RECON: TNO occultation with 11QF99

Event between 11QF99 and star GA1040:01439290 with event index number of 2124026

Geocentric closest approach at 2024/11/15 11:13:38 UTC

J2000 position of star is 06:02:14.3 +15:13:55
Equinox of date position of star is 06:03:35.7 +15:13:49
Stellar brightness G=13.6, use SENSEUP=64 with the MallinCam and and exposure time of 1 seconds with the QHY174 camera.
Star is 44 degrees from the moon. Moon is 100% illuminated.
Apparent brightness V=22.2

[RECON map]
Object is 17.0 AU from the Sun and 16.2 AU from the Earth.
Apparent velocity is 17.0 km/sec on the sky relative to the star, or, 5.2 arcsec/hr.
The 1-sigma error in the time of the event is 139 seconds.
The 1-sigma cross-track error in the shadow position is 742 km.
The sky-plane scale is 11782.5 km/arcsec.

The object has an absolute magnitude Hv=9.8
Diameter=66.4 km assuming a 5% albedo -- 3.9 sec chord
Diameter=27.1 km assuming a 30% albedo -- 1.6 sec chord
Dynamical classification is CENTAURR
 
 
 
 
 
 

Star training set for 11QF99, (2024/11/15 11:14UT)
Object            RA         Dec     mag  sep  mel
Betelgeuse     05:56:31.2 +07:24:35  0.4  8.01  45
Alhena         06:39:08.9 +16:22:33  1.9  8.61  52
69 Ori         06:13:29.3 +16:07:21  4.7  2.53  46
PPM 121788     06:03:28.4 +15:12:17  8.2  0.05  44
11QF99         06:03:39.8 +15:13:48 13.6        45
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 34.0 km RECON observability=1.0 and success probability=53.3%

Site	Site mid-time (UT)	Sun alt (deg)	Sky	Moon	Star alt (deg)	Star az (deg)	Target	Observing Time (UT)	X-track (km)
Sleaford	11:11:13	-29.5	Dark	Up	47.6	219.4	Up	10:59:08 - 11:23:18	1830
Kamloops	11:12:06	-38.4	Dark	Up	53.2	199.8	Up	11:00:01 - 11:24:11	1804
Kelowna	11:12:03	-38.1	Dark	Up	53.8	201.6	Up	10:59:58 - 11:24:08	1720
Peachland	11:12:04	-38.3	Dark	Up	54.0	201.2	Up	10:59:59 - 11:24:09	1713
Summerland	11:12:04	-38.3	Dark	Up	54.1	201.4	Up	10:59:59 - 11:24:09	1698
Penticton	11:12:04	-38.3	Dark	Up	54.1	201.6	Up	10:59:59 - 11:24:09	1690
Oliver	11:12:03	-38.4	Dark	Up	54.4	201.8	Up	10:59:58 - 11:24:08	1658
Anarchist Mountain Observatory	11:12:03	-38.3	Dark	Up	54.6	202.2	Up	10:59:58 - 11:24:08	1640
Victoria	11:12:19	-41.0	Dark	Up	55.9	195.9	Up	11:00:14 - 11:24:24	1637
Okanogan	11:12:03	-38.6	Dark	Up	55.2	202.2	Up	10:59:58 - 11:24:08	1581
Brewster	11:12:04	-38.8	Dark	Up	55.5	202.0	Up	10:59:59 - 11:24:09	1557
Manson/Chelan	11:12:06	-39.1	Dark	Up	55.8	201.5	Up	11:00:01 - 11:24:11	1542
Wenatchee	11:12:07	-39.4	Dark	Up	56.3	201.5	Up	11:00:02 - 11:24:12	1498
Ellensburg	11:12:08	-39.6	Dark	Up	56.7	201.4	Up	11:00:03 - 11:24:13	1461
Yakima	11:12:08	-39.8	Dark	Up	57.1	201.6	Up	11:00:03 - 11:24:13	1423
Toppenish/White Swan	11:12:08	-39.7	Dark	Up	57.3	202.0	Up	11:00:03 - 11:24:13	1400
PNWRO	11:12:01	-38.8	Dark	Up	57.2	204.7	Up	10:59:56 - 11:24:06	1349
The Dalles	11:12:11	-40.4	Dark	Up	58.2	201.1	Up	11:00:06 - 11:24:16	1334
Maupin	11:12:11	-40.5	Dark	Up	58.5	201.5	Up	11:00:06 - 11:24:16	1292
Sisters	11:12:13	-41.0	Dark	Up	59.5	201.2	Up	11:00:08 - 11:24:18	1212
Bend	11:12:12	-40.9	Dark	Up	59.6	201.8	Up	11:00:07 - 11:24:17	1186
Oregon Observatory	11:12:12	-41.1	Dark	Up	59.8	201.7	Up	11:00:07 - 11:24:17	1171
Chiloquin	11:12:15	-41.7	Dark	Up	61.2	201.8	Up	11:00:10 - 11:24:20	1046
Klamath Falls	11:12:14	-41.7	Dark	Up	61.5	202.1	Up	11:00:09 - 11:24:19	1011
Cedarville	11:12:07	-40.7	Dark	Up	61.6	205.7	Up	11:00:02 - 11:24:12	922
Fall River/Burney	11:12:13	-41.7	Dark	Up	62.4	203.7	Up	11:00:08 - 11:24:18	888
Greenville	11:12:11	-41.5	Dark	Up	63.1	205.3	Up	11:00:06 - 11:24:16	791
Gimple	11:12:11	-41.5	Dark	Up	63.1	205.5	Up	11:00:06 - 11:24:16	790
Quincy	11:12:11	-41.5	Dark	Up	63.3	205.5	Up	11:00:06 - 11:24:16	771
Portola	11:12:09	-41.2	Dark	Up	63.3	206.6	Up	11:00:04 - 11:24:14	752
Reno	11:12:06	-40.8	Dark	Up	63.3	208.1	Up	11:00:01 - 11:24:11	718
Carson City	11:12:06	-40.8	Dark	Up	63.6	208.5	Up	11:00:01 - 11:24:11	681
Dunrhomin	11:10:58	-29.7	Dark	Up	55.6	231.1	Up	10:58:53 - 11:23:03	665
Gardnerville	11:12:06	-40.8	Dark	Up	63.8	208.8	Up	11:00:01 - 11:24:11	655
Yerington	11:12:03	-40.4	Dark	Up	63.5	209.9	Up	10:59:58 - 11:24:08	653
Nikitin	11:10:58	-29.8	Dark	Up	55.8	231.2	Up	10:58:53 - 11:23:03	646
CU-SBO	11:10:59	-29.8	Dark	Up	55.9	231.2	Up	10:58:54 - 11:23:04	640
Hawthorne	11:12:01	-40.0	Dark	Up	63.7	211.4	Up	10:59:56 - 11:24:06	600
Lee Vining	11:12:03	-40.5	Dark	Up	64.4	211.1	Up	10:59:58 - 11:24:08	547
Bishop	11:12:00	-40.0	Dark	Up	64.6	213.2	Up	10:59:55 - 11:24:05	477
Beatty	11:11:52	-38.8	Dark	Up	64.2	216.9	Up	10:59:47 - 11:23:57	411
Patrick	11:11:38	-36.6	Dark	Up	63.9	224.1	Up	10:59:33 - 11:23:43	225
Laughlin/Bullhead City	11:11:41	-37.2	Dark	Up	64.5	223.2	Up	10:59:36 - 11:23:46	206
Wildwood	11:12:02	-40.5	Dark	Up	67.4	217.0	Up	10:59:57 - 11:24:07	138
Lake Havasu City	11:11:40	-37.0	Dark	Up	64.8	224.7	Up	10:59:35 - 11:23:45	132
Idyllwild	11:11:52	-38.9	Dark	Up	66.7	221.3	Up	10:59:47 - 11:23:57	78
George/Scottsdale	11:11:28	-35.0	Dark	Up	63.8	230.0	Up	10:59:23 - 11:23:33	27
Calipatria	11:11:46	-38.0	Dark	Up	66.5	224.6	Up	10:59:41 - 11:23:51	0
Yuma	11:11:42	-37.3	Dark	Up	66.2	226.9	Up	10:59:37 - 11:23:47	-56

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 11QF99, (2024/11/15 11:14UT)
Object            RA         Dec     mag  sep  mel
Betelgeuse     05:55:10.3 +07:24:26  0.4  8.01  45
Alhena         06:37:42.8 +16:23:57  1.9  8.61  52
69 Ori         06:12:03.2 +16:07:49  4.7  2.53  46
PPM 121788     06:02:02.8 +15:12:23  8.2  0.05  44
11QF99         06:02:14.3 +15:13:55 13.6        44
Positions are for J2000

Event circumstances last updated at 2023/09/01 03:11:08 UT

RECON