Détails: Mis à jour : 12 Août 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.
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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
08/02/2025	2100	Ra-Shalom	UCAC4	793-033003	20	25	29	68	33	47	11.9	3.6	0.23	North America
08/02/2025	2100	Ra-Shalom	HIP	100645	20	24	28	68	21	53	8.2	7.3	0.23	North America
08/03/2025	2100	Ra-Shalom	TYC	4244-00482-1	20	16	14	66	20	45	11.7	3.7	0.23	North America
08/05/2025	2100	Ra-Shalom	UCAC4	766-055669	20	5	53	63	10	21	12.3	3.1	0.22	Europe
08/08/2025	2100	Ra-Shalom	UCAC4	734-064414	19	51	9	56	44	7	12.0	3.2	0.21	Europe , South America
08/09/2025	2100	Ra-Shalom	TYC	3935-00555-1	19	47	8	54	20	40	11.6	3.4	0.21	North America
08/10/2025	2100	Ra-Shalom	TYC	3569-00796-1	19	44	9	52	21	32	10.2	4.8	0.21	North America
08/10/2025	2100	Ra-Shalom	TYC	3569-00862-1	19	43	55	52	11	45	11.5	3.5	0.21	North America
08/10/2025	2100	Ra-Shalom	TYC	3569-01899-1	19	43	23	51	50	44	11.7	3.3	0.21	North America
08/11/2025	2100	Ra-Shalom	UCAC4	692-066855	19	39	5	48	23	44	12.9	2.2	0.21	North America
08/11/2025	2100	Ra-Shalom	UCAC4	693-069706	19	39	11	48	28	42	12.2	2.8	0.21	North America
08/11/2025	2100	Ra-Shalom	TYC	3560-02078-1	19	38	56	48	18	34	11.5	3.4	0.21	Europe
08/11/2025	2100	Ra-Shalom	TYC	3564-03001-1	19	41	13	50	9	28	11.8	3.2	0.21	Europe
08/11/2025	2100	Ra-Shalom	UCAC4	699-068468	19	40	32	49	38	40	11.8	3.1	0.21	Europe
08/12/2025	2100	Ra-Shalom	UCAC4	689-069622	19	38	17	47	41	45	12.6	2.4	0.21	North America
08/12/2025	2100	Ra-Shalom	TYC	3556-00240-1	19	37	23	46	52	11	10.9	4.0	0.2	Japan
08/12/2025	2100	Ra-Shalom	TYC	3556-01287-1	19	36	25	45	59	20	10.9	4.0	0.2	Africa
08/12/2025	162173	Ryugu	UCAC4	380-076817	16	41	19	-14	8	35	11.2	9.8	0.15	South America
08/13/2025	2100	Ra-Shalom	TYC	3556-02399-1	19	35	51	45	23	18	11.3	3.5	0.2	North America
08/13/2025	2100	Ra-Shalom	TYC	3147-00579-1	19	35	23	44	57	30	11.8	3.1	0.2	North America
08/13/2025	2100	Ra-Shalom	HIP	96347	19	35	20	44	48	42	7.7	7.1	0.21	Australia
08/13/2025	3752	Camillo	TYC	2615-02174-1	17	44	33	34	24	40	11.7	6.8	0.09	Australia
08/13/2025	2100	Ra-Shalom	UCAC4	670-075881	19	34	27	43	54	20	10.6	4.3	0.2	Europe
08/14/2025	2100	Ra-Shalom	UCAC4	659-074477	19	32	28	41	43	50	11.5	3.3	0.2	South America
08/14/2025	2100	Ra-Shalom	TYC	3143-00617-1	19	33	38	43	5	49	10.3	4.5	0.2	North America
08/14/2025	2100	Ra-Shalom	TYC	3143-00721-1	19	33	12	42	35	26	11.2	3.6	0.2	Japan
08/15/2025	2100	Ra-Shalom	TYC	3139-01230-1	19	32	3	41	12	49	11.7	3.1	0.2	Europe
08/15/2025	2100	Ra-Shalom	UCAC4	649-070696	19	30	52	39	42	8	12.3	2.5	0.2	Europe
08/15/2025	2100	Ra-Shalom	UCAC4	657-073796	19	32	4	41	13	1	12.8	2.2	0.2	Japan
08/16/2025	2100	Ra-Shalom	UCAC4	643-071347	19	29	59	38	27	45	12.3	2.5	0.2	North America
08/16/2025	2100	Ra-Shalom	UCAC4	643-071333	19	29	57	38	25	4	12.5	2.4	0.2	North America
08/16/2025	2100	Ra-Shalom	TYC	2666-00399-1	19	29	1	37	3	59	12.1	2.7	0.2	Europe
08/17/2025	2100	Ra-Shalom	TYC	2666-00118-1	19	28	40	36	31	29	10.1	4.7	0.2	South America
08/17/2025	2100	Ra-Shalom	UCAC4	632-071211	19	28	26	36	15	56	12.5	2.4	0.2	Europe , South America
08/17/2025	2100	Ra-Shalom	UCAC4	630-071176	19	28	13	35	54	17	12.5	2.4	0.2	North America
08/17/2025	2100	Ra-Shalom	UCAC4	630-071142	19	28	9	35	48	45	12.0	2.8	0.2	North America
08/17/2025	2100	Ra-Shalom	UCAC4	627-071575	19	27	54	35	22	3	11.7	3.1	0.2	Australia
08/17/2025	2100	Ra-Shalom	UCAC4	623-073793	19	27	26	34	35	35	12.4	2.4	0.2	Europe
08/18/2025	2100	Ra-Shalom	TYC	2658-00552-1	19	26	25	32	54	8	10.9	3.9	0.2	Australia
08/18/2025	2100	Ra-Shalom	UCAC4	613-076935	19	26	17	32	32	38	11.3	3.5	0.2	Africa
08/19/2025	2100	Ra-Shalom	TYC	2137-00602-1	19	24	49	29	47	4	11.6	3.2	0.2	Europe
08/19/2025	2100	Ra-Shalom	TYC	2137-01894-1	19	24	51	29	50	21	9.0	5.7	0.2	Europe , South America
08/19/2025	2100	Ra-Shalom	UCAC4	610-075776	19	25	55	31	59	12	12.6	2.3	0.2	Europe
08/19/2025	2100	Ra-Shalom	UCAC4	609-074246	19	25	49	31	45	29	12.5	2.4	0.2	Europe
08/20/2025	2100	Ra-Shalom	TYC	2137-01247-1	19	24	17	28	35	19	10.7	4.1	0.21	North America
08/20/2025	2100	Ra-Shalom	TYC	2133-00013-1	19	24	6	28	3	52	11.4	3.4	0.21	North America
08/20/2025	2100	Ra-Shalom	UCAC4	591-081335	19	24	6	28	4	29	12.3	2.5	0.21	North America
08/20/2025	2100	Ra-Shalom	TYC	2137-00299-1	19	24	17	28	34	41	11.1	3.7	0.21	North America
08/20/2025	2100	Ra-Shalom	TYC	2137-01584-1	19	24	27	28	51	49	11.8	3.0	0.2	North America
08/20/2025	2100	Ra-Shalom	TYC	2133-00679-1	19	23	52	27	36	27	12.4	2.4	0.21	Australia
08/20/2025	2100	Ra-Shalom	TYC	2137-01941-1	19	24	24	28	53	20	10.7	4.1	0.2	Australia
08/20/2025	2100	Ra-Shalom	UCAC4	595-078254	19	24	25	28	55	59	12.2	2.7	0.2	Australia
08/20/2025	2100	Ra-Shalom	UCAC4	597-077550	19	24	36	29	14	51	11.5	3.3	0.2	Australia
08/20/2025	2100	Ra-Shalom	TYC	2137-01783-1	19	24	43	29	25	59	10.7	4.1	0.2	Africa
08/20/2025	2100	Ra-Shalom	UCAC4	598-079076	19	24	46	29	32	48	10.7	4.0	0.21	Africa
08/20/2025	2100	Ra-Shalom	TYC	2137-01227-1	19	24	27	28	52	6	11.4	3.4	0.2	Europe
08/21/2025	2100	Ra-Shalom	UCAC4	579-078732	19	23	5	25	36	28	12.1	2.7	0.21	Australia
08/21/2025	2100	Ra-Shalom	UCAC4	582-079127	19	23	20	26	19	22	11.6	3.2	0.21	Australia
08/21/2025	2100	Ra-Shalom	UCAC4	582-079142	19	23	22	26	21	53	11.8	3.0	0.21	Europe
08/22/2025	2100	Ra-Shalom	TYC	2128-00561-1	19	23	0	25	21	33	10.9	3.9	0.21	South America
08/22/2025	2100	Ra-Shalom	TYC	2128-00160-1	19	22	54	25	10	20	11.9	2.9	0.21	South America
08/22/2025	2100	Ra-Shalom	TYC	2128-00741-1	19	22	43	24	32	3	10.7	4.1	0.21	Australia
08/22/2025	2100	Ra-Shalom	TYC	2124-00186-1	19	22	27	23	55	25	11.1	3.7	0.21	Japan
08/23/2025	2100	Ra-Shalom	HIP	95165	19	21	39	21	13	47	9.3	5.5	0.21	South America
08/25/2025	2100	Ra-Shalom	UCAC4	546-093063	19	21	6	19	8	27	11.1	3.8	0.21	Europe
08/25/2025	2100	Ra-Shalom	HIP	95111	19	20	54	18	10	6	8.7	6.1	0.22	Australia , Japan
08/26/2025	2100	Ra-Shalom	TYC	1600-00649-1	19	20	36	16	41	1	11.3	3.6	0.22	North America
08/26/2025	2100	Ra-Shalom	J	192025.72+152948.0	19	20	26	15	29	48	12.8	2.2	0.34	Europe
08/27/2025	2100	Ra-Shalom	TYC	1054-00045-1	19	20	21	14	57	57	12.2	2.8	0.22	North America
08/27/2025	2100	Ra-Shalom	UCAC4	519-096567	19	20	12	13	40	22	11.5	3.5	0.22	Europe
08/29/2025	2100	Ra-Shalom	UCAC4	509-100766	19	20	2	11	36	11	12.2	2.8	0.23	South America
08/29/2025	2100	Ra-Shalom	UCAC4	507-101542	19	20	1	11	16	10	11.6	3.4	0.23	North America
09/01/2025	2100	Ra-Shalom	TYC	0472-00298-1	19	20	19	5	26	29	11.4	3.8	0.24	Australia
09/01/2025	2100	Ra-Shalom	UCAC4	480-096636	19	20	13	5	58	2	13.4	2.0	0.24	Australia
09/01/2025	16	Psyche	UCAC4	548-011759	4	56	53	19	26	5	12.8	0.2	12.33	Europe
09/02/2025	2100	Ra-Shalom	UCAC4	473-095173	19	20	27	4	27	50	12.4	2.9	0.25	Australia
09/02/2025	2100	Ra-Shalom	UCAC4	472-092610	19	20	28	4	20	27	12.1	3.2	0.25	Australia , Japan
09/03/2025	7341	1991 VK	UCAC4	328-103898	17	21	58	-24	29	16	12.3	9.8	0.15	Australia
09/04/2025	2100	Ra-Shalom	TYC	0468-03118-1	19	20	54	2	18	12	8.1	7.2	0.25	South America
09/04/2025	2100	Ra-Shalom	TYC	0464-03280-1	19	21	15	1	11	18	12.6	2.8	0.26	South America
09/05/2025	2100	Ra-Shalom	UCAC4	455-092068	19	21	17	0	57	25	12.3	3.1	0.26	South America
09/05/2025	162173	Ryugu	HIP	84481	17	16	16	-15	13	25	5.7	15.9	0.12	New Zealand
09/05/2025	2100	Ra-Shalom	TYC	0464-01563-1	19	21	30	0	19	18	11.0	4.4	0.26	Australia , Japan
09/05/2025	2100	Ra-Shalom	UCAC4	452-095686	19	21	31	0	16	59	11.2	4.2	0.27	Australia , Japan
09/05/2025	3752	Camillo	UCAC4	543-066574	17	48	47	18	34	51	13.2	5.5	0.08	Europe
09/06/2025	2100	Ra-Shalom	UCAC4	444-103843	19	22	9	-1	17	32	10.9	4.6	0.27	North America
09/06/2025	2100	Ra-Shalom	UCAC4	447-106273	19	21	55	0	42	40	10.8	4.7	0.27	Australia
09/06/2025	2100	Ra-Shalom	UCAC4	447-106271	19	21	55	0	42	2	8.9	6.6	0.27	Australia
09/06/2025	2100	Ra-Shalom	UCAC4	449-106138	19	21	45	0	18	18	13.3	2.3	0.26	South America
09/07/2025	2100	Ra-Shalom	UCAC4	441-101044	19	22	26	-1	55	17	13.1	2.5	0.27	Australia
09/08/2025	2100	Ra-Shalom	UCAC4	437-093991	19	22	49	-2	46	6	12.5	3.1	0.27	North America
09/09/2025	2100	Ra-Shalom	UCAC4	428-103313	19	23	50	-4	31	43	12.3	3.4	0.28	Europe
09/09/2025	2100	Ra-Shalom	UCAC4	428-103320	19	23	51	-4	35	39	12.1	3.6	0.28	Europe
09/09/2025	2100	Ra-Shalom	UCAC4	427-104070	19	23	52	-4	36	5	13.4	2.4	0.28	Europe
09/09/2025	2100	Ra-Shalom	UCAC4	427-104073	19	23	53	-4	38	5	11.9	3.8	0.28	Europe
09/09/2025	2100	Ra-Shalom	UCAC4	427-104076	19	23	54	-4	38	41	12.3	3.4	0.28	Europe
09/10/2025	2100	Ra-Shalom	UCAC4	423-118703	19	24	32	-5	35	15	13.6	2.2	0.29	Europe
09/12/2025	2100	Ra-Shalom	UCAC4	416-129669	19	25	30	-6	54	22	12.6	3.3	0.3	North America
09/14/2025	2100	Ra-Shalom	UCAC4	407-118814	19	27	8	-8	44	3	12.5	3.5	0.31	North America
09/14/2025	2100	Ra-Shalom	UCAC4	404-114330	19	27	44	-9	19	14	13.3	2.8	0.31	Europe
09/14/2025	2100	Ra-Shalom	TYC	5726-01315-1	19	27	49	-9	23	36	11.1	4.9	0.31	South America
09/15/2025	2100	Ra-Shalom	UCAC4	400-119416	19	28	37	-10	7	39	13.6	2.5	0.32	Europe
09/16/2025	2100	Ra-Shalom	UCAC4	397-114913	19	29	18	-10	42	32	11.9	4.1	0.32	Australia
09/18/2025	2100	Ra-Shalom	UCAC4	391-117758	19	30	50	-11	53	28	13.3	2.9	0.33	North America
09/18/2025	162173	Ryugu	UCAC4	372-096295	17	41	48	-15	46	40	12.2	9.5	0.06	Australia
09/19/2025	16	Psyche	UCAC4	548-013453	5	14	18	19	28	46	13.6	0.1	18.6	North America
09/19/2025	2100	Ra-Shalom	TYC	5731-01205-1	19	32	8	-12	46	31	11.7	4.5	0.33	Japan
09/19/2025	3200	Phaethon	UCAC4	660-021020	4	7	39	41	59	11	13.1	5.3	0.51	Japan
09/24/2025	3200	Phaethon	UCAC4	662-020882	4	3	16	42	23	20	12.5	5.8	0.44	Europe
09/24/2025	2100	Ra-Shalom	UCAC4	371-171870	19	37	58	-15	56	4	12.8	3.8	0.35	Australia
09/24/2025	3752	Camillo	UCAC4	486-075065	18	5	24	7	1	24	12.0	6.8	0.08	Europe
09/24/2025	162173	Ryugu	UCAC4	371-110398	17	55	23	-15	58	27	11.7	10.1	0.06	Europe
09/24/2025	2100	Ra-Shalom	UCAC4	370-174945	19	38	28	-16	9	44	10.8	5.8	0.37	Europe
09/26/2025	2100	Ra-Shalom	UCAC4	366-173120	19	39	60	-16	48	33	12.4	4.2	0.36	North America
09/27/2025	16	Psyche	UCAC4	548-014208	5	20	19	19	24	48	13.3	0.1	24.77	North America
09/28/2025	162173	Ryugu	UCAC4	370-120933	18	2	37	-16	2	52	11.7	10.1	0.07	North America

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