RECON: TNO occultation with 14UU228

Event between 14UU228 and star GA1080:00361637 with event index number of 1976094

Geocentric closest approach at 2024/03/08 02:39:08 UTC

J2000 position of star is 03:22:03.1 +19:47:29
Equinox of date position of star is 03:23:26.3 +19:52:36
Stellar brightness G=13.1, use SENSEUP=32 with the MallinCam and and exposure time of 500 milli-seconds with the QHY174 camera.
Star is 97 degrees from the moon. Moon is 8% illuminated.
Apparent brightness V=24.4

[RECON map]
Object is 27.9 AU from the Sun and 28.3 AU from the Earth.
Apparent velocity is 18.5 km/sec on the sky relative to the star, or, 3.2 arcsec/hr.
The 1-sigma error in the time of the event is 382 seconds.
The 1-sigma cross-track error in the shadow position is 2584 km.
The sky-plane scale is 20496.5 km/arcsec.

The object has an absolute magnitude Hv=9.7
Diameter=68.6 km assuming a 5% albedo -- 3.7 sec chord
Diameter=28.0 km assuming a 30% albedo -- 1.5 sec chord
Dynamical classification is 3:2E
 
 
 
 
 
 

Star training set for 14UU228, (2024/03/08 02:39UT)
Object            RA         Dec     mag  sep  mel
Aldebaran      04:37:18.7 +16:33:22  0.8 17.84 113
44Zet Per      03:55:39.5 +31:57:12  2.8 14.07 108
63Tau2Ari      03:24:09.0 +20:49:37  6.2  0.96  98
PPM 119023     03:22:24.6 +19:33:42  8.2  0.40  97
PPM 092446     03:23:58.5 +20:13:26 10.4  0.37  98
14UU228        03:23:26.5 +19:52:36 13.1        98
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 2.4 sigma about the mid-time.
The median site spacing is **** km RECON observability=0.1 and success probability=22.6%

Site	Site mid-time (UT)	Sun alt (deg)	Sky	Moon	Star alt (deg)	Star az (deg)	Target	Observing Time (UT)	X-track (km)
Sleaford	02:42:29	-17.1	AT	Down	39.4	250.0	Up	02:27:29 - 02:57:29	727
Kamloops	02:41:50	-8.4	NT	Down	48.2	235.8	Up	02:26:50 - 02:56:50	506
Kelowna	02:41:55	-9.0	NT	Down	48.1	237.6	Up	02:26:55 - 02:56:55	428
Peachland	02:41:54	-8.8	NT	Down	48.3	237.4	Up	02:26:54 - 02:56:54	416
Summerland	02:41:54	-8.9	NT	Down	48.4	237.6	Up	02:26:54 - 02:56:54	402
Penticton	02:41:55	-8.9	NT	Down	48.3	237.8	Up	02:26:55 - 02:56:55	396
Oliver	02:41:55	-9.0	NT	Down	48.5	238.1	Up	02:26:55 - 02:56:55	361
Anarchist Mountain Observatory	02:41:56	-9.1	NT	Down	48.5	238.5	Up	02:26:56 - 02:56:56	344
Victoria	02:41:43	-6.4	NT	Down	51.0	234.2	Up	02:26:43 - 02:56:43	287
Okanogan	02:41:57	-9.0	NT	Down	49.0	238.9	Up	02:26:57 - 02:56:57	279
Brewster	02:41:57	-8.9	NT	Down	49.2	238.9	Up	02:26:57 - 02:56:57	251
Manson/Chelan	02:41:56	-8.6	NT	Down	49.5	238.7	Up	02:26:56 - 02:56:56	229
Wenatchee	02:41:56	-8.5	NT	Down	49.9	239.0	Up	02:26:56 - 02:56:56	181
Ellensburg	02:41:56	-8.4	NT	Down	50.2	239.2	Up	02:26:56 - 02:56:56	139
Yakima	02:41:56	-8.4	NT	Down	50.4	239.6	Up	02:26:56 - 02:56:56	97
Toppenish/White Swan	02:41:57	-8.5	NT	Down	50.5	240.0	Up	02:26:57 - 02:56:57	76
PNWRO	02:42:03	-9.6	NT	Down	49.7	242.1	Up	02:27:03 - 02:57:03	43
The Dalles	02:41:55	-8.0	NT	Down	51.3	239.9	Up	02:26:55 - 02:56:55	-6
Maupin	02:41:56	-8.1	NT	Down	51.5	240.5	Up	02:26:56 - 02:56:56	-48
Sisters	02:41:56	-7.8	NT	Down	52.2	240.9	Up	02:26:56 - 02:56:56	-140
Bend	02:41:57	-8.0	NT	Down	52.1	241.5	Up	02:26:57 - 02:56:57	-164
Oregon Observatory	02:41:57	-7.9	NT	Down	52.3	241.5	Up	02:26:57 - 02:56:57	-182
Chiloquin	02:41:57	-7.6	NT	Down	53.2	242.6	Up	02:26:57 - 02:56:57	-320
Klamath Falls	02:41:58	-7.6	NT	Down	53.3	243.1	Up	02:26:58 - 02:56:58	-355
Cedarville	02:42:05	-8.9	NT	Down	52.5	245.7	Up	02:27:05 - 02:57:05	-424
Dunrhomin	02:42:59	-20.5	Dark	Down	41.8	260.6	Up	02:27:59 - 02:57:59	-446
Nikitin	02:43:00	-20.5	Dark	Down	41.9	260.8	Up	02:28:00 - 02:58:00	-466
CU-SBO	02:43:00	-20.4	Dark	Down	42.0	260.8	Up	02:28:00 - 02:58:00	-473
Fall River/Burney	02:42:00	-8.0	NT	Down	53.6	245.0	Up	02:27:00 - 02:57:00	-479
Gimple	02:42:04	-8.4	NT	Down	53.5	246.7	Up	02:27:04 - 02:57:04	-573
Greenville	02:42:03	-8.3	NT	Down	53.6	246.6	Up	02:27:03 - 02:57:03	-573
Quincy	02:42:04	-8.3	NT	Down	53.7	246.8	Up	02:27:04 - 02:57:04	-595
Portola	02:42:06	-8.7	NT	Down	53.4	247.5	Up	02:27:06 - 02:57:06	-606
Reno	02:42:08	-9.2	NT	Down	53.0	248.5	Up	02:27:08 - 02:57:08	-633
Carson City	02:42:09	-9.2	NT	Down	53.1	249.0	Up	02:27:09 - 02:57:09	-671
Yerington	02:42:12	-9.7	NT	Down	52.7	249.9	Up	02:27:12 - 02:57:12	-689
Gardnerville	02:42:10	-9.3	NT	Down	53.2	249.3	Up	02:27:10 - 02:57:10	-697
Hawthorne	02:42:14	-10.2	NT	Down	52.5	251.0	Up	02:27:14 - 02:57:14	-737
Lee Vining	02:42:13	-9.8	NT	Down	53.0	251.2	Up	02:27:13 - 02:57:13	-799
Bishop	02:42:16	-10.4	NT	Down	52.7	252.6	Up	02:27:16 - 02:57:16	-860
Beatty	02:42:24	-11.8	NT	Down	51.5	254.7	Up	02:27:24 - 02:57:24	-902
Patrick	02:42:37	-14.2	AT	Down	49.5	258.8	Up	02:27:37 - 02:57:37	-1043
Laughlin/Bullhead City	02:42:35	-13.7	AT	Down	50.2	258.6	Up	02:27:35 - 02:57:35	-1075
Lake Havasu City	02:42:36	-13.9	AT	Down	50.1	259.6	Up	02:27:36 - 02:57:36	-1146
George/Scottsdale	02:42:47	-16.1	AT	Down	48.1	262.2	Up	02:27:47 - 02:57:47	-1210
Wildwood	02:42:19	-10.4	NT	Down	53.7	256.7	Up	02:27:19 - 02:57:19	-1214
Idyllwild	02:42:27	-12.0	NT	Down	52.2	258.7	Up	02:27:27 - 02:57:27	-1243
Calipatria	02:42:33	-13.0	AT	Down	51.3	260.3	Up	02:27:33 - 02:57:33	-1302
Yuma	02:42:37	-13.8	AT	Down	50.6	261.5	Up	02:27:37 - 02:57:37	-1343

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 14UU228, (2024/03/08 02:39UT)
Object            RA         Dec     mag  sep  mel
Aldebaran      04:35:55.3 +16:30:29  0.8 17.84 113
44Zet Per      03:54:07.9 +31:53:01  2.8 14.07 108
63Tau2Ari      03:22:45.2 +20:44:31  6.2  0.96  98
PPM 119023     03:21:01.4 +19:28:33  8.2  0.40  97
PPM 092446     03:22:35.0 +20:08:20 10.4  0.37  98
14UU228        03:22:03.1 +19:47:29 13.1        97
Positions are for J2000

Event circumstances last updated at 2024/02/12 04:18:34 UT

RECON