RECON: TNO occultation with 04VZ130

Event between 04VZ130 and star GA1200:01783432 with event index number of 1978880

Geocentric closest approach at 2023/12/10 09:10:58 UTC

J2000 position of star is 05:39:08.5 +31:53:04
Equinox of date position of star is 05:40:38.2 +31:53:45
Stellar brightness G=16.9, use SENSEUP=128 with the MallinCam and and exposure time of 2 seconds with the QHY174 camera.
Star is 140 degrees from the moon. Moon is 8% illuminated.
Apparent brightness V=23.9

[RECON map]
Object is 33.4 AU from the Sun and 32.4 AU from the Earth.
Apparent velocity is 24.7 km/sec on the sky relative to the star, or, 3.8 arcsec/hr.
The 1-sigma error in the time of the event is 226 seconds.
The 1-sigma cross-track error in the shadow position is 1656 km.
The sky-plane scale is 23525.6 km/arcsec.

The object has an absolute magnitude Hv=8.7
Diameter=109.1 km assuming a 5% albedo -- 4.4 sec chord
Diameter=44.6 km assuming a 30% albedo -- 1.8 sec chord
Dynamical classification is 3:2E
 
 
 
 
 
 

Star training set for 04VZ130, (2023/12/10 09:11UT)
Object            RA         Dec     mag  sep  mel
Aldebaran      04:37:17.8 +16:33:20  0.8 21.02 155
Alnath         05:27:48.4 +28:37:31  1.6  4.29 143
PPM 070700     05:42:08.9 +31:22:08  5.9  0.61 140
PPM 070687     05:41:37.0 +31:54:39  8.3  0.20 140
04VZ130        05:40:42.0 +31:53:46 16.9       140
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 4.0 sigma about the mid-time.
The median site spacing is 33.6 km RECON observability=1.0 and success probability=0.7%

Site	Site mid-time (UT)	Sun alt (deg)	Sky	Moon	Star alt (deg)	Star az (deg)	Target	Observing Time (UT)	X-track (km)
Sleaford	09:09:51	-51.2	Dark	Down	62.5	232.7	Up	08:54:51 - 09:24:51	7888
Kamloops	09:10:27	-58.5	Dark	Down	69.4	208.3	Up	08:55:27 - 09:25:27	7563
Kelowna	09:10:25	-58.8	Dark	Down	69.9	211.4	Up	08:55:25 - 09:25:25	7486
Peachland	09:10:25	-59.0	Dark	Down	70.1	210.9	Up	08:55:25 - 09:25:25	7472
Summerland	09:10:25	-59.1	Dark	Down	70.1	211.3	Up	08:55:25 - 09:25:25	7457
Penticton	09:10:25	-59.1	Dark	Down	70.2	211.7	Up	08:55:25 - 09:25:25	7451
Oliver	09:10:24	-59.4	Dark	Down	70.5	212.2	Up	08:55:24 - 09:25:24	7414
Anarchist Mountain Observatory	09:10:24	-59.4	Dark	Down	70.5	212.9	Up	08:55:24 - 09:25:24	7398
Okanogan	09:10:23	-60.0	Dark	Down	71.2	213.4	Up	08:55:23 - 09:25:23	7328
Victoria	09:10:35	-61.4	Dark	Down	72.2	203.6	Up	08:55:35 - 09:25:35	7314
Brewster	09:10:24	-60.3	Dark	Down	71.5	213.3	Up	08:55:24 - 09:25:24	7297
Manson/Chelan	09:10:25	-60.7	Dark	Down	71.8	212.8	Up	08:55:25 - 09:25:25	7272
Wenatchee	09:10:25	-61.1	Dark	Down	72.2	213.2	Up	08:55:25 - 09:25:25	7220
Ellensburg	09:10:26	-61.5	Dark	Down	72.7	213.3	Up	08:55:26 - 09:25:26	7174
Yakima	09:10:26	-61.8	Dark	Down	73.0	214.0	Up	08:55:26 - 09:25:26	7131
Toppenish/White Swan	09:10:25	-61.9	Dark	Down	73.1	214.8	Up	08:55:25 - 09:25:25	7109
PNWRO	09:10:20	-61.5	Dark	Down	72.8	219.3	Up	08:55:20 - 09:25:20	7084
The Dalles	09:10:27	-62.9	Dark	Down	74.1	214.2	Up	08:55:27 - 09:25:27	7019
Maupin	09:10:26	-63.2	Dark	Down	74.4	215.4	Up	08:55:26 - 09:25:26	6975
Sisters	09:10:27	-64.1	Dark	Down	75.3	215.9	Up	08:55:27 - 09:25:27	6876
Bend	09:10:26	-64.1	Dark	Down	75.4	217.2	Up	08:55:26 - 09:25:26	6853
Oregon Observatory	09:10:26	-64.3	Dark	Down	75.6	217.2	Up	08:55:26 - 09:25:26	6833
Chiloquin	09:10:27	-65.5	Dark	Down	76.8	219.3	Up	08:55:27 - 09:25:27	6687
Dunrhomin	09:09:32	-56.5	Dark	Down	67.3	256.7	Up	08:54:32 - 09:24:32	6686
Nikitin	09:09:31	-56.6	Dark	Down	67.3	257.1	Up	08:54:31 - 09:24:31	6666
CU-SBO	09:09:31	-56.6	Dark	Down	67.4	257.2	Up	08:54:31 - 09:24:31	6658
Klamath Falls	09:10:27	-65.7	Dark	Down	77.0	220.5	Up	08:55:27 - 09:25:27	6651
Cedarville	09:10:21	-65.4	Dark	Down	76.7	227.2	Up	08:55:21 - 09:25:21	6590
Fall River/Burney	09:10:25	-66.4	Dark	Down	77.7	225.2	Up	08:55:25 - 09:25:25	6526
Gimple	09:10:22	-66.7	Dark	Down	78.0	229.9	Up	08:55:22 - 09:25:22	6432
Greenville	09:10:23	-66.7	Dark	Down	78.1	229.6	Up	08:55:23 - 09:25:23	6432
Quincy	09:10:23	-66.9	Dark	Down	78.2	230.4	Up	08:55:23 - 09:25:23	6409
Portola	09:10:21	-66.7	Dark	Down	78.0	232.2	Up	08:55:21 - 09:25:21	6400
Reno	09:10:19	-66.5	Dark	Down	77.7	235.0	Up	08:55:19 - 09:25:19	6378
Carson City	09:10:18	-66.7	Dark	Down	77.9	236.4	Up	08:55:18 - 09:25:18	6339
Yerington	09:10:16	-66.4	Dark	Down	77.6	238.8	Up	08:55:16 - 09:25:16	6325
Gardnerville	09:10:18	-66.8	Dark	Down	78.0	237.5	Up	08:55:18 - 09:25:18	6313
Hawthorne	09:10:14	-66.4	Dark	Down	77.5	241.8	Up	08:55:14 - 09:25:14	6280
Lee Vining	09:10:15	-67.0	Dark	Down	78.1	243.0	Up	08:55:15 - 09:25:15	6213
Bishop	09:10:12	-66.9	Dark	Down	77.8	247.1	Up	08:55:12 - 09:25:12	6156
Beatty	09:10:06	-66.0	Dark	Down	76.8	252.0	Up	08:55:06 - 09:25:06	6126
Patrick	09:09:55	-64.6	Dark	Down	74.9	261.6	Up	08:54:55 - 09:24:55	6006
Laughlin/Bullhead City	09:09:57	-65.2	Dark	Down	75.5	261.7	Up	08:54:57 - 09:24:57	5968
Lake Havasu City	09:09:56	-65.3	Dark	Down	75.4	264.6	Up	08:54:56 - 09:24:56	5898
George/Scottsdale	09:09:46	-63.6	Dark	Down	73.4	269.1	Up	08:54:46 - 09:24:46	5855
Wildwood	09:10:11	-68.6	Dark	Down	78.9	262.1	Up	08:55:11 - 09:25:11	5795
Idyllwild	09:10:03	-67.4	Dark	Down	77.4	265.7	Up	08:55:03 - 09:25:03	5780
Calipatria	09:09:58	-66.7	Dark	Down	76.4	269.1	Up	08:54:58 - 09:24:58	5731
Yuma	09:09:55	-66.1	Dark	Down	75.7	271.3	Up	08:54:55 - 09:24:55	5697

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 04VZ130, (2023/12/10 09:11UT)
Object            RA         Dec     mag  sep  mel
Aldebaran      04:35:55.3 +16:30:29  0.8 21.02 155
Alnath         05:26:17.6 +28:36:23  1.6  4.29 143
PPM 070700     05:40:35.9 +31:21:29  5.9  0.61 140
PPM 070687     05:40:03.5 +31:53:59  8.3  0.20 140
04VZ130        05:39:08.5 +31:53:04 16.9       140
Positions are for J2000

Event circumstances last updated at 2022/12/24 03:53:29 UT

RECON