RECON: TNO occultation with 15875

Event between (15875) 96TP66 and star GA1140:02704364 with event index number of 1882853

Geocentric closest approach at 2028/05/05 04:33:31 UTC

J2000 position of star is 07:06:45.4 +25:23:39
Equinox of date position of star is 07:08:15.4 +25:21:17
Stellar brightness G=12.6, use SENSEUP=16 with the MallinCam and and exposure time of 250 milli-seconds with the QHY174 camera.
Star is 72 degrees from the moon. Moon is 83% illuminated.
Apparent brightness V=22.7

[RECON map]
Object is 32.2 AU from the Sun and 32.7 AU from the Earth.
Apparent velocity is 19.9 km/sec on the sky relative to the star, or, 3.0 arcsec/hr.
The 1-sigma error in the time of the event is 526 seconds.
The 1-sigma cross-track error in the shadow position is 2652 km.
The sky-plane scale is 23726.4 km/arcsec.

The object has an absolute magnitude Hv=7.4
Diameter=204.2 km assuming a 5% albedo -- 10.2 sec chord
Diameter=83.4 km assuming a 30% albedo -- 4.2 sec chord
Dynamical classification is 3:2E
 
 
 
 
 
 

Star training set for 15875, (2028/05/05 04:34UT)
Object            RA         Dec     mag  sep  mel
Pollux         07:47:03.1 +27:57:19  1.1  9.00  64
42Ome Gem      07:04:08.3 +24:10:21  5.2  1.54  72
PPM 097118     07:11:19.7 +25:40:47  7.6  0.72  71
PPM 097024     07:07:50.4 +25:27:26  9.1  0.18  72
15875          07:08:29.8 +25:20:54 12.6        71
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 1.7 sigma about the mid-time.
The median site spacing is 9.3 km RECON observability=0.5 and success probability=11.5%

Site	Site mid-time (UT)	Sun alt (deg)	Sky	Moon	Star alt (deg)	Star az (deg)	Target	Observing Time (UT)	X-track (km)
Sleaford	04:35:57	-14.7	AT	Up	25.8	278.9	Low	04:20:57 - 04:50:57	1937
Kamloops	04:35:53	-9.7	NT	Up	34.7	268.7	Up	04:20:53 - 04:50:53	1395
Kelowna	04:35:59	-10.6	NT	Up	34.1	270.0	Up	04:20:59 - 04:50:59	1375
Peachland	04:35:59	-10.6	NT	Up	34.3	269.9	Up	04:20:59 - 04:50:59	1358
Summerland	04:35:59	-10.7	NT	Up	34.2	270.0	Up	04:20:59 - 04:50:59	1352
Penticton	04:35:59	-10.8	NT	Up	34.2	270.2	Up	04:20:59 - 04:50:59	1352
Oliver	04:36:01	-11.1	NT	Up	34.2	270.4	Up	04:21:01 - 04:51:01	1330
Anarchist Mountain Observatory	04:36:03	-11.3	NT	Up	34.0	270.7	Up	04:21:03 - 04:51:03	1326
Dunrhomin	04:36:53	-24.6	Dark	Up	22.7	284.8	Low	04:21:53 - 04:51:53	1288
Okanogan	04:36:05	-11.6	NT	Up	34.2	271.0	Up	04:21:05 - 04:51:05	1278
Nikitin	04:36:54	-24.8	Dark	Up	22.6	284.8	Low	04:21:54 - 04:51:54	1276
CU-SBO	04:36:54	-24.8	Dark	Up	22.7	284.8	Low	04:21:54 - 04:51:54	1268
Brewster	04:36:06	-11.7	NT	Up	34.3	271.0	Up	04:21:06 - 04:51:06	1253
Manson/Chelan	04:36:07	-11.6	NT	Up	34.5	270.9	Up	04:21:07 - 04:51:07	1227
Wenatchee	04:36:09	-11.9	NT	Up	34.6	271.1	Up	04:21:09 - 04:51:09	1190
Ellensburg	04:36:10	-12.0	AT	Up	34.8	271.2	Up	04:21:10 - 04:51:10	1155
Victoria	04:35:59	-9.5	NT	Up	36.7	267.9	Up	04:20:59 - 04:50:59	1155
PNWRO	04:36:17	-13.5	AT	Up	33.6	273.1	Up	04:21:17 - 04:51:17	1150
Yakima	04:36:12	-12.3	AT	Up	34.8	271.5	Up	04:21:12 - 04:51:12	1128
Toppenish/White Swan	04:36:13	-12.5	AT	Up	34.6	271.8	Up	04:21:13 - 04:51:13	1120
The Dalles	04:36:15	-12.6	AT	Up	35.2	271.7	Up	04:21:15 - 04:51:15	1038
Maupin	04:36:18	-12.9	AT	Up	35.1	272.1	Up	04:21:18 - 04:51:18	1014
Sisters	04:36:21	-13.2	AT	Up	35.4	272.4	Up	04:21:21 - 04:51:21	935
Bend	04:36:22	-13.5	AT	Up	35.2	272.8	Up	04:21:22 - 04:51:22	928
Oregon Observatory	04:36:23	-13.6	AT	Up	35.3	272.8	Up	04:21:23 - 04:51:23	911
Chiloquin	04:36:28	-14.2	AT	Up	35.5	273.5	Up	04:21:28 - 04:51:28	802
Cedarville	04:36:35	-15.8	AT	Up	34.1	275.3	Up	04:21:35 - 04:51:35	793
Klamath Falls	04:36:29	-14.4	AT	Up	35.4	273.8	Up	04:21:29 - 04:51:29	780
Fall River/Burney	04:36:35	-15.4	AT	Up	35.0	274.9	Up	04:21:35 - 04:51:35	709
Gimple	04:36:39	-16.3	AT	Up	34.5	275.8	Up	04:21:39 - 04:51:39	663
Reno	04:36:44	-17.3	AT	Up	33.6	276.8	Up	04:21:44 - 04:51:44	662
Greenville	04:36:39	-16.3	AT	Up	34.6	275.8	Up	04:21:39 - 04:51:39	660
Portola	04:36:42	-16.8	AT	Up	34.1	276.3	Up	04:21:42 - 04:51:42	655
Yerington	04:36:47	-18.1	Dark	Up	33.0	277.6	Up	04:21:47 - 04:51:47	647
Quincy	04:36:40	-16.4	AT	Up	34.5	275.9	Up	04:21:40 - 04:51:40	645
Carson City	04:36:45	-17.6	AT	Up	33.5	277.1	Up	04:21:45 - 04:51:45	636
Hawthorne	04:36:49	-18.7	Dark	Up	32.5	278.2	Up	04:21:49 - 04:51:49	634
Gardnerville	04:36:46	-17.7	AT	Up	33.5	277.3	Up	04:21:46 - 04:51:46	620
Patrick	04:37:08	-23.7	Dark	Up	28.2	282.5	Low	04:22:08 - 04:52:08	599
Beatty	04:36:58	-20.9	Dark	Up	30.8	280.2	Up	04:21:58 - 04:51:58	589
Lee Vining	04:36:51	-18.8	Dark	Up	32.8	278.3	Up	04:21:51 - 04:51:51	572
Bishop	04:36:54	-19.6	Dark	Up	32.2	279.0	Up	04:21:54 - 04:51:54	556
George/Scottsdale	04:37:16	-26.0	Dark	Up	26.1	284.3	Low	04:22:16 - 04:52:16	556
Laughlin/Bullhead City	04:37:08	-23.4	Dark	Up	28.7	282.3	Low	04:22:08 - 04:52:08	550
Lake Havasu City	04:37:11	-24.0	Dark	Up	28.3	282.7	Low	04:22:11 - 04:52:11	509
Yuma	04:37:17	-25.1	Dark	Up	28.2	283.6	Low	04:22:17 - 04:52:17	356
Calipatria	04:37:15	-24.2	Dark	Up	29.0	282.9	Low	04:22:15 - 04:52:15	351
Idyllwild	04:37:11	-23.0	Dark	Up	30.1	282.1	Up	04:22:11 - 04:52:11	348
Wildwood	04:37:07	-21.6	Dark	Up	31.7	281.0	Up	04:22:07 - 04:52:07	294

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 15875, (2028/05/05 04:34UT)
Object            RA         Dec     mag  sep  mel
Pollux         07:45:17.9 +28:01:33  1.1  9.00  64
42Ome Gem      07:02:24.8 +24:12:55  5.2  1.54  72
PPM 097118     07:09:35.2 +25:43:39  7.6  0.72  71
PPM 097024     07:06:05.9 +25:30:09  9.1  0.18  72
15875          07:06:45.4 +25:23:39 12.6        72
Positions are for J2000

Event circumstances last updated at 2024/06/09 03:20:22 UT

RECON