RECON: TNO occultation with 612048

Event between (612048) 96TS66 and star GA1140:01560100 with event index number of 2804138

Geocentric closest approach at 2028/12/25 01:49:46 UTC

J2000 position of star is 05:46:44.6 +25:50:11
Equinox of date position of star is 05:48:10.1 +25:50:36
Stellar brightness G=15.2, use SENSEUP=128 with the MallinCam and and exposure time of 2 seconds with the QHY174 camera.
Star is 70 degrees from the moon. Moon is 61% illuminated.
Apparent brightness V=22.0

[RECON map]
Object is 38.6 AU from the Sun and 37.6 AU from the Earth.
Apparent velocity is 25.1 km/sec on the sky relative to the star, or, 3.3 arcsec/hr.
The 1-sigma error in the time of the event is 281 seconds.
The 1-sigma cross-track error in the shadow position is 1564 km.
The sky-plane scale is 27290.5 km/arcsec.

The object has an absolute magnitude Hv=6.2
Diameter=350.0 km assuming a 5% albedo -- 14.0 sec chord
Diameter=142.9 km assuming a 30% albedo -- 5.7 sec chord
Dynamical classification is 5:3EE
 
 
 
 
 
 

Star training set for 612048, (2028/12/25 01:47UT)
Object            RA         Dec     mag  sep  mel
Betelgeuse     05:56:44.5 +07:24:36  0.4 18.54  75
Alnath         05:28:07.6 +28:37:46  1.6  5.32  66
132 Tau        05:50:47.8 +24:34:28  4.9  1.37  71
PPM 094875     05:49:22.3 +25:34:36  8.0  0.33  71
PPM 094861     05:48:55.2 +25:51:17  8.7  0.09  70
612048         05:48:32.4 +25:50:42 15.2        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 3.2 sigma about the mid-time.
The median site spacing is 20.5 km RECON observability=0.5 and success probability=22.8%

Site	Site mid-time (UT)	Sun alt (deg)	Sky	Moon	Star alt (deg)	Star az (deg)	Target	Observing Time (UT)	X-track (km)
Kamloops	01:52:18	-16.5	AT	Up	22.8	76.6	Low	01:37:18 - 02:07:18	-648
Victoria	01:52:26	-13.9	AT	Up	20.4	73.7	Low	01:37:26 - 02:07:26	-688
Peachland	01:52:22	-16.6	AT	Up	23.0	76.6	Low	01:37:22 - 02:07:22	-725
Kelowna	01:52:21	-16.8	AT	Up	23.2	76.9	Low	01:37:21 - 02:07:21	-728
Summerland	01:52:22	-16.6	AT	Up	23.0	76.6	Low	01:37:22 - 02:07:22	-738
Penticton	01:52:22	-16.6	AT	Up	23.1	76.7	Low	01:37:22 - 02:07:22	-746
Oliver	01:52:23	-16.5	AT	Up	23.0	76.5	Low	01:37:23 - 02:07:23	-769
Anarchist Mountain Observatory	01:52:24	-16.6	AT	Up	23.1	76.6	Low	01:37:24 - 02:07:24	-786
Okanogan	01:52:26	-16.3	AT	Up	22.8	76.2	Low	01:37:26 - 02:07:26	-822
Brewster	01:52:27	-16.1	AT	Up	22.6	76.0	Low	01:37:27 - 02:07:27	-833
Manson/Chelan	01:52:28	-15.8	AT	Up	22.3	75.6	Low	01:37:28 - 02:07:28	-835
Wenatchee	01:52:30	-15.5	AT	Up	22.1	75.3	Low	01:37:30 - 02:07:30	-861
Ellensburg	01:52:31	-15.3	AT	Up	21.9	75.0	Low	01:37:31 - 02:07:31	-881
Yakima	01:52:33	-15.1	AT	Up	21.7	74.9	Low	01:37:33 - 02:07:33	-908
Toppenish/White Swan	01:52:33	-15.2	AT	Up	21.8	74.9	Low	01:37:33 - 02:07:33	-929
The Dalles	01:52:36	-14.4	AT	Up	21.1	74.1	Low	01:37:36 - 02:07:36	-955
Maupin	01:52:37	-14.4	AT	Up	21.0	74.0	Low	01:37:37 - 02:07:37	-988
Sleaford	01:52:06	-25.5	Dark	Up	31.9	87.9	Up	01:37:06 - 02:07:06	-991
PNWRO	01:52:34	-16.1	AT	Up	22.7	75.7	Low	01:37:34 - 02:07:34	-1005
Sisters	01:52:40	-13.8	AT	Up	20.5	73.4	Low	01:37:40 - 02:07:40	-1032
Bend	01:52:41	-13.9	AT	Up	20.6	73.5	Low	01:37:41 - 02:07:41	-1057
Oregon Observatory	01:52:42	-13.7	AT	Up	20.4	73.3	Low	01:37:42 - 02:07:42	-1065
Chiloquin	01:52:46	-13.0	AT	Up	19.8	72.6	Really Low	01:37:46 - 02:07:46	-1144
Klamath Falls	01:52:47	-12.9	AT	Up	19.7	72.6	Really Low	01:37:47 - 02:07:47	-1172
Fall River/Burney	01:52:51	-12.8	AT	Up	19.7	72.4	Really Low	01:37:51 - 02:07:51	-1273
Cedarville	01:52:49	-13.8	AT	Up	20.7	73.3	Low	01:37:49 - 02:07:49	-1281
Greenville	01:52:53	-12.8	AT	Up	19.7	72.3	Really Low	01:37:53 - 02:07:53	-1357
Gimple	01:52:53	-12.9	AT	Up	19.8	72.4	Really Low	01:37:53 - 02:07:53	-1360
Quincy	01:52:54	-12.8	AT	Up	19.7	72.3	Really Low	01:37:54 - 02:07:54	-1372
Portola	01:52:54	-13.1	AT	Up	20.0	72.5	Really Low	01:37:54 - 02:07:54	-1400
Reno	01:52:55	-13.5	AT	Up	20.4	72.8	Low	01:37:55 - 02:07:55	-1445
Carson City	01:52:55	-13.4	AT	Up	20.3	72.6	Low	01:37:55 - 02:07:55	-1473
Gardnerville	01:52:56	-13.3	AT	Up	20.2	72.6	Low	01:37:56 - 02:07:56	-1494
Yerington	01:52:56	-13.8	AT	Up	20.7	72.9	Low	01:37:56 - 02:07:56	-1512
Hawthorne	01:52:57	-14.0	AT	Up	21.0	73.0	Low	01:37:57 - 02:07:57	-1569
Lee Vining	01:52:59	-13.5	AT	Up	20.4	72.6	Low	01:37:59 - 02:07:59	-1594
Bishop	01:53:01	-13.8	AT	Up	20.8	72.8	Low	01:38:01 - 02:08:01	-1670
Beatty	01:53:01	-14.9	AT	Up	21.9	73.4	Low	01:38:01 - 02:08:01	-1771
Wildwood	01:53:10	-12.6	AT	Up	19.7	71.5	Really Low	01:38:10 - 02:08:10	-1929
Dunrhomin	01:52:42	-24.4	Dark	Up	31.4	81.3	Up	01:37:42 - 02:07:42	-1931
Nikitin	01:52:43	-24.4	Dark	Up	31.4	81.1	Up	01:37:43 - 02:07:43	-1946
CU-SBO	01:52:43	-24.3	Dark	Up	31.3	81.1	Up	01:37:43 - 02:07:43	-1948
Laughlin/Bullhead City	01:53:04	-16.1	AT	Up	23.1	73.8	Low	01:38:04 - 02:08:04	-2001
Patrick	01:53:04	-16.7	AT	Up	23.8	74.3	Low	01:38:04 - 02:08:04	-2008
Idyllwild	01:53:09	-13.9	AT	Up	21.0	72.3	Low	01:38:09 - 02:08:09	-2035
Lake Havasu City	01:53:06	-16.1	AT	Up	23.2	73.7	Low	01:38:06 - 02:08:06	-2067
Calipatria	01:53:10	-14.7	AT	Up	21.8	72.6	Low	01:38:10 - 02:08:10	-2135
Yuma	01:53:11	-15.3	AT	Up	22.4	72.8	Low	01:38:11 - 02:08:11	-2209
George/Scottsdale	01:53:06	-17.8	AT	Up	24.9	74.5	Low	01:38:06 - 02:08:06	-2233

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 612048, (2028/12/25 01:47UT)
Object            RA         Dec     mag  sep  mel
Betelgeuse     05:55:10.3 +07:24:26  0.4 18.54  75
Alnath         05:26:17.6 +28:36:23  1.6  5.32  66
132 Tau        05:49:00.9 +24:34:02  4.9  1.37  71
PPM 094875     05:47:34.7 +25:34:07  8.0  0.33  71
PPM 094861     05:47:07.3 +25:50:47  8.7  0.09  70
612048         05:46:44.6 +25:50:11 15.2        70
Positions are for J2000

Event circumstances last updated at 2022/12/26 05:03:05 UT

RECON