalom	TYC	3143-00617-1	19	33	38	43	5	49	10.3	4.5	0.2	Unknown
08/15/2025	2100	Ra-Shalom	UCAC4	657-073796	19	32	4	41	13	1	12.8	2.2	0.2	Unknown
08/15/2025	2100	Ra-Shalom	TYC	3139-01230-1	19	32	3	41	12	49	11.7	3.1	0.2	Unknown
08/15/2025	2100	Ra-Shalom	UCAC4	649-070696	19	30	52	39	42	8	12.3	2.5	0.2	Unknown
08/16/2025	2100	Ra-Shalom	UCAC4	643-071347	19	29	59	38	27	45	12.3	2.5	0.2	Unknown
08/16/2025	2100	Ra-Shalom	UCAC4	643-071333	19	29	57	38	25	4	12.5	2.4	0.2	Unknown
08/16/2025	2100	Ra-Shalom	TYC	2666-00399-1	19	29	1	37	3	59	12.1	2.7	0.2	Unknown
08/17/2025	2100	Ra-Shalom	UCAC4	623-073793	19	27	26	34	35	35	12.4	2.4	0.2	Unknown
08/17/2025	2100	Ra-Shalom	UCAC4	627-071575	19	27	54	35	22	3	11.7	3.1	0.2	Unknown
08/17/2025	2100	Ra-Shalom	UCAC4	630-071142	19	28	9	35	48	45	12.0	2.8	0.2	Unknown
08/17/2025	2100	Ra-Shalom	UCAC4	632-071211	19	28	26	36	15	56	12.5	2.4	0.2	Unknown
08/17/2025	2100	Ra-Shalom	TYC	2666-00118-1	19	28	40	36	31	29	10.1	4.7	0.2	Unknown
08/17/2025	2100	Ra-Shalom	UCAC4	630-071176	19	28	13	35	54	17	12.5	2.4	0.2	Unknown
08/18/2025	2100	Ra-Shalom	TYC	2658-00552-1	19	26	25	32	54	8	10.9	3.9	0.2	Unknown
08/18/2025	2100	Ra-Shalom	UCAC4	613-076935	19	26	17	32	32	38	11.3	3.5	0.2	Unknown
08/19/2025	2100	Ra-Shalom	UCAC4	610-075776	19	25	55	31	59	12	12.6	2.3	0.2	Unknown
08/19/2025	2100	Ra-Shalom	UCAC4	609-074246	19	25	49	31	45	29	12.5	2.4	0.2	Unknown
08/19/2025	2100	Ra-Shalom	TYC	2137-01894-1	19	24	51	29	50	21	9.0	5.7	0.2	Unknown
08/19/2025	2100	Ra-Shalom	TYC	2137-00602-1	19	24	49	29	47	4	11.6	3.2	0.2	Unknown
08/20/2025	2100	Ra-Shalom	TYC	2137-00299-1	19	24	17	28	34	41	11.1	3.7	0.21	Unknown
08/20/2025	2100	Ra-Shalom	UCAC4	591-081335	19	24	6	28	4	29	12.3	2.5	0.21	Unknown
08/20/2025	2100	Ra-Shalom	TYC	2137-01941-1	19	24	24	28	53	20	10.7	4.1	0.2	Unknown
08/20/2025	2100	Ra-Shalom	TYC	2133-00679-1	19	23	52	27	36	27	12.4	2.4	0.21	Unknown
08/20/2025	2100	Ra-Shalom	TYC	2133-00013-1	19	24	6	28	3	52	11.4	3.4	0.21	Unknown
08/20/2025	2100	Ra-Shalom	TYC	2137-01247-1	19	24	17	28	35	19	10.7	4.1	0.21	Unknown
08/20/2025	2100	Ra-Shalom	UCAC4	595-078254	19	24	25	28	55	59	12.2	2.7	0.2	Unknown
08/20/2025	2100	Ra-Shalom	TYC	2137-01227-1	19	24	27	28	52	6	11.4	3.4	0.2	Unknown
08/20/2025	2100	Ra-Shalom	UCAC4	597-077550	19	24	36	29	14	51	11.5	3.3	0.2	Unknown
08/20/2025	2100	Ra-Shalom	TYC	2137-01783-1	19	24	43	29	25	59	10.7	4.1	0.2	Unknown
08/20/2025	2100	Ra-Shalom	UCAC4	598-079076	19	24	46	29	32	48	10.7	4.0	0.21	Unknown
08/20/2025	2100	Ra-Shalom	TYC	2137-01584-1	19	24	27	28	51	49	11.8	3.0	0.2	Unknown
08/21/2025	2100	Ra-Shalom	UCAC4	582-079142	19	23	22	26	21	53	11.8	3.0	0.21	Unknown
08/21/2025	2100	Ra-Shalom	UCAC4	582-079127	19	23	20	26	19	22	11.6	3.2	0.21	Unknown
08/21/2025	2100	Ra-Shalom	UCAC4	579-078732	19	23	5	25	36	28	12.1	2.7	0.21	Unknown
08/22/2025	2100	Ra-Shalom	TYC	2124-00186-1	19	22	27	23	55	25	11.1	3.7	0.21	Unknown
08/22/2025	2100	Ra-Shalom	TYC	2128-00741-1	19	22	43	24	32	3	10.7	4.1	0.21	Unknown
08/22/2025	2100	Ra-Shalom	TYC	2128-00160-1	19	22	54	25	10	20	11.9	2.9	0.21	Unknown
08/22/2025	2100	Ra-Shalom	TYC	2128-00561-1	19	23	0	25	21	33	10.9	3.9	0.21	Unknown
08/23/2025	2100	Ra-Shalom	HIP	95165	19	21	39	21	13	47	9.3	5.5	0.21	Unknown
08/25/2025	2100	Ra-Shalom	UCAC4	546-093063	19	21	6	19	8	27	11.1	3.8	0.21	Unknown
08/25/2025	2100	Ra-Shalom	HIP	95111	19	20	54	18	10	6	8.7	6.1	0.22	Unknown
08/26/2025	2100	Ra-Shalom	TYC	1600-00649-1	19	20	36	16	41	1	11.3	3.6	0.22	Unknown
08/26/2025	2100	Ra-Shalom	J	192025.72+152948.0	19	20	26	15	29	48	12.8	2.2	0.34	Unknown
08/27/2025	2100	Ra-Shalom	TYC	1054-00045-1	19	20	21	14	57	57	12.2	2.8	0.22	Unknown
08/27/2025	2100	Ra-Shalom	UCAC4	519-096567	19	20	12	13	40	22	11.5	3.5	0.22	Unknown
08/29/2025	2100	Ra-Shalom	UCAC4	509-100766	19	20	2	11	36	11	12.2	2.8	0.23	Unknown
08/29/2025	2100	Ra-Shalom	UCAC4	507-101542	19	20	1	11	16	10	11.6	3.4	0.23	Unknown

Other NEA targets' events for June-Julyin XML format for Occult (>10000 in total, caution with Occult limit!).