RECON: TNO occultation with 342842

Event between (342842) 08YB3 and star GA1220:07406699 with event index number of 2203472

Geocentric closest approach at 2024/10/06 02:02:12 UTC

J2000 position of star is 19:42:24.0 +33:21:00
Equinox of date position of star is 19:43:19.2 +33:24:30
Stellar brightness G=13.6, use SENSEUP=64 with the MallinCam and and exposure time of 1 seconds with the QHY174 camera.
Star is 86 degrees from the moon. Moon is 10% illuminated.
Apparent brightness V=21.7

[RECON map]
Object is 15.5 AU from the Sun and 15.2 AU from the Earth.
Apparent velocity is 30.8 km/sec on the sky relative to the star, or, 10.0 arcsec/hr.
The 1-sigma error in the time of the event is 50 seconds.
The 1-sigma cross-track error in the shadow position is 638 km.
The sky-plane scale is 11053.8 km/arcsec.

The object has an absolute magnitude Hv=9.5
Diameter=82.8 km assuming a 5% albedo -- 2.5 sec chord
Diameter=33.8 km assuming a 30% albedo -- 1.0 sec chord
Dynamical classification is CENTAURR
 
 
 
 
 
 

Star training set for 342842, (2024/10/06 02:04UT)
Object            RA         Dec     mag  sep  mel
Vega           18:37:46.6 +38:48:28  0.0 14.27  78
37Gam Cyg      20:23:07.1 +40:20:14  2.2 10.54  96
PPM 083318     19:40:40.8 +34:02:14  6.2  0.84  86
PPM 083374     19:42:35.6 +33:08:33  7.1  0.31  86
342842         19:43:20.6 +33:24:36 13.6        86
Positions are for equinox of date

This table contains the target star visibility for the RECON network. The observing range has been set to a maximum of 5.0 sigma about the mid-time.
The median site spacing is 0.0 km RECON observability=0.1 and success probability=0.0%

Site	Site mid-time (UT)	Sun alt (deg)	Sky	Moon	Star alt (deg)	Star az (deg)	Target	Observing Time (UT)	X-track (km)
Victoria	02:01:23	-3.9	CT	Up	71.8	141.6	Up	01:56:43 - 02:06:02	-982
Chiloquin	02:01:44	-4.7	CT	Up	76.9	131.0	Up	01:57:04 - 02:06:23	-1112
Klamath Falls	02:01:45	-4.7	CT	Up	77.2	130.1	Up	01:57:05 - 02:06:24	-1120
Sisters	02:01:38	-5.0	CT	Up	75.9	136.8	Up	01:56:58 - 02:06:17	-1128
Oregon Observatory	02:01:39	-5.0	CT	Up	76.2	136.1	Up	01:56:59 - 02:06:18	-1140
Bend	02:01:38	-5.1	CT	Up	76.2	136.9	Up	01:56:59 - 02:06:18	-1149
The Dalles	02:01:33	-5.3	CT	Up	75.1	141.1	Up	01:56:53 - 02:06:12	-1153
Fall River/Burney	02:01:49	-5.0	CT	Up	78.2	126.9	Up	01:57:09 - 02:06:28	-1157
Maupin	02:01:34	-5.3	CT	Up	75.4	140.4	Up	01:56:55 - 02:06:14	-1163
Kamloops	02:01:15	-5.9	CT	Up	71.1	152.2	Up	01:56:35 - 02:05:54	-1196
Ellensburg	02:01:28	-5.7	CT	Up	74.2	145.9	Up	01:56:48 - 02:06:07	-1196
Yakima	02:01:29	-5.7	CT	Up	74.5	145.0	Up	01:56:50 - 02:06:09	-1196
Greenville	02:01:52	-5.3	CT	Up	79.0	124.6	Up	01:57:13 - 02:06:32	-1200
Quincy	02:01:53	-5.3	CT	Up	79.1	123.8	Up	01:57:13 - 02:06:32	-1201
Gimple	02:01:52	-5.4	CT	Up	79.0	124.9	Up	01:57:13 - 02:06:32	-1207
Toppenish/White Swan	02:01:30	-5.8	CT	Up	74.8	145.0	Up	01:56:50 - 02:06:09	-1210
Wenatchee	02:01:26	-5.9	CT	Up	73.9	147.2	Up	01:56:47 - 02:06:06	-1211
Manson/Chelan	02:01:24	-6.0	NT	Up	73.6	148.5	Up	01:56:45 - 02:06:04	-1221
Peachland	02:01:18	-6.3	NT	Up	72.1	152.5	Up	01:56:38 - 02:05:57	-1241
Portola	02:01:53	-5.7	CT	Up	79.5	124.6	Up	01:57:14 - 02:06:33	-1242
Brewster	02:01:23	-6.3	NT	Up	73.5	149.9	Up	01:56:44 - 02:06:03	-1247
Summerland	02:01:19	-6.4	NT	Up	72.2	152.5	Up	01:56:39 - 02:05:58	-1249
Cedarville	02:01:47	-5.9	CT	Up	78.6	132.4	Up	01:57:07 - 02:06:26	-1255
Penticton	02:01:19	-6.4	NT	Up	72.3	152.7	Up	01:56:39 - 02:05:58	-1257
Oliver	02:01:20	-6.4	NT	Up	72.6	152.2	Up	01:56:41 - 02:06:00	-1259
Okanogan	02:01:23	-6.4	NT	Up	73.3	150.9	Up	01:56:43 - 02:06:02	-1261
Kelowna	02:01:18	-6.5	NT	Up	72.1	153.4	Up	01:56:38 - 02:05:57	-1262
Anarchist Mountain Observatory	02:01:20	-6.6	NT	Up	72.8	152.5	Up	01:56:41 - 02:06:00	-1273
Reno	02:01:54	-6.1	NT	Up	80.0	125.4	Up	01:57:14 - 02:06:33	-1299
Carson City	02:01:55	-6.2	NT	Up	80.3	123.8	Up	01:57:16 - 02:06:35	-1304
Gardnerville	02:01:56	-6.2	NT	Up	80.4	122.8	Up	01:57:17 - 02:06:36	-1310
PNWRO	02:01:31	-6.9	NT	Up	75.6	148.7	Up	01:56:51 - 02:06:10	-1327
Yerington	02:01:56	-6.6	NT	Up	80.8	124.9	Up	01:57:16 - 02:06:35	-1360
Lee Vining	02:01:59	-6.7	NT	Up	81.4	119.6	Up	01:57:20 - 02:06:39	-1372
Hawthorne	02:01:57	-7.1	NT	Up	81.4	124.4	Up	01:57:18 - 02:06:37	-1410
Bishop	02:02:01	-7.2	NT	Up	82.2	118.4	Up	01:57:22 - 02:06:41	-1442
Wildwood	02:02:13	-7.0	NT	Up	83.0	93.7	Up	01:57:33 - 02:06:52	-1458
Beatty	02:02:03	-8.5	NT	Up	83.5	121.3	Up	01:57:23 - 02:06:42	-1591
Idyllwild	02:02:14	-8.6	NT	Up	84.6	92.2	Up	01:57:34 - 02:06:53	-1634
Calipatria	02:02:15	-9.6	NT	Up	85.5	85.7	Up	01:57:35 - 02:06:54	-1752
Laughlin/Bullhead City	02:02:08	-10.3	NT	Up	85.9	115.3	Up	01:57:29 - 02:06:48	-1809
Yuma	02:02:17	-10.3	NT	Up	86.2	78.8	Up	01:57:37 - 02:06:56	-1841
Lake Havasu City	02:02:10	-10.6	NT	Up	86.4	107.2	Up	01:57:31 - 02:06:50	-1842
Patrick	02:02:06	-10.9	NT	Up	86.3	122.9	Up	01:57:26 - 02:06:45	-1869
George/Scottsdale	02:02:12	-12.6	AT	Up	88.6	104.3	Up	01:57:32 - 02:06:51	-2080
Sleaford	02:01:05	-14.7	AT	Down	71.0	190.3	Up	01:56:26 - 02:05:45	-2167
CU-SBO	02:01:46	-17.3	AT	Down	82.3	211.6	Up	01:57:07 - 02:06:26	-2520
Dunrhomin	02:01:45	-17.3	AT	Down	82.1	211.2	Up	01:57:06 - 02:06:25	-2522
Nikitin	02:01:46	-17.3	AT	Down	82.2	211.7	Up	01:57:06 - 02:06:25	-2525

Azimuth is measured in degrees eastward from north. North is at an azimuth of 0, due East is at an azimuth of 90 degrees, due South is 180, and due West is 270.

Do not use the listing below for the RECON CPC 1100 telescopes. This is provided for other non-team facilities.

Star training set for 342842, (2024/10/06 02:04UT)
Object            RA         Dec     mag  sep  mel
Vega           18:36:56.7 +38:47:07  0.0 14.27  78
37Gam Cyg      20:22:13.7 +40:15:24  2.2 10.54  96
PPM 083318     19:39:44.9 +33:58:44  6.2  0.84  86
PPM 083374     19:41:38.9 +33:04:59  7.1  0.31  86
342842         19:42:24.0 +33:21:00 13.6        86
Positions are for J2000

Event circumstances last updated at 2024/03/02 05:58:52 UT

RECON