RECON: TNO occultation with 03YJ179

Event between 03YJ179 and star GA1140:02384093 with event index number of 2006576

Geocentric closest approach at 2024/12/13 09:52:15 UTC

J2000 position of star is 06:36:50.8 +24:31:47
Equinox of date position of star is 06:38:18.5 +24:30:29
Stellar brightness G=13.9, use SENSEUP=64 with the MallinCam and and exposure time of 1 seconds with the QHY174 camera.
Star is 43 degrees from the moon. Moon is 95% illuminated.
Apparent brightness V=23.0

[RECON map]
Object is 40.4 AU from the Sun and 39.5 AU from the Earth.
Apparent velocity is 24.1 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 797 seconds.
The 1-sigma cross-track error in the shadow position is 1720 km.
The sky-plane scale is 28628.7 km/arcsec.

The object has an absolute magnitude Hv=6.9
Diameter=247.8 km assuming a 5% albedo -- 10.3 sec chord
Diameter=101.1 km assuming a 30% albedo -- 4.2 sec chord
Dynamical classification is CLASSICAL
 
 
 
 
 
 

Star training set for 03YJ179, (2024/12/13 09:52UT)
Object            RA         Dec     mag  sep  mel
Pollux         07:46:50.5 +27:57:50  1.1 15.72  58
Alhena         06:39:09.2 +16:22:33  1.9  8.13  45
PPM 096264     06:38:59.0 +24:34:04  6.5  0.15  43
PPM 096244     06:38:07.6 +24:24:25  9.7  0.12  43
03YJ179        06:38:22.6 +24:30:25 13.9        43
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 1.1 sigma about the mid-time.
The median site spacing is 34.8 km RECON observability=1.0 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	09:51:15	-46.2	Dark	Up	56.4	224.6	Up	09:36:15 - 10:06:15	6768
Kamloops	09:51:52	-54.5	Dark	Up	62.5	202.0	Up	09:36:52 - 10:06:52	6437
Kelowna	09:51:48	-54.6	Dark	Up	63.0	204.3	Up	09:36:48 - 10:06:48	6367
Peachland	09:51:50	-54.8	Dark	Up	63.2	203.9	Up	09:36:50 - 10:06:50	6352
Summerland	09:51:49	-54.8	Dark	Up	63.3	204.2	Up	09:36:49 - 10:06:49	6339
Penticton	09:51:48	-54.8	Dark	Up	63.4	204.4	Up	09:36:48 - 10:06:48	6334
Oliver	09:51:48	-55.0	Dark	Up	63.7	204.7	Up	09:36:48 - 10:06:48	6299
Anarchist Mountain Observatory	09:51:47	-55.0	Dark	Up	63.8	205.2	Up	09:36:47 - 10:06:47	6284
Okanogan	09:51:48	-55.5	Dark	Up	64.4	205.4	Up	09:36:48 - 10:06:48	6217
Victoria	09:51:59	-57.4	Dark	Up	65.2	197.5	Up	09:36:59 - 10:06:59	6193
Brewster	09:51:47	-55.8	Dark	Up	64.7	205.2	Up	09:36:47 - 10:06:47	6188
Manson/Chelan	09:51:49	-56.1	Dark	Up	65.0	204.7	Up	09:36:49 - 10:06:49	6163
Wenatchee	09:51:48	-56.5	Dark	Up	65.5	204.7	Up	09:36:48 - 10:06:48	6113
Ellensburg	09:51:49	-56.9	Dark	Up	65.9	204.7	Up	09:36:49 - 10:06:49	6069
Yakima	09:51:48	-57.1	Dark	Up	66.3	205.0	Up	09:36:48 - 10:06:48	6028
Toppenish/White Swan	09:51:48	-57.1	Dark	Up	66.5	205.6	Up	09:36:48 - 10:06:48	6008
PNWRO	09:51:43	-56.5	Dark	Up	66.3	209.1	Up	09:36:43 - 10:06:43	5989
The Dalles	09:51:49	-58.0	Dark	Up	67.4	204.6	Up	09:36:49 - 10:06:49	5920
Maupin	09:51:49	-58.2	Dark	Up	67.8	205.3	Up	09:36:49 - 10:06:49	5879
Sisters	09:51:50	-59.0	Dark	Up	68.7	205.1	Up	09:36:50 - 10:06:50	5783
Bend	09:51:49	-59.0	Dark	Up	68.8	206.0	Up	09:36:49 - 10:06:49	5762
Oregon Observatory	09:51:49	-59.1	Dark	Up	69.0	205.8	Up	09:36:49 - 10:06:49	5742
Dunrhomin	09:50:52	-49.4	Dark	Up	63.2	242.0	Up	09:35:52 - 10:05:52	5633
Nikitin	09:50:52	-49.5	Dark	Up	63.3	242.2	Up	09:35:52 - 10:05:52	5614
CU-SBO	09:50:52	-49.5	Dark	Up	63.4	242.3	Up	09:35:52 - 10:05:52	5605
Chiloquin	09:51:50	-60.1	Dark	Up	70.3	206.4	Up	09:36:50 - 10:06:50	5601
Klamath Falls	09:51:48	-60.2	Dark	Up	70.6	207.0	Up	09:36:48 - 10:06:48	5566
Cedarville	09:51:43	-59.5	Dark	Up	70.7	212.0	Up	09:36:43 - 10:06:43	5513
Fall River/Burney	09:51:46	-60.6	Dark	Up	71.5	209.6	Up	09:36:46 - 10:06:46	5447
Gimple	09:51:44	-60.6	Dark	Up	72.1	212.4	Up	09:36:44 - 10:06:44	5358
Greenville	09:51:44	-60.7	Dark	Up	72.1	212.2	Up	09:36:44 - 10:06:44	5358
Quincy	09:51:44	-60.8	Dark	Up	72.3	212.5	Up	09:36:44 - 10:06:44	5336
Portola	09:51:42	-60.5	Dark	Up	72.2	214.0	Up	09:36:42 - 10:06:42	5329
Reno	09:51:39	-60.2	Dark	Up	72.2	216.1	Up	09:36:39 - 10:06:39	5309
Carson City	09:51:40	-60.3	Dark	Up	72.4	216.9	Up	09:36:40 - 10:06:40	5272
Yerington	09:51:37	-59.9	Dark	Up	72.3	218.8	Up	09:36:37 - 10:06:37	5260
Gardnerville	09:51:39	-60.4	Dark	Up	72.6	217.5	Up	09:36:39 - 10:06:39	5247
Hawthorne	09:51:35	-59.7	Dark	Up	72.4	221.1	Up	09:36:35 - 10:06:35	5218
Lee Vining	09:51:36	-60.3	Dark	Up	73.1	221.0	Up	09:36:36 - 10:06:36	5152
Bishop	09:51:33	-60.0	Dark	Up	73.1	224.2	Up	09:36:33 - 10:06:33	5098
Beatty	09:51:27	-58.9	Dark	Up	72.5	229.1	Up	09:36:27 - 10:06:27	5073
Patrick	09:51:15	-57.0	Dark	Up	71.5	238.7	Up	09:36:15 - 10:06:15	4963
Laughlin/Bullhead City	09:51:17	-57.7	Dark	Up	72.1	238.0	Up	09:36:17 - 10:06:17	4924
Lake Havasu City	09:51:16	-57.6	Dark	Up	72.3	240.2	Up	09:36:16 - 10:06:16	4857
George/Scottsdale	09:51:06	-55.7	Dark	Up	70.9	246.4	Up	09:36:06 - 10:06:06	4819
Wildwood	09:51:30	-61.1	Dark	Up	75.4	232.3	Up	09:36:30 - 10:06:30	4745
Idyllwild	09:51:23	-59.7	Dark	Up	74.4	237.7	Up	09:36:23 - 10:06:23	4736
Calipatria	09:51:18	-58.8	Dark	Up	73.8	241.9	Up	09:36:18 - 10:06:18	4690
Yuma	09:51:15	-58.2	Dark	Up	73.4	244.9	Up	09:36:15 - 10:06:15	4659

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 03YJ179, (2024/12/13 09:52UT)
Object            RA         Dec     mag  sep  mel
Pollux         07:45:17.9 +28:01:33  1.1 15.72  58
Alhena         06:37:42.8 +16:23:57  1.9  8.13  45
PPM 096264     06:37:27.2 +24:35:27  6.5  0.15  43
PPM 096244     06:36:35.9 +24:25:46  9.7  0.12  43
03YJ179        06:36:50.8 +24:31:47 13.9        43
Positions are for J2000

Event circumstances last updated at 2023/11/10 05:26:05 UT

RECON