RECON: TNO occultation with 15788

Event between (15788) 93SB and star GA1140:01554173 with event index number of 1859188

Geocentric closest approach at 2028/04/09 02:59:36 UTC

J2000 position of star is 05:50:52.5 +25:19:40
Equinox of date position of star is 05:52:17.7 +25:19:57
Stellar brightness G=14.6, use SENSEUP=128 with the MallinCam and and exposure time of 2 seconds with the QHY174 camera.
Star is 108 degrees from the moon. Moon is 100% illuminated.
Apparent brightness V=22.6

[RECON map]
Object is 27.0 AU from the Sun and 27.3 AU from the Earth.
Apparent velocity is 17.0 km/sec on the sky relative to the star, or, 3.1 arcsec/hr.
The 1-sigma error in the time of the event is 513 seconds.
The 1-sigma cross-track error in the shadow position is 1250 km.
The sky-plane scale is 19835.6 km/arcsec.

The object has an absolute magnitude Hv=8.0
Diameter=154.9 km assuming a 5% albedo -- 9.1 sec chord
Diameter=63.2 km assuming a 30% albedo -- 3.7 sec chord
Dynamical classification is 3:2E
 
 
 
 
 
 

Star training set for 15788, (2028/04/09 03:09UT)
Object            RA         Dec     mag  sep  mel
Betelgeuse     05:56:42.2 +07:24:36  0.4 17.95 105
Alnath         05:28:04.9 +28:37:44  1.6  6.38 113
132 Tau        05:50:45.1 +24:34:27  4.9  0.87 108
PPM 094961     05:52:33.2 +26:03:35  8.0  0.73 108
PPM 094972     05:52:47.3 +25:14:03  9.6  0.11 108
15788          05:52:37.3 +25:20:00 14.6       107
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 1.8 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)
Sleaford	03:02:22	-11.0	NT	Up	44.1	254.1	Up	02:47:22 - 03:17:22	-258
Kamloops	03:01:44	-3.2	CT	Up	53.0	240.1	Up	02:46:44 - 03:16:44	-705
Kelowna	03:01:50	-4.0	CT	Up	52.9	242.1	Up	02:46:50 - 03:16:50	-761
Peachland	03:01:49	-3.8	CT	Up	53.1	241.9	Up	02:46:49 - 03:16:49	-777
Summerland	03:01:50	-3.9	CT	Up	53.1	242.2	Up	02:46:50 - 03:16:50	-789
Penticton	03:01:51	-4.0	CT	Up	53.1	242.4	Up	02:46:51 - 03:16:51	-793
Oliver	03:01:52	-4.1	CT	Up	53.3	242.8	Up	02:46:52 - 03:16:52	-826
Anarchist Mountain Observatory	03:01:53	-4.3	CT	Up	53.2	243.3	Up	02:46:53 - 03:16:53	-837
Okanogan	03:01:54	-4.3	CT	Up	53.6	243.8	Up	02:46:54 - 03:16:54	-902
Brewster	03:01:54	-4.3	CT	Up	53.9	243.9	Up	02:46:54 - 03:16:54	-932
Manson/Chelan	03:01:54	-4.1	CT	Up	54.2	243.7	Up	02:46:54 - 03:16:54	-959
Victoria	03:01:40	-1.8	CT	Up	55.8	238.9	Up	02:46:40 - 03:16:40	-966
Wenatchee	03:01:55	-4.1	CT	Up	54.5	244.1	Up	02:46:55 - 03:16:55	-1007
Ellensburg	03:01:55	-4.1	CT	Up	54.8	244.4	Up	02:46:55 - 03:16:55	-1051
Yakima	03:01:56	-4.2	CT	Up	55.0	244.9	Up	02:46:56 - 03:16:56	-1090
Toppenish/White Swan	03:01:57	-4.4	CT	Up	55.0	245.4	Up	02:46:57 - 03:16:57	-1107
PNWRO	03:02:04	-5.5	CT	Up	54.1	247.6	Up	02:47:04 - 03:17:04	-1109
The Dalles	03:01:57	-4.0	CT	Up	55.8	245.5	Up	02:46:57 - 03:16:57	-1199
Maupin	03:01:58	-4.2	CT	Up	55.9	246.2	Up	02:46:58 - 03:16:58	-1237
Dunrhomin	03:03:11	-17.1	AT	Up	45.4	266.5	Up	02:48:11 - 03:18:11	-1283
Nikitin	03:03:11	-17.2	AT	Up	45.5	266.7	Up	02:48:11 - 03:18:11	-1301
CU-SBO	03:03:11	-17.1	AT	Up	45.5	266.7	Up	02:48:11 - 03:18:11	-1309
Sisters	03:01:59	-4.1	CT	Up	56.6	246.9	Up	02:46:59 - 03:16:59	-1333
Bend	03:02:01	-4.4	CT	Up	56.5	247.5	Up	02:47:01 - 03:17:01	-1350
Oregon Observatory	03:02:01	-4.3	CT	Up	56.6	247.6	Up	02:47:01 - 03:17:01	-1370
Chiloquin	03:02:03	-4.4	CT	Up	57.4	249.0	Up	02:47:03 - 03:17:03	-1509
Klamath Falls	03:02:04	-4.5	CT	Up	57.5	249.6	Up	02:47:04 - 03:17:04	-1541
Cedarville	03:02:12	-5.9	CT	Up	56.5	252.3	Up	02:47:12 - 03:17:12	-1572
Fall River/Burney	03:02:09	-5.1	CT	Up	57.6	251.8	Up	02:47:09 - 03:17:09	-1649
Gimple	03:02:13	-5.8	CT	Up	57.4	253.7	Up	02:47:13 - 03:17:13	-1727
Greenville	03:02:13	-5.7	CT	Up	57.5	253.6	Up	02:47:13 - 03:17:13	-1729
Quincy	03:02:14	-5.8	CT	Up	57.6	253.9	Up	02:47:14 - 03:17:14	-1749
Portola	03:02:16	-6.1	NT	Up	57.2	254.6	Up	02:47:16 - 03:17:16	-1750
Reno	03:02:19	-6.7	NT	Up	56.8	255.6	Up	02:47:19 - 03:17:19	-1761
Carson City	03:02:20	-6.8	NT	Up	56.9	256.2	Up	02:47:20 - 03:17:20	-1796
Yerington	03:02:24	-7.4	NT	Up	56.4	257.0	Up	02:47:24 - 03:17:24	-1800
Gardnerville	03:02:21	-6.9	NT	Up	56.9	256.6	Up	02:47:21 - 03:17:21	-1819
Hawthorne	03:02:27	-7.9	NT	Up	56.1	258.2	Up	02:47:27 - 03:17:27	-1833
Lee Vining	03:02:27	-7.7	NT	Up	56.6	258.6	Up	02:47:27 - 03:17:27	-1902
Bishop	03:02:32	-8.4	NT	Up	56.1	260.1	Up	02:47:32 - 03:17:32	-1943
Beatty	03:02:40	-9.8	NT	Up	54.9	262.1	Up	02:47:40 - 03:17:40	-1946
Patrick	03:02:55	-12.6	AT	Up	52.7	266.2	Up	02:47:55 - 03:17:55	-2014
Laughlin/Bullhead City	03:02:53	-12.1	AT	Up	53.3	266.0	Up	02:47:53 - 03:17:53	-2059
Lake Havasu City	03:02:56	-12.5	AT	Up	53.1	267.1	Up	02:47:56 - 03:17:56	-2119
George/Scottsdale	03:03:08	-14.7	AT	Up	51.0	269.6	Up	02:48:08 - 03:18:08	-2123
Idyllwild	03:02:48	-10.8	NT	Up	55.1	266.6	Up	02:47:48 - 03:17:48	-2265
Wildwood	03:02:39	-9.2	NT	Up	56.7	264.9	Up	02:47:39 - 03:17:39	-2281
Calipatria	03:02:55	-12.0	NT	Up	54.1	268.2	Up	02:47:55 - 03:17:55	-2293
Yuma	03:03:00	-12.9	AT	Up	53.4	269.3	Up	02:48:00 - 03:18:00	-2311

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 15788, (2028/04/09 03:09UT)
Object            RA         Dec     mag  sep  mel
Betelgeuse     05:55:10.3 +07:24:26  0.4 17.95 105
Alnath         05:26:17.6 +28:36:23  1.6  6.38 113
132 Tau        05:49:00.9 +24:34:02  4.9  0.87 108
PPM 094961     05:50:47.8 +26:03:15  8.0  0.73 108
PPM 094972     05:51:02.5 +25:13:43  9.6  0.11 108
15788          05:50:52.5 +25:19:40 14.6       108
Positions are for J2000

Event circumstances last updated at 2022/12/26 04:35:01 UT

RECON